Practical Data for Metallurgists 18Th Edition the Industry Standard for More Than 60 Years

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Practical Data for Metallurgists Practical Data for Metallurgists 18th Edition The Industry Standard for More Than 60 Years

The renowned Practical Data for Metallurgists has served as an essential industry reference since its introduction in 1953. This guide includes an updated listing of standard steels and their chemical compositions, hardening abilities and tolerances. Technical experts, operations managers and engineers depend on this handbook as the definitive sou ce for metallurgical information – and more.

At TimkenSteel, a problem-solving mindset and relentless customer focus permeate our culture. About 40 percent of our salaried workforce consists of degreed engineers. Our sales engineers on the front line work in partnership with our customers to understand not only their application, but also the system around it. Our team of career metallurgists has some of the deepest material science experience in the world. We put this expertise, which also conforms to American Iron and Steel Institute and Society of Automotive Engineers standards, into this 18th edition of Practical Data for Metallurgists.

1 TABLE OF CONTENTS Page Steel Chemistries Number Chemical Compositions, etc. 4 – 32

Miscellaneous Steel Properties USA-European-Japanese Grades 33 European Industrial Standards 34 – 37 Japanese Automotive Standards 38 – 42 Japanese Industrial Standards 43 – 48 Hardenability Band Data 49 – 59 Restricted Hardenability Band Data 60 – 62 Jominy Correlation with Round Bars 63 – 66 Combined Hardenability Charts 67 – 80 Martensite Percent vs. Carbon Content and Hardness 81 Relationship of Fatigue Strength to Tensile Strength 82 Carburizing Rates of Carbon and Alloy Steels 83 – 87 Critical Transformation Temperatures and Ms/Mf Points 88 – 90 Hot Working Temperatures 91 – 92

Tubing General Tolerances 93 – 94 Length Tolerances 95 Straightness Tolerances 96 – 97 Tube Size Calculations 98 – 101 OD Cleanups 102 Formulas for Calculating Surface Cleanup 103 Formulas for Calculating Camber (Straightness) Cleanup 103

Bar General Tolerances 104 – 105 Straightness Tolerances 105 Weight Table – Rounds and Squares 106 – 109 Reduction Ratios for Round and Square Bars 110 Cold Shearing Metric Equivalents and Limitations 111 – 117 Estimated Mechanical Properties for Bars 118 – 119

Miscellaneous Information Iron Carbon Phase Diagram 120 – 121 Statistical Process Control (SPC) Information 124 – 125 Handy Physical Constants 126 Engineering Conversion Factors 127 – 129 Metric-English Stress Conversion Tables 130 Work-Energy Conversion Tables 131 Decimal Equivalent Chart 132 – 133 Temperature Conversion Tables 134 – 135 Hardness Conversion Tables 136 – 137 Useful Equations for Hardenable Alloy Steels 138 Glossary of Metallurgical Terms 139 – 144 Glossary of Forging Terms 145 – 149

3 STANDARD CARBON STEELS Chemical Composition Ranges and Limits

SAE P S No. C Mn Max Max 1005 .06 max .35 max .040 .050 1006 .08 max .25/.40 .040 .050 1008 .10 max .30/.50 .040 .050 1010 .08/.13 .30/.60 .040 .050 1011 .08/.14 .60/.90 .040 .050 1012 .10/.15 .30/.60 .040 .050 1013 .11/.16 .30/.60 .030 .050 1015 .13/.18 .30/.60 .040 .050 1016 .13/.18 .60/.90 .040 .050 1017 .15/.20 .30/.60 .040 .050 1018 .15/.20 .60/.90 .040 .050 1020 .18/.23 .30/.60 .040 .050 1021 .18/.23 .60/.90 .040 .050 1022 .18/.23 .70/1.00 .040 .050 1023 .20/.25 .30/.60 .040 .050 1025 .22/.28 .30/.60 .040 .050 1026 .22/.28 .60/.90 .040 .050 1029 .25/.31 .60/.90 .040 .050 1030 .28/.34 .60/.90 .040 .050 1035 .32/.38 .60/.90 .040 .050 1038 .35/.42 .60/.90 .040 .050 1039 .37/.44 .70/1.00 .040 .050 1040 .37/.44 .60/.90 .040 .050 1042 .40/.47 .60/.90 .040 .050 1043 .40/.47 .70/1.00 .040 .050 1044 .43/.50 .30/.60 .040 .050 1045 .43/.50 .60/.90 .040 .050 1046 .43/.50 .70/1.00 .040 .050 1049 .46/.53 .60/.90 .040 .050 1050 .48/.55 .60/.90 .040 .050 1053 .48/.55 .70/1.00 .040 .050 1055 .50/.60 .60/.90 .040 .050 1060 .55/.65 .60/.90 .040 .050 1065 .60/.70 .60/.90 .040 .050 1070 .65/.75 .60/.90 .040 .050 1074 .70/.80 .50/.80 .040 .050 1078 .72/.85 .30/.60 .040 .050 1080 .75/.88 .60/.90 .040 .050 1086 .80/.93 .30/.50 .040 .050 1090 .85/.98 .60/.90 .040 .050 1095 .90/1.03 .30/.50 .040 .050

4 Return to Table of Contents FREE CUTTING RESULPHURIZED STEELS Chemical Composition Ranges and Limits

SAE P No. C Mn Max S 1117 .14/.20 1.00/1.30 .030 .08/.13 1118 .14/.20 1.30/1.60 .030 .08/.13 1126 .23/.29 .70/1.00 .030 .08/.13 1132 .27/.34 1.35/1.65 .030 .08/.13 1137 .32/.39 1.35/1.65 .030 .08/.13 1138 .34/.40 .70/1.00 .030 .08/.13 1140 .37/.44 .70/1.00 .030 .08/.13 1141 .37/.45 1.35/1.65 .030 .08/.13 1144 .40/.48 1.35/1.65 .030 .24/.33 1146 .42/.49 .70/1.00 .030 .08/.13 1151 .48/.55 .70/1.00 .030 .08/.13

FREE CUTTING REPHOSPHORIZED AND RESULPHURIZED STEEL Chemical Composition Ranges and Limits

SAE No. C Mn P S 1212 .13 max .70/1.00 .07/.12 .16/.23 1213 .13 max .70/1.00 .07/.12 .24/.33 1215 .09 max .75/1.05 .04/.09 .26/.35 NOTE: 12XX grades are customarily furnished without specified silicon content because o adverse effect on machinability.

HIGH MANGANESE CARBON STEEL Chemical Composition Ranges and Limits

SAE P S No. C Mn Max Max 1522 .18/.24 1.10/1.40 .030 .050 1524 .19/.25 1.35/1.65 .030 .050 1526 .22/.29 1.10/1.40 .030 .050 1527 .22/.29 1.20/1.50 .030 .050 1541 .36/.44 1.35/1.65 .030 .050 1547 .43/.51 1.35/1.65 .030 .050 1548 .44/.52 1.10/1.40 .030 .050 1552 .47/.55 1.20/1.50 .030 .050 1566 .60/.71 .85/1.15 .030 .050

5 Return to Table of Contents STANDARD ALLOY STEELS Chemical Composition Ranges and Limits

SAE No. C Mn Cr Ni Mo Other 1330 .28/.33 1.60/1.80 ...... 1335 .33/.38 1.60/1.90 ...... 1340 .38/.43 1.60/1.90 ...... 4023 .20/.25 .70/.90 ...... 20/.30 ...... 4027 .25/.30 .70/.90 ...... 20/.30 ...... 4037 .35/.40 .70/.90 ...... 20/.30 ...... 4047 .45/.50 .70/.90 ...... 20/.30 ...... 4118 .18/.23 .70/.90 .40/.60 ...... 08/.15 ...... 4120(1) .18/.23 .90/1.20 .40/.60 ...... 13/.20 ...... 4130 .28/.33 .40/.60 .80/1.10 ...... 15/.25 ...... 4137 .35/.40 .70/.90 .80/1.10 ...... 15/.25 ...... 4140 .38/.43 .75/1.00 .80/1.10 ...... 15/.25 ...... 4142 .40/.45 .75/1.00 .80/1.10 ...... 15/.25 ...... 4145 .43/.48 .75/1.00 .80/1.10 ...... 15/.25 ...... 4150 .48/.53 .75/1.00 .80/1.10 ...... 15/.25 ......

4320 .17/.22 .45/ .65 .40/.60 1.65/2.00 .20/.30 ...... 4340 .38/.43 .60/.80 .70/.90 1.65/2.00 .20/.30 ...... E4340 .38/.43 .65/.85 .70/.90 1.65/2.00 .20/.30 ...... 4620 .17/.22 .45/.65 ...... 1.65/2.00 .20/.30 4817 .15/.20 .40/.60 ...... 3.25/3.75 .20/.30 ...... 4820 .18/.23 .50/.70 ...... 3.25/3.75 .20/.30 ...... 50B46(2) .44/.49 .75/1.00 .20/.35 ......

5120 .17/.22 .70/.90 .70/.90 ...... 5130 .28/.33 .70/.90 .80/1.10 ...... 5132 .30/.35 .60/.80 .75/1.00 ...... 5140 .38/.43 .70/.90 .70/.90 ...... 5150 .48/.53 .70/.90 .70/.90 ...... 5160 .56/.64 .75/1.00 .70/.90 ...... 51B60(2) .56/.64 .75/1.00 .70/.90 ......

51100 .98/1.10 .25/.45 .90/1.15 ...... E52100 .98/1.10 .25/.45 1.30/1.60 ...... P 5 .025 S 5 .025 52100 .93/1.05 .25/.45 1.35/1.60 ...... P 5 .025 S 5 .015

(1) Formerly PS 15 (2) B 5 .0005/.003

6 Return to Table of Contents STANDARD ALLOY STEELS – continued

SAE No. C Mn Cr Ni Mo Other V 6150 .48/.53 .70/.90 .80/1.10 ...... 15 min

8615 .13/.18 .70/.90 .40/.60 .40/.70 .15/.25 ...... 8617 .15/.20 .70/.90 .40/.60 .40/.70 .15/.25 ...... 8620 .18/.23 .70/.90 .40/.60 .40/.70 .15/.25 ...... 8622 .20/.25 .70/.90 .40/.60 .40/.70 .15/.25 ...... 8630 .28/.33 .70/.90 .40/.60 .40/.70 .15/.25 ...... 8640 .38/.43 .75/1.00 .40/.60 .40/.70 .15/.25 ...... 8645 .43/.48 .75/1.00 .40/.60 .40/.70 .15/.25 ......

8720 .18/.23 .70/.90 .40/.60 .40/.70 .20/.30 ......

8822 .20/.25 .75/1.00 .40/.60 .40/.70 .30/.40 ...... Si 9259 .56/.64 .75/1.00 .45/.65 ...... 70/1.10 9260 .56/.64 .75/1.00 ...... 1.80/2.20 Unless specified Si 5 .15/.35, P 5 .035 max (SAE J1268), S 5 .040 max, Ni 5 .25 max, Cr 5 .20 max, Mo 5 .06 max These standard grades can have modifications in chemistry when ag eed upon by user and supplier.

7 Return to Table of Contents PS GRADES (Formerly EX Grades) Chemical Composition Ranges and Limits

PS No. C Mn Cr Ni Mo Other 10 .19/.24 .95/1.25 .25/.40 .20/.40 .05/.10 ...... 16 .20/.25 .90/1.20 .40/.60 ...... 13/.20 ...... 17 .23/.28 .90/1.20 .40/.60 ...... 13/.20 ...... 18 .25/.30 .90/1.20 .40/.60 ...... 13/.20 B 19 .18/.23 .90/1.20 .40/.60 ...... 08/.15 .0005-.003 20 .13/.18 .90/1.20 .40/.60 ...... 13/.20 ...... 21 .15/.20 .90/1.20 .40/.60 ...... 13/.20 ...... 31 .15/.20 .70/.90 .45/.65 .70/1.00 .45/.60 ...... 32 .18/.23 .70/.90 .45/.65 .70/1.00 .45/.60 ...... 33 .17/.24 .85/1.25 .20 min .20 min .05 min ...... 34 .28/.33 .90/1.20 .40/.60 ...... 13/.20 ...... 36 .38/.43 .90/1.20 .45/.65 ...... 13/.20 ...... 38 .43/.48 .90/1.20 .45/.65 ...... 13/.20 ...... 39 .48/.53 .90/1.20 .45/.65 ...... 13/.20 ...... 40 .51/.59 .90/1.20 .45/.65 ...... 13/.20 ...... 54 .19/.25 .70/1.05 .40/.70 ...... 05 min ...... 55 .15/.20 .70/1.00 .45/.65 1.65/2.00 .65/.80 ...... 56 .08/.13 .70/1.00 .45/.65 1.65/2.00 .65/.80 ...... 57(1) .08 max 1.25 max 17.00/19.00 ...... 1.75/2.25 ...... 58 .16/.21 1.00/1.30 .45/.65 ...... 59 .18/.23 1.00/1.30 .70/.90 ...... 61 .23/.28 1.00/1.30 .70/.90 ...... B 63 .31/.38 .75/1.10 .45/.65 ...... 0005-.003 64 .16/.21 1.00/1.30 .70/.90 ...... 65 .21/.26 1.00/1.30 .70/.90 ...... V 66 .16/.21 .40/.70 .45/.75 1.65/2.00 .08/.15 .10/.15 67 .42/.49 .80/1.20 .85/ 1.20 ...... 25/.35 ...... Unless Specified Si 5 .15/.35, P 5 .035 max, S 5 .040 max (1) P 5 .040 max, S 5 .15/.35, Si 5 1.00 max Note: PS Nos. 15, 24 and 30 are now standard grades. (See SAE Nos. 4120, 4121 and 4715)

8 Return to Table of Contents STANDARD H STEELS Chemical Composition Ranges

SAE No. C Mn Cr Ni Mo Other 1330 H .27/.33 1.45/2.05 ...... 1335 H .32/.38 1.45/2.05 ...... 1340 H .37/.44 1.45/2.05 ...... 1345 H .42/.49 1.45/2.05 ......

4027 H .24/.30 .60/1.00 ...... 20/.30 ...... S 4028 H .24/.30 .60/1.00 ...... 20/.30 .035/.050 4032 H .29/.35 .60/1.00 ...... 20/.30 ...... 4037 H .34/.41 .60/1.00 ...... 20/.30 ...... 4042 H .39/.46 .60/1.00 ...... 20/.30 ...... 4047 H .44/.51 .60/1.00 ...... 20/.30 ......

4118 H .17/.23 .60/1.00 .30/.70 ...... 08/.15 ...... 4130 H .27/.33 .30/.70 .75/1.20 ...... 15/.25 ...... 4135 H .32/.38 .60/1.00 .75/1.20 ...... 15/.25 ...... 4137 H .34/.41 .60/1.00 .75/1.20 ...... 15/.25 ...... 4140 H .37/.44 .65/1.10 .75/1.20 ...... 15/.25 ...... 4142 H .39/.46 .65/1.10 .75/1.20 ...... 15/.25 ...... 4145 H .42/.49 .65/1.10 .75/1.20 ...... 15/.25 ...... 4147 H .44/.51 .65/1.10 .75/1.20 ...... 15/.25 ...... 4150 H .47/.54 .65/1.10 .75/1.20 ...... 15/.25 ...... 4161 H .55/.65 .65/1.10 .65/.95 ...... 25/.35 ......

4320 H .17/.23 .40/.70 .35/.65 1.55/2.00 .20/.30 ...... 4340 H .37/.44 .55/.90 .65/.95 1.55/2.00 .20/.30 ...... E4340 H .37/.44 .60/.95 .65/.95 1.55/2.00 .20/.30 ......

4620 H .17/.23 .35/.75 ...... 1.55/2.00 .20/.30 ...... Si 4621 H .17/.23 .60/1.00 ...... 1.55/2.00 .20/.30 .15/.35 Si 4626 .23/.29 .40/.70 ...... 65/1.05 .15/.25 .15/.35 4718 H .15/.21 .60/.95 .30/.60 .85/1.25 .30/.40 ......

4720 H .17/.23 .45/.75 .30/.60 .85/1.25 .15/.25 ......

4815 H .12/.18 .30/.70 ...... 3.20/3.80 .20/.30 ...... 4817 H .14/.20 .30/.70 ...... 3.20/3.80 .20/.30 ...... 4820 H .17/.23 .40/.80 ...... 3.20/3.80 .20/.30 ...... B 50B40 H .37/.44 .65/1.10 .30/.70 ...... 0005/.003 B 50B44 H .42/.49 .65/1.10 .30/.70 ...... 0005/.003 5046 H .43/.50 .65/1.10 .13/.43 ...... B 50B46 H .43/.50 .65/1.10 .13/.43 ...... 0005/.003 B 50B50 H .47/.54 .65/1.10 .30/.70 ...... 0005/.003 B 50B60 H .55/.65 .65/1.10 .30/.70 ...... 0005/.003

9 Return to Table of Contents STANDARD H STEELS – continued

SAE No. C Mn Cr Ni Mo Other 5120 H .17/.23 .60/1.00 .60/1.00 ...... 5130 H .27/.33 .60/1.00 .75/1.20 ...... 5132 H .29/.35 .50/.90 .65/1.10 ...... 5135 H .32/.38 .50/.90 .70/1.15 ...... 5140 H .37/.44 .60/1.00 .60/1.00 ...... 5147 H .45/.52 .60/1.05 .80/1.25 ...... 5150 H .47/.54 .60/1.00 .60/1.00 ...... 5155 H .50/.60 .60/1.00 .60/1.00 ...... 5160 H .55/.65 .65/1.10 .60/1.00 ...... B 51B60 H .55/.65 .65/1.10 .60/1.00 ...... 0005/.003 V 6118 H .15/.21 .40/.80 .40/.80 ...... 10/.15 6150 H .47/.54 .60/1.00 .75/1.20 ...... 15 min. B 81B45 H .42/.49 .70/1.05 .30/.60 .15/.45 .08/.15 .0005/.003

8617 H .14/.20 .60/.95 .35/.65 .35/.75 .15/.25 ...... 8620 H .17/.23 .60/.95 .35/.65 .35/.75 .15/.25 ...... 8622 H .19/.25 .60/.95 .35/.65 .35/.75 .15/.25 ...... 8625 H .22/.28 .60/.95 .35/.65 .35/.75 .15/.25 ...... 8627 H .24/.30 .60/.95 .35/.65 .35/.75 .15/.25 ...... 8630 H .27/.33 .60/.95 .35/.65 .35/.75 .15/.25 ...... B 86B30 H .27/.33 .60/.95 .35/.65 .35/.75 .15/.25 .0005/.003 8637 H .34/.41 .70/1.05 .35/.65 .35/.75 .15/.25 ...... 8640 H .37/.44 .70/1.05 .35/.65 .35/.75 .15/.25 ...... 8642 H .39/.46 .70/1.05 .35/.65 .35/.75 .15/.25 ...... 8645 H .42/.49 .70/1.05 .35/.65 .35/.75 .15/.25 ...... B 86B45 H .42/.49 .70/1.05 .35/.65 .35/.75 .15/.25 .0005/.003 8650 H .47/.54 .70/1.05 .35/.65 .35/.75 .15/.25 ...... 8655 H .50/.60 .70/1.05 .35/.65 .35/.75 .15/.25 ...... 8660 H .55/.65 .70/1.05 .35/.65 .35/.75 .15/.25 ...... 8720 H .17/.23 .60/.95 .35/.65 .35/.75 .20/.30 ...... 8740 H .37/.44 .70/1.05 .35/.65 .35/.75 .20/.30 ......

8822 H .19/.25 .70/1.05 .35/.65 .35/.75 .30/.40 ...... Si 9259 H .56/.64 .65/1.10 .45/.65 ...... 70/1.20 Si 9260 H .55/.65 .65/1.10 ...... 1.70/2.20

9310 H .07/.13 .40/.70 1.00/1.45 2.95/3.55 .08/.15 ...... B 94B15 H .12/.18 .70/1.05 .25/.55 .25/.65 .08/.15 .0005/.003 B 94B17 H .14/.20 .70/1.05 .25/.55 .25/.65 .08/.15 .0005/.003 B 94B30 H .27/.33 .70/1.05 .25/.55 .25/.65 .08/.15 .0005/.003 Unless specified Si 5 .15/.35, P 5 .030 max (SAE J1268), S 5 .040 max, Cu 5 .35 max, Ni 5 .25 max, Cr 5 .20 max, Mo 5 .06 max

10 Return to Table of Contents STANDARD CARBON AND CARBON BORON H STEELS Chemical Composition Ranges and Limits

SAE P S No. C Mn Max Max Si 1038 H .34/.43 .50/1.00 .030 .050 .15/.35 1045 H .42/.51 .50/1.00 .030 .050 .15/.35 1522 H .17/.25 1.00/1.50 .030 .050 .15/.35 1524 H .18/.26 1.25/1.75 .030 .050 .15/.35 1526 H .21/.30 1.00/1.50 .030 .050 .15/.35 1541 H .35/.45 1.25/1.75 .030 .050 .15/.35 15B21(1) .17/.24 .70/1.20 .030 .050 .15/.35 15B28H .25/.34 1.00/1.50 .030 .050 .15/.35 15B30H .27/.35 .70/1.20 .030 .050 .15/.35 15B35H(1) .31/.39 .70/1.20 .030 .050 .15/.35 15B37H(1) .30/.39 1.00/1.50 .030 .050 .15/.35 15B41H(1) .35/.45 1.25/1.75 .030 .050 .15/.35 15B48H(1) .43/.53 1.00/1.50 .030 .050 .15/.35 15B62H(1) .54/.67 1.00/1.50 .030 .050 .40/.60 For electric furnace steels P & S 5 .025 max and the prefix E is added (1) B 5 .0005/.003 RESTRICTED HARDENABILITY STEELS Chemical Composition Ranges

SAE No. C Mn Si Cr Ni Mo

15B21RH(1) .17/.22 .80/1.10 .15/.35 ...... 15B35RH(1) .33/.38 .80/1.10 .15/.35 ...... 3310RH .08/.13 .40/.60 .15/.35 1.40/1.75 3.25/3.75 ...... 4027RH .25/.30 .70/.90 .15/.35 ...... 20/.30 4118RH .18/.23 .70/.90 .15/.35 .40/.60 ...... 08/.15 4120RH .18/.23 .90/1.20 .15/.35 .40/.60 ...... 13/.20 4130RH .28/.33 .40/.60 .15/.35 .80/1.10 ...... 15/.25 4140RH .38/.43 .75/1.00 .15/.35 .80/1.10 ...... 15/.25 4145RH .43/.48 .75/1.00 .15/.35 .80/1.10 ...... 15/.25 4161RH .56/.64 .75/1.00 .15/.35 .70/.90 ...... 25/.35 4320RH .17/.22 .45/.65 .15/.35 .40/.60 1.65/2.00 .20/.30 4620RH .17/.22 .45/.65 .15/.35 ...... 1.65/2.00 .20/.30 4820RH .18/.23 .50/.70 .15/.35 ...... 3.25/3.75 .20/.30 50B40RH(1) .38/.43 .75/1.00 .15/.35 .40/.60 ...... 5130RH .28/.33 .70/.90 .15/.35 .80/1.10 ...... 5140RH .38/.43 .70/.90 .15/.35 .70/.90 ...... 5160RH .56/.64 .75/1.00 .15/.35 .70/.90 ...... 8620RH .18/.23 .70/.90 .15/.35 .40/.60 .40/.70 .15/.25 8622RH .20/.25 .70/.90 .15/.35 .40/.60 .40/.70 .15/.25 8720RH .18/.23 .70/.90 .15/.35 .40/.60 .40/.70 .20/.30 8822RH .20/.25 .75/1.00 .15/.35 .40/.60 .40/.70 .30/.40 9310RH .08/.13 .45/.65 .15/.35 1.00/1.40 3.00/3.50 .08/.15 Unless specified: Cu 5 .35 max, Ni 5 .25 max, Cr 5 .20 max, Mo 5 .06 max (1) B 5 .0005 /.003 11 Return to Table of Contents FORMERLY STANDARD STEELS Chemical Composition Ranges and Limits

SAE P S No. C Mn Max Max

1009 .15 max .60 max .040 .050 1033 .30/.36 .70/1.00 .040 .050 1034 .32/.38 .50/.80 .040 .050 1037 .32/.38 .70/1.00 .040 .050 1059 .55/.65 .50/.80 .040 .050 1062 .54/.65 .85/1.15 .040 .050 1064 .60/.70 .50/.80 .040 .050 1069 .65/.75 .40/.70 .040 .050 1075 .70/.80 .40/.70 .040 .050 1084 .80/.93 .60/.90 .040 .050 1085 .80/.93 .70/1.00 .040 .050 1086 .80/.94 .30/.50 .040 .050 1108 .08/.13 .50/.80 .040 .08/.13 1109 .08/.13 .60/.90 .040 .08/.13 1110 .08/.13 .30/.60 .040 .08/.13 1111 .13 max .60/.90 .07/0.12 .10/.15 1112 .13 max .70/1.00 .07/0.12 .16/.23 1113 .13 max .70/1.00 .07/0.12 .24/.33 1114 .10/.16 1.00/1.30 .040 .08/.13 1115 .13/.18 .60/.90 .040 .08/.13 1116 .14/.20 1.10/1.40 .040 .16/.23 1119 .14/.20 1.00/1.30 .040 .24/.33 1120 .18/.23 .70/1.00 .040 .08/.13 1123 .20/.27 1.20/1.50 .040 .06/.09 1139 .35/.43 1.35/1.65 .040 .13/.20 1145 .42/.49 .70/1.00 .040 .04/.07 1152 .48/.55 .70/1.00 .040 .06/.09 1211 .13 max .60/.90 .07/.12 .10/.15 1320 .18/.23 1.60/1.90 .040 .040 1345 .43/.48 1.60/1.90 .035 .040 1513 .10/.16 1.10/1.40 .030 .050 1518 .15/.21 1.10/1.40 .040 .050 1525 .23/.29 .80/1.10 .040 .050 1533 .30/.37 1.10/1.40 .040 .050 1534 .30/.37 1.20/1.50 .040 .050 1536 .30/.37 1.20/1.50 .040 .050 1544 .40/.47 .80/1.10 .040 .050 1545 .43/.50 .80/1.10 .040 .050 1546 .44/.52 1.00/1.30 .040 .050 1551 .45/.56 .85/1.15 .040 .050 1553 .48/.55 .80/1.10 .040 .050 1561 .55/.65 .75/1.05 .040 .050 1570 .65/.75 .80/1.10 .040 .050 1572 .65/.76 1.00/1.30 .040 .050 1580 .75/.88 .80/1.10 .040 .050 1590 .85/.98 .80/1.10 .040 .050

12 Return to Table of Contents FORMERLY STANDARD STEELS – continued Chemical Composition Ranges and Limits

SAE No. C Mn Cr Ni Mo Other 2317 .15/.20 .40/.60 ...... 3.25/3.75 ...... 2330 .28/.33 .60/.80 ...... 3.25/3.75 ...... 2340 .38/.43 .70/.90 ...... 3.25/3.75 ...... 2345 .43/.48 .70/.90 ...... 3.25/3.75 ...... 2512 .09/.14 .45/.60 ...... 4.75/5.25 ...... 2515 .12/.17 .40/.60 ...... 4.75/5.25 ...... 2517 .15/.20 .45/.60 ...... 4.75/5.25 ...... 3115 .13/.18 .40/.60 .55/.75 1.10/1.40 ...... 3120 .17/.22 .60/.80 .55/.75 1.10/1.40 ...... 3130 .28/.33 .60/.80 .55/.75 1.10/1.40 ...... 3135 .33/.38 .60/.80 .55/.75 1.10/1.40 ...... X3140 .38/.43 .70/.90 .70/.90 1.10/1.40 ...... 3140 .38/.43 .70/.90 .55/.75 1.10/1.40 ...... 3145 .43/.48 .70/.90 .70/.90 1.10/1.40 ...... 3150 .48/.53 .70/.90 .70/.90 1.10/1.40 ...... 3215 .10/.20 .30/.60 .90/1.25 1.50/2.00 ...... 3220 .15/.25 .30/.60 .90/1.25 1.50/2.00 ...... 3230 .25/.35 .30/.60 .90/1.25 1.50/2.00 ...... 3240 .35/.45 .30/.60 .90/1.25 1.50/2.00 ...... 3245 .40/.50 .30/.60 .90/1.25 1.50/2.00 ...... 3250 .45/.55 .30/.60 .90/1.25 1.50/2.00 ...... 3310 .08/.13 .45/.60 1.40/1.75 3.25/3.75 ...... 3311 .10/.16 .30/.50 1.30/1.60 3.25/3.75 .15 max ...... 3312 .08/.13 .45/.60 1.40/1.75 3.25/3.75 ...... 3316 .14/.19 .45/.60 1.40/1.75 3.25/3.75 ...... 3325 .20/.30 .30/.60 1.25/1.75 3.25/3.75 ...... 3335 .30/.40 .30/.60 1.25/1.75 3.25/3.75 ...... 3340 .35/.45 .30/.60 1.25/1.75 3.25/3.75 ...... 3415 .10/.20 .30/.60 .60/.95 2.75/3.25 ...... 3435 .30/.40 .30/.60 .60/.95 2.75/3.25 ...... 3450 .45/.55 .30/.60 .60/.95 2.75/3.25 ...... 4012 .09/.14 .75/1.00 ...... 15/.25 ...... 4024(1) .20/.25 .70/.90 ...... 20/.30 ...... 4028(1) .25/.30 .70/.90 ...... 20/.30 ...... 4032 .30/.35 .70/.90 ...... 20/.30 ...... 4042 .40/.45 .70/.90 ...... 20/.30 ...... 4053 .50/.56 .75/1.00 ...... 20/.30 ...... 4063 .60/.67 .75/1.00 ...... 20/.30 ...... 4068 .63/.70 .75/1.00 ...... 20/.30 ...... 4119 .17/.22 .70/.90 .40/.60 ...... 20/.30 ...... 4121(2) .18/.23 .75/1.00 .45/.65 ...... 20/.30 ...... 4125 .23/.28 .70/.90 .40/.60 ...... 20/.30 ...... 4131 .28/.33 .50/.70 .90/1.20 ...... 15/.25 ...... 4135 .33/.38 .70/.90 .80/1.10 ...... 15/.25 ...... 4147 .45/.50 .75/1.00 .80/1.10 ...... 15/.25 ...... 4161 .56/.64 .75/1.00 .70/.90 ...... 25/.35 ...... 4317 .15/.20 .45/.65 .40/.60 1.65/2.00 .20/.30 ...... 4337 .35/.40 .60/.80 .70/.90 1.65/2.00 .20/.30 ...... 4419 .18/.23 .45/.65 ...... 45/.60 ......

(1) S 5 .035/.050 (2) Formerly PS 24

13 Return to Table of Contents FORMERLY STANDARD STEELS – continued Chemical Composition Ranges and Limits

SAE No. C Mn Cr Ni Mo Other 4419H .17/.23 .35/.75 ...... 45/.60 ...... 4422 .20/.25 .70/.90 ...... 35/.45 ...... 4427 .24/.29 .70/.90 ...... 35/.45 ...... 4608 .06/.11 .25/.45 ...... 1.40/1.75 .15/.25 ...... 46B12(3) .10/.15 .45/.65 ...... 1.65/2.00 .20/.30 ...... 4615 .13/.18 .45/.65 ...... 1.65/2.00 .20/.30 ...... 4617 .15/.20 .45/.65 ...... 1.65/2.00 .20/.30 ...... X4620 .18/.23 .50/.70 ...... 1.65/2.00 .20/.30 ...... 4621 .18/.23 .70/.90 ...... 1.65/2.00 .20/.30 ...... 4621H .17/.23 .60/1.00 ...... 1.55/2.00 .20/.30 ...... 4626 .24/.29 .45/.65 ...... 70/1.00 .15/.25 ...... 4640 .38/.43 .60/.80 ...... 1.65/2.00 .20/.30 ...... 4715(4) .13/.18 .70/.90 .45/.65 .70/1.00 .45/.60 ...... 4718 .16/.21 .70/.90 .35/.55 .90/1.20 .30/.40 ...... 4720 .17/.22 .50/.70 .35/.55 .90/1.20 .15/.25 ...... 4812 .10/.15 .40/.60 ...... 3.25/3.75 .20/.30 ...... 4815 .13/.18 .40/.60 ...... 3.25/3.75 .20/.30 ...... 4817 .15/.20 .40/.60 ...... 3.25/3.75 .20/.30 ...... 5015 .12/.17 .30/.50 .30/.50 ...... 50B40(3) .38/.43 .75/1.00 .40/.60 ...... 50B44(3) .43/.48 .75/1.00 .40/.60 ...... 5045 .43/.48 .70/.90 .55/.75 ...... 5046 .43/.48 .75/1.00 .20/.35 ...... 50B50(3) .48/.53 .75/1.00 .40/.60 ...... 5060 .56/.64 .75/1.00 .40/.60 ...... 50B60(3) .56/.64 .75/1.00 .40/.60 ...... 5115 .13/.18 .70/.90 .70/.90 ...... 5117 .15/.20 .70/.90 .70/.90 ...... 5135 .33/.38 .60/.80 .80/1.05 ...... 5145 .43/.48 .70/.90 .70/.90 ...... 5145H .42/.49 .60/1.00 .60/1.00 ...... 5147 .46/.51 .70/.95 .85/1.15 ...... 5152 .48/.55 .70/.90 .90/1.20 ...... 5155 .51/.59 .70/.90 .70/.90 ...... 50100 .98/1.10 .25/.45 .40/.60 ...... V 6115 .10/.20 .30/.60 .80/1.10 ...... 15 min 6117 .15/.20 .70/.90 .70/.90 ...... 10 min 6118 .16/.21 .50/.70 .50/.70 ...... 10/.15 6120 .17/.22 .70/.90 .70/.90 ...... 10 min 6125 .20/.30 .60/.90 .80/1.10 ...... 15 min 6130 .25/.35 .60/.90 .80/1.10 ...... 15 min 6135 .30/.40 .60/.90 .80/1.10 ...... 15 min 6140 .35/.45 .60/.90 .80/1.10 ...... 15 min 6145 .43/.48 .70/.90 .80/1.10 ...... 15 min 6195 .90/1.05 .20/.45 .80/1.10 ...... 15 min W 71360 .50/.70 .30 max 3.00/4.00 ...... 12.00/15.00 71660 .50/.70 .30 max 3.00/4.00 ...... 15.00/18.00 7260 .50/.70 .30 max .50/1.00 ...... 1.50/2.00 (3) B 5 .0005/.003 (4) Formerly PS 30 14 Return to Table of Contents FORMERLY STANDARD STEELS – continued Chemical Composition Ranges and Limits

SAE No. C Mn Cr Ni Mo Other 8115 .13/.18 .70/.90 .30/.50 .20/.40 .08/.15 ...... 81B45(3) .43/.48 .75/1.00 .35/.55 .20/.40 .08/.15 ...... 8625 .23/.28 .70/.90 .40/.60 .40/.70 .15/.25 ...... 8627 .25/.30 .70/.90 .40/.60 .40/.70 .15/.25 ...... 8632 .30/.35 .70/.90 .40/.60 .40/.70 .15/.25 ...... 8635 .33/.38 .75/1.00 .40/.60 .40/.70 .15/.25 ...... 8637 .38/.43 .75/1.00 .40/.60 .40/.70 .15/.25 ...... 8641(5) .38/.43 .75/1.00 .40/.60 .40/.70 .15/.25 ...... 8642 .40/.45 .75/1.00 .40/.60 .40/.70 .15/.25 ...... 86B45(3) .43/.48 .75/1.00 .40/.60 .40/.70 .15/.25 ...... 8647 .45/.50 .75/1.00 .40/.60 .40/.70 .15/.25 ...... 8650 .48/.53 .75/1.00 .40/.60 .40/.70 .15/.25 ...... 8653 .50/.56 .75/1.00 .50/.80 .40/.70 .15/.25 ...... 8655 .51/.59 .75/1.00 .40/.60 .40/.70 .15/.25 ...... 8660 .56/.64 .75/1.00 .40/.60 .40/.70 .15/.25 ...... 8715 .13/.18 .70/.90 .40/.60 .40/.70 .20/.30 ...... 8717 .15/.20 .70/.90 .40/.60 .40/.70 .20/.30 ...... 8719 .18/.23 .60/.80 .40/.60 .40/.70 .20/.30 ...... 8735 .33/.38 .75/1.00 .40/.60 .40/.70 .20/.30 ...... 8740 .38/.43 .75/1.00 .40/.60 .40/.70 .20/.30 ...... 8742 .40/.45 .75/1.00 .40/.60 .40/.70 .20/.30 ...... 8745 .43/.48 .75/1.00 .40/.60 .40/.70 .20/.30 ...... 8750 .48/.53 .75/1.00 .40/.60 .40/.70 .20/.30 ...... 9250(6) .45/.55 .60/.90 ...... 9254(7) .51/.59 .60/.80 .60/.80 ...... 9255(6) .51/.59 .70/.95 ...... 9261(6) .55/.65 .75/1.00 .10/.25 ...... 9262(6) .55/.65 .75/1.00 .25/.40 ...... 9310 .08/.13 .45/.65 1.00/1.40 3.00/3.50 .08/.15 ...... 9315 .13/.18 .45/.65 1.00/1.40 3.00/3.50 .08/.15 ...... 9317 .15/.20 .45/.65 1.00/1.40 3.00/3.50 .08/.15 ...... 94B15 .13/.18 .75/1.00 .30/.50 .30/.60 .08/.15 ...... 94B17 .15/.20 .75/1.00 .30/.50 .30/.60 .08/.15 ...... 94B30(3) .28/.33 .75/1.00 .30/.50 .30/.60 .08/.15 ...... 9437 .35/.40 .90/1.20 .30/.50 .30/.60 .08/.15 ...... 9440 .38/.43 .90/1.20 .30/.50 .30/.60 .08/.15 ...... 94B40(3) .38/.43 .75/1.00 .30/.60 .30/.60 .08/.15 ...... 9442 .40/.45 .90/1.20 .30/.50 .30/.60 .08/.15 ...... 9445 .43/.48 .90/1.20 .30/.50 .30/.60 .08/.15 ...... 9447 .45/.50 .90/1.20 .30/.50 .30/.60 .08/.15 ...... 9747 .45/.50 .50/.80 .10/.25 .40/.70 .15/.25 ...... 9763 .60/.67 .50/.80 .10/.25 .40/.70 .15/.25 ...... 9840 .38/.43 .70/.90 .70/.90 .85/1.15 .20/.30 ...... 9845 .43/.48 .70/.90 .70/.90 .85/1.15 .20/.30 ...... 9850 .48/.53 .70/.90 .70/.90 .85/1.15 .20/.30 ...... V 438V12(3) .08/.13 .75/1.00 .40/.60 1.65/2.00 .20/.30 .03 min 438V14(3) .10/.15 .45/.65 .40/.60 1.65/2.00 .08/.15 .03 min (3) B 5 .0005/.003 Pages 4-15 reference steel grades and compositions (5) S 5 .04/.60 copyrighted by the American Iron and Steel Institute. (6) Si 5 1.80/2.20 (7) Si 5 1.20/1.60

15 Return to Table of Contents (2) 8630 3310 6150 4140 3316 9310 8740 4130 E4340 52100 SAE No. SAE No...... 4625M4

AMS 6280 6425 6250 6448 6415 6758 Nearest Equivalent Nearest ...... 6382/6349 6470/6472 6322/6325/6327 6440/6444/6447

Mo .15/.25 .30/.40 .35/.45 .20/.30 .15/.25 .08/.15 .20/.30 .15/.25 .06 max ......

Ni .40/.70 .40/.70 .25 max .25 max .25 max ...... 1.65/2.00 3.25/3.75 1.65/2.00 3.25/4.00 3.00/3.50

Cr .40/.60 .70/.90 .40/.60 .20 max .40 max. .75/1.20 .80/1.10 .80/1.10 1.40/1.80 1.25/1.75 1.25/1.75 1.00/1.40 1.30/1.60

Si .20/.35 .20/.40 .20/.35 .20/.35 .15/.35 .20/.35 .20/.35 .20/.35 .20/.35 .15/.35 .20/.35 .70/1.00 1.30/1.70

S .040 .025 .025 .040 .025 .025 .025 .025 .025 .025 .025 .025 .025 Max

P .035 .025 .025 .040 .025 .025 .025 .025 .025 .025 .025 .025 .025 Max Chemical Composition Ranges and Limits Ranges Chemical Composition

SELECTED MILITARY SPECIFICATIONS MILITARY SELECTED

Mn .70/.90 .50/.70 .45/.60 .70/.90 .65/.85 .45/.60 .40/.70 .40/.60 .25/.45 .75/1.00 .75/1.00 1.60/1.90 1.20/1.50

C .28/.33 .38/.43 .23/.28 .08/.13 .48/.53 .38/.43 .38/.43 .14/.19 .07/.13 .38/.43 .28/.33 .98/1.10 1.00/1.15

S S S S S S S S S S S S S or Tube Solid

(3)

(7) (4) (5) (7) (6) (1) MIL 5 .15 min .025 max if Basic Electric Furnace Steel is specifie Steel P & S 5 .025 max if Basic Electric Furnace Some MIL numbers cancelled. Replaced by AMS numbers. by Replaced numbers cancelled. Some MIL mill type. TimkenSteel Al 5 .020 max Al 5 .95/1.35 V Inactive/Cancelled S-5000 S-7393 S-5626 S-6709 S-50783 S-6049 S-6758 S-7420 S-6050 S-7108 S-8503 (1) (2) (3) (4) (5) (6) (7)

16 Return to Table of Contents (2) 8620 ...... SAE No. SAE No. 4330M4V1

AMS 6274 Nearest Equivalent Nearest ...... 6411/6427

Mo .35/.50 .15/.25 .55/.70

Ni .40/.70 ...... 1.65/2.00

Cr .75/.95 .40/.60 .95/1.25

Si .20/.35 .20/.35 .20/.35

S .040 .025 .020 Max

P Chemical Composition Ranges and Limits Ranges Chemical Composition .040 .025 .025 Max SELECTED MILITARY SPECIFICATIONS – continued SPECIFICATIONS MILITARY SELECTED

Mn .80/1.00 .70/1.00 .75/1.00

C 18/.23 .28/.33 .38/.45

S S S or Tube Solid

(10)

(5), (9) (5), (8) (1) MIL 5 .20/.30 5 .05/.10 V .025 max if Basic Electric Furnace Steel is specifie Steel P & S 5 .025 max if Basic Electric Furnace P & S 5 .015 max if consumable vacuum melted steel is specifie Some MIL numbers cancelled. Replaced by AMS numbers. by Replaced numbers cancelled. Some MIL mill type. TimkenSteel V S-46047 S-8699

S-8690 (1) (2) (5) (8) (9) (10)

17 Return to Table of Contents SAE 4617 4620 9310 9315 9317 8615 8617 8630 8630 8735 4615 4037 3310 94B17 4320H CV9310 43BV12 ...... Designations

V .03/.08 ......

Mo .08/.15 .15/.25 .20/.30 .20/.30 .20/.30 .08/.15 .08/.15 .08/.15 .20/.30 .15/.25 .15/.25 .08/.15 .15/.25 .15/.25 .20/.30 .20/.30 .20/.30 .06 max

Ni .40/.70 .40/.70 .35/.75 .30/.60 .40/.70 .40/.70 .40/.70 .25 max 1.65/2.00 1.65/2.00 1.55/2.00 3.00/3.50 3.00/3.50 3.00/3.50 3.00/3.50 1.65/2.00 1.65/2.00 3.25/3.75

Cr .35/.65 .40/.60 .40/.60 .40/.60 .35/.65 .30/.50 .40/.60 .40/.60 .40/.60 .20 max .20 max .20 max .20 max 1.00/1.40 1.00/1.40 1.00/1.40 1.00/1.40 1.25/1.75

Si .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .20/.40 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 Chemical Composition Ranges and Limits Ranges Chemical Composition

Mn .45/.65 .45/.65 .40/.70 .40/.70 .40/.70 .40/.70 .40/.70 .70/.90 .70/.90 .60/.95 .60/.95 .70/.90 .70/.90 .45/.65 .70/.90 .40/.70 .75/1.00 .75/1.00 SELECTED AMS ALLOY STEEL SPECIFICATIONS STEEL ALLOY AMS SELECTED

B 5 .0005/.005 P & S 5 .040 max

(3) (4) C .15/.20 .17/.22 .17/.23 .07/.13 .11/.17 .14/.20 .07/.13 .08/.13 .13/.18 .15/.20 .17/.23 .15/.20 .28/.33 .28/.33 .33/.38 .11/.17 .35/.40 .07/.13

(1) (2) (3) (3) (4) AMS 6294 6299 6300 6263 6264 6265 6266 6270 6272 6274 6275 6280 6281 6282 6290 6292 6250 6260 Number B 5 .001 max P & S 5 .015 max .35 max unless specifie Cu 5 .35 max unless P & S 5 .025 max, (1) (2)

18 Return to Table of Contents ® ®

(8) SAE 8740 8740 8750 9840 4640 8735 4130 4130 4135 4140 4140 81B40 4340 17-22-AS 17-22-AV HS220-07 8740 Mod Designations

V .75/.95 .20/.30 .25/.35 ......

Mo .20/.30 .15/.25 .15/.25 .15/.25 .15/.25 .35/.55 .40/.60 .08/.15 .20/.30 .20/.30 .20/.30 .20/.30 .20/.30 .40/.60 .45/.65 .20/.30 .20/.30 .15/.25

Ni .20/.40 .40/.70 .40/.70 .55/.85 .40/.70 .40/.70 .25 max .25 max .25 max .25 max .25 max .50 max. .25 max. .25 max. .85/1.15 1.65/2.00 1.65/2.00 1.85/2.25

Cr .30/.55 .40/.60 .40/.60 .55/.75 .40/.60 .70/.90 .70/.90 .40/.60 .20 max .80/1.10 .80/1.10 .80/1.10 .80/1.10 .80/1.10 .80/1.10 1.00/1.50 1.00/1.50 1.00/1.35

Si .55/.75 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .55/.75 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .40/.70 Chemical Composition Ranges and Limits Ranges Chemical Composition

SELECTED AMS ALLOY STEEL SPECIFICATIONS – continued SPECIFICATIONS STEEL ALLOY AMS SELECTED

Mn .60/.90 .70/.90 .40/.60 .70/.90 .65/.85 .45/.65 .40/.70 .60/.80 .40/.60 .60/.80 .75/1.00 .75/1.00 .75/1.00 .75/1.00 .75/1.00 .75/1.00 .75/1.00 .75/1.00

C .25/.30 .38/.43 .38/.43 .38/.43 .38/.43 .48/.53 .38/.43 .28/.33 .33/.38 .38/.43 .28/.33 .40/.50 .38/.43 .33/.38 .28/.33 .38/.43 .38/.43 .27/.33

(5) (6) (7) AMS 6322 6323 6324 6328 6342 6370 6302 6303 6304 6312 6320 6321 6371 6372 6381 6382 6407 6409 Number Cu 5 .50 max B 5 .0005/.005 S 5 .008 max P 5 .015 max, Special Aircraft Quality – Normalized and Tempered Quality – Normalized and Aircraft Special .35 max unless specifie Cu 5 .35 max unless P & S 5 .025 max, (5) (6) (7) (8)

19 Return to Table of Contents (12) SAE 4340 4140 6150 4337 D6-AC 52100 4350M CV4340 CV300M 4625M4 4335 Mod 4335M4V2 4330M4V1 CV52100 98B37 Mod 98BV40 Mod CV51100 Mod Designations

V .17/.23 .68/.15 .15/.30 .05/.10 .01/.06 .05/.10 .17/.23 .08/.15 ......

Mo .20/.30 .20/.30 .35/.45 .30/.40 .30/.50 .15/.25 .20/.30 .35/.50 .30/.40 .20/.30 .15/.25 .10 max .08 max .08 max .06 max .90/1.10 .90/1.10

Ni .40/.70 .40/.70 .25 max .25 max .25 max .25 max .70/1.00 .70/1.00 1.65/2.00 1.65/2.00 1.65/2.00 1.65/2.00 1.65/2.00 1.65/2.00 1.65/2.00 1.65/2.00 1.65/2.00

Cr .70/.90 .70/.90 .20/.40 .65/.90 .70/.95 .70/.90 .70/.90 .70/.90 .65/.90 .70/.90 .90/1.20 .90/1.15 .80/1.10 .75/1.00 .90/1.20 1.35/1.60 1.30/1.60

Si .15/.35 .15/.35 .40/.60 .15/.30 .15/.35 .15/.35 .50/.70 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .15/.30 .15/.35 1.30/1.70 1.45/1.80 Chemical Composition Ranges and Limits Ranges Chemical Composition

SELECTED AMS ALLOY STEEL SPECIFICATIONS – continued SPECIFICATIONS STEEL ALLOY AMS SELECTED

Mn .65/.90 .65/.85 .60/.90 .60/.90 .25/.45 .25/.45 .70/.90 .60/.90 .65/.85 .65/.85 .65/.85 .60/.80 .60/.90 .65/.85 .95/1.25 .75/1.00 1.20/1.50

C .38/.43 .38/.43 .23/.28 .32/.38 .42/.48 .48/.53 .40/.45 .35/.40 .38/.43 .49/.55 .28/.33 .32/.38 .45/.50 .28/.33 .75/1.00 .15/.35 .75/1.00 1.65/2.00 .35/.50 .05/.10 CV4330M4V1 .35/.40 .93/1.05 .98/1.10 .92/1.02

(9) (9) (10) (11) (11) (9) (10) (9) (9) (9) AMS 6415 6418 6419 6431 6440 6444 6448 6421 6422 6424 6427 6428 6430 6439 6411 6412 6414 6445 Number P & S 5 .010 max B 5 .0005/.005 Quality Aircraft Premium P & S 5 .015 max .35 max unless specifie Cu 5 .35 max unless P & S 5 .025 max, (9) (10) (11) (12)

20 Return to Table of Contents N Other Designations 135M, #3 or CV Nit #35 #3 or CV 135M, 135M, #3 or CV Nit #35 #3 or CV 135M, Nit #35 #3 or CV 135M,

Al .95/1.30 .95/1.30 .95/1.30 1.10/1.40

Mo .30/.40 .20/.30 .30/.40 .30/.40

Ni .25 max .25 max .25 max 3.25/3.75

Cr 1.40/1.80 1.40/1.80 1.00/1.25 1.40/1.80

NITRIDING STEELS

Si .20/.40 .20/.40 .20/.40 .20/.40 Chemical Composition Ranges and Limits Ranges Chemical Composition

Mn .50/.80 .50/.80 .50/.70 .50/.80

C .38/.43 .38/.43 .21/.26 .38/.43

(1)

AMS 6475 6470 6471 6472 Number .035 max, S 5 .040 max P 5 .035 max, (1)

21 Return to Table of Contents (1)

.60 max 5 Others ...... 5 0.10 max 5 0.10 max N 5 0.25 max N 5 0.25 max N 5 0.10 max N 5 0.10 max N 5 0.10 max N N Mo 5 2.00/3.00 Mo 5 2.00/3.00 Mo 5 2.00/3.00 Zr, Mo Mo Zr,

Ni 4.00/6.00 6.00/8.00 3.50/5.50 8.00/10.00 8.00/10.00 8.00/10.00 8.00/10.50 8.00/11.00 8.00/12.00 8.00/13.00 8.00/11.00 19.00/22.00 10.00/14.00 11.00/14.00 10.00/14.00 10.50/13.00 10.00/12.00 12.00/15.00 19.00/22.00 19.00/22.00

Cr 17.00/19.00 17.00/19.00 16.00/18.00 17.00/19.00 16.00/18.00 16.00/18.00 16.00/18.00 16.00/18.00 18.00/20.00 18.00/20.00 18.00/20.00 18.00/20.00 19.00/21.00 24.00/26.00 17.00/19.00 23.00/26.00 18.00/20.00 17.00/19.00 22.00/24.00 24.00/26.00

S .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 Max .15 min

P .045 .200 .060 .045 .045 .060 .045 .045 .040 .045 .045 .040 .045 .040 .040 .045 .045 .045 .045 .040 Max

Si Chemical Composition Ranges and Limits Ranges Chemical Composition .75 .75 .75 .75 .75 .75 .75 .75 .75 .75 .75 1.00 1.00 1.00 1.00 1.00 1.00 1.50 Max AUSTENITIC STAINLESS STEELS STEELS STAINLESS AUSTENITIC 2.00/3.00 1.50/3.00

Mn 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 Max 5.5/7.5 7.5/10.0

C .15 .15 .15 .15 .15 .08 .08 .03 .15 .08 .08 .03 .12 .08 .20 .25 .15 .25 .035 Max .04/.10

Type Number 303 301 302 302B 202 316 TP316 316L 201 304 TP304 304L TP304L TP304H 305 308 309 310 TP310 314 At producers option, reported only when intentionally added. reported option, At producers (1)

22 Return to Table of Contents

5 1.00 max 5 1.00 max 5 8 3 C min 5 8 3 C min 5 10 3 C min 5 10 3 C min 5 10 3 C min 5 10 3 C min Others 5 .10 max ...... 5 .10 max 5 1.00 max 5 1.00 max Ta Ta 1 Ta 1 Ta Mo 5 2.00/3.00 Mo 5 2.00/3.00 Mo 5 3.00/4.00 Cb Cb Cb 1 Ta Cb 1 Ta Cb 1 Ta Cb 1 Ta Cb 1 Ta Cb 1 Ta C min, .60 max 5 3 C min, Ti .60 max 5 3 C min, Ti .60 max 5 4 3 C min, Ti

Ni 9.00/12.00 9.00/13.00 9.00/13.00 9.00/13.00 9.00/13.00 9.00/13.00 9.00/13.00 9.00/13.00 9.00/13.00 10.00/15.00 11.00/14.00 11.00/14.00 17.00/19.00 14.00/16.00

Cr ...... 16.00/18.00 17.00/19.00 17.00/20.00 17.00/19.00 17.00/20.00 17.00/20.00 11.50/13.50 18.00/20.00 17.00/20.00 15.00/17.00 17.00/20.00 17.00/19.00 17.00/20.00

S .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 Max

P .040 .040 .040 .045 .040 .040 .045 .040 .040 .045 .045 .040 .045 .040 Max Chemical Composition Ranges and Limits Ranges Chemical Composition AUSTENITIC STAINLESS STEELS – continued STEELS STAINLESS AUSTENITIC

Si .75 .75 .75 .75 .75 .75 .75 .75 .75 1.00 1.00 1.00 1.00 1.00 Max

Mn 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 Max

C .08 .08 .08 .08 .08 .08 .08 .08 .08 .035 Max .04/.10 .04/.10 .04/.10 .04/.10

Tubular Products Tubular Type Grades for high temperature service. for high temperature 5 Grades 5 Number TP316L TP316H TP317 321 TP321 TP321H 347 TP347 TP348 384 385

TP347H 348 TP348H

H TP

23 Return to Table of Contents (1) (1) 5 .60 max Others ...... AI 5 .10/.30 AI 5 .10/.30 Mo 5 .40/.65 Mo 5 .40/.65 Cu 5 .90/1.25 Mo 5 .75 max Mo 5 .75 max Mo 5 .75 max Turbine Quality Turbine Mo 5 .60 max Zr, Mo Mo Zr,

Ni ...... 50 max .50 max .75 max .50 max .50 max .60 max ...... 1.25/2.50 1.25/2.50

Cr 4.00/6.00 4.00/6.00 12.00/14.00 11.50/13.50 18.00/23.00 11.50/13.50 16.00/18.00 16.00/18.00 11.50/13.50 16.00/18.00 16.00/18.00 11.50/13.50 12.00/14.00 16.00/18.00 11.50/14.50 12.00/14.00 15.00/17.00 11.50/13.00

S .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 .030 Max .150 min .150 min

P .060 .040 .040 .040 .040 .040 .060 .040 .040 .040 .040 .040 .030 .040 .040 .040 .040 .040 Max Chemical Composition Ranges and Limits Ranges Chemical Composition

CHROMIUM STAINLESS STEELS CHROMIUM STAINLESS

Si .75 .75 .75 .75 .50 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Max

Mn 1.25 1.00 1.00 1.00 1.00 1.00 1.25 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Max

C .15 .10 .15 .20 .15 .12 .15 .12 .08 .15 .08 .20 Max .75/.95 .60/.75 Over .10 Over .15 Over .15 .95/1.20

Type Number 416 502 414 TP443 501 TP410 430F 440C 410 430 440B TP405 TP420 440A 403 405 420 431 At producer’s option, reported only when intentionally added. reported option, At producer’s Prefix TP denotes tubular products. Suffi machining grade. F denotes a free for the same grade. carbon ranges B and C denote differing A, es (1)

24 Return to Table of Contents

V ...... 08 max .08 max .08 max

Mo .44/.65 .44/.65 .44/.65 .44/.65 .44/.65 ...... 15 max .15 max .15 max

Ni ...... 40 max .40 max .40 max

Cr ...... 40 max .40 max .40 max .80/ 1.25 1.00/1.50 1.00/1.50

Si .10/.60 .10/.50 .10/.50 .10/.50 .10 min .10 min .10 min .25 max .50/1.00

Mn .30/.80 .27/.93 .30/.80 .27/.63 .30/.80 .30/.80 .30/.80 .29/1.06 .29/1.06 Chemical Composition Ranges and Limits Ranges Chemical Composition SELECTED ASTM SPECIFICATIONS ASTM SELECTED

C .10/.20 .10/.20 .06/.18 .10/.20 .15/.25 .25 max .30 max .35 max .14 max

A A C B T1 T1a T1b F12 F11 Grade

(1) ASTM A106 A182 A192 A209 Number The combined elements of Cr, Ni, Mo, V and Cu must not exceed 1% and Cu must not exceed V Mo, Ni, combined elements ofThe Cr, See current ASTM specifications for P & S limitations ASTM See current (1)

25 Return to Table of Contents 5 1.00 max C min, 5 10 3 C min, .18/.25 Others ...... 5 .10 max ...... Ta Ta Ta 1 5 8 3 C min,1.00 max Ta Cb Cb 1 C min, .70 max 5 4 3 C min, Ti C min, .60 max 5 4 3 C min, Ti Cb 1

Mo .44/.65 .45/.65 .90/1.10 .45/.65 .45/.65 .45/.65 .44/.65 .44/.65 .87/1.13 .85/1.05 ...... 80/1.06 2.00/3.00

Ni ...... 40 max 9.00/13.00 8.00/11.00 9.00/13.00 9.00/13.00 19.00/22.00 11.00/14.00

Cr ...... 80/1.25 6.00/8.00 1.90/2.60 8.00/9.00 4.00/6.00 4.00/6.00 4.00/6.00 2.65/3.35 2.15/2.85 1.00/1.50 8.00/10.00 17.00/20.00 18.00/20.00 24.00/26.00 16.00/18.00 17.00/20.00 17.00/20.00

Si .20/.50 .50 max .10 min .10 min .50/1.00 .25/1.00 .50/1.00 .50 max .75 max .50 max .50 max .75 max .75 max .75 max .75 max .75 max .50 max .50/1.00 1.00/2.00 Chemical Composition Ranges and Limits Ranges Chemical Composition SELECTED ASTM SPECIFICATIONS – continued SPECIFICATIONS ASTM SELECTED

Mn .30/.60 .30/.60 .30/.60 .30/.60 .30/.60 .30/.60 .30/.60 .30/.60 .30/.60 .30/.60 .30/.61 .93 max .29/1.06 2.00 max 2.00 max 2.00 max 2.00 max 2.00 max 2.00 max

C .05/.15 .05/.15 .08/.12 .04/.10 .04/.10 .04/.10 .04/.10 .04/.10 .05/.15 .05/.15 .05/.15 .15 max .15 max .15 max .12 max .08 max .15 max .27 max .35 max

(4) (4) (4) (4) (4)

(2) (2) (2) (3)

(2) (2) (2) C T4 A1 T5c T5b T12 T7 T5 T9 T22 T21 T91 T11 TP348 Grade TP310H TP316H TP321H TP347H TP304H

These grades also included in ASTM SpecificationsASTM also included in grades These A335. A213 and A213 A210 ASTM .03/.07, Al 5 .04 max N 5 .03/.07, Cb 5 .06/.10, SpecificationsASTM also included in grades These A376. A312 and Number specifications for P & S limitations ASTM See current (2) (3) (4)

26 Return to Table of Contents Mo Other ...... 20/.30 .35/.55 .25/.35 .45/.60 ...... Nb=.020/.035

.020/.035 .020/.030 Ni

...... 25 max. 1.65/2.00 1.85/2.25

Cb ...... 020/.035

Mo Cr .20/.25 .20/.25 .40/ .60 ...... 1.00/1.35 1.90/2.40 3.00/3.50

.10/.25 .10/.25

.15/.30 .40/.70 .50/.80 .15/.30 ......

Cr 1.00/1.10 1.00/1.10

Si Chemical Composition Ranges and Limits Ranges Chemical Composition and Limits Ranges Chemical Composition .20/.35 .20/.35 Mn .30/ .60 .45/ .65 .60/ .80 .40/ .60 .80/1.20 TIMKENSTEEL HEAVY WALL STEELS WALL HEAVY TIMKENSTEEL

Mn .50/.60 TIMKENSTEEL TUBULAR HOLLOW DRILL STEELS DRILL TUBULAR HOLLOW TIMKENSTEEL .90/1.00

C .72/.85 .17/.22 .27/.33 .25/.31 .23/.28

C .40/.43 .29/.33

® ® ® ® ®

Type TDS-10 TDS-30 TDS-50 TDS-70 TDS-90 Type 4140HW 4130HW

27 Return to Table of Contents B ...... 003 added Other 5 .030 max S P 5 .020 max P 5 .040 max P 5 .030 max

.03/.08 ...... Cb .02/.05 .02/.05 .02/.05 ......

Mo .15/.25 .20/.30 Mo .65/.75 .75/.85 .65/.75 ...... 90/1.10

.40/.70 Ni 1.55/2.00 .50/.70 .15 max ......

.65/.90 .70/.90

Cr .70/.90 1.20/1.50 1.00/1.50 8.00/10.00 12.50/14.00 12.00/14.00

.15/.30 .15/.30

Si .20/.40 .15/.35 Chemical Composition Ranges and Limits Ranges Chemical Composition Chemical Composition Ranges and Limits Ranges Chemical Composition ...... 25/1.00 1.00 max 1.00 max

TIMKENSTEEL OIL COUNTRY STEELS COUNTRY OIL TIMKENSTEEL

.60/ .80 1.00/1.30 Mn .60/.90 .30/.60 .90/1.10 .90/1.10 1.00 max 1.00 max TIMKENSTEEL WELDABLE HIGH STRENGTH STEELS HIGH STRENGTH WELDABLE TIMKENSTEEL

C .13/.21 .20/.27 .18/.22 .26/.32 .26/.32 .26/.32 .15 max .15 max

TM TM

Type Type

WHS 130 WHS 100 420 Mod Impact 7 Impact 8 410 Type Impact 10 9Cr1Mo .015 max, S 5 .005 max P 5 .015 max,

28 Return to Table of Contents

V Mo .05/.10 .17/.23 .17/.23 ...... 25/.35 ......

.35/.55 .35/.45 .35/.50 .30/.40 .30/.40 Ni .25/.40 ......

Ni 1.85/2.25 1.65/2.00 1.65/2.00 1.65/2.00 1.65/2.00

Cr .70/.95 .90/1.20 1.00/1.30 1.00/1.30

Cr .20/.40 .65/.90 .65/.90 .75/1.00 1.00/1.35

Si .15/.35 .15/.35 .15/.35 .15/.35

Si .40/.70 .15/.35 .15/.35 .40/.60 1.30/1.70

Chemical Composition Ranges and Limits Ranges Chemical Composition and Limits Ranges Chemical Composition Mn

.90/1.20 1.20/1.50 1.10/1.40 1.10/1.45 TIMKENSTEEL HIGH STRENGTH STEELS HIGH STRENGTH TIMKENSTEEL Mn .60/.80 .60/.80 .60/.90 .75/1.00 1.20/1.50 TIMKENSTEEL VACUUM CARBURIZING STEELS CARBURIZING VACUUM TIMKENSTEEL

C .22/.26 .18/.23 .17/.23 .18/.23 C .27/.33 .23/.28 .28/.33 .32/.38 .32/.38

Type Type VacTec400 VacTec275L VacTec325L HS-220-07 HS-220-18 HS-220-27 HS-220-28 HS-220-30 VacTec325LD

29 Return to Table of Contents Other Cr = .15/.45 N = .008/.015 N = .008/.015

Si ...... 0.40/0.50 0.20/0.30 0.30/0.50 0.50/0.70 0.50/0.65 0.15/0.35 0.45/0.65 0.45/0.65

S ...... 0.010 max. 0.045 max. 0.025/0.050 0.005/0.020 0.030/0.050 0.030/0.050 0.030/0.050 0.030/0.045 0.020/0.035 0.025/0.035 0.040/0.060 0.040/0.060

V 0.05/0.10 0.06/0.10 0.07/0.11 0.10/0.20 0.07/0.18 0.13/0.23 0.13/0.18 0.08/0.18 0.08/0.18 0.06/0.10 0.07/0.09 0.10/0.14 0.04/0.10 0.10/0.18 0.10/0.18 0.08/0.12 0.08/0.12 0.08/0.12 0.05/0.20 0.08/0.18 0.10/0.20

Mn 1.20/1.60 1.20/1.40 1.40/1.60 1.30/1.70 0.90/1.30 1.00/1.30 0.90/1.20 1.30/1.60 1.30/1.50 1.35/1.45 1.35/1.45 1.30/1.50 1.20/1.40 1.10/1.30 1.10/1.30 1.30/1.50 1.35/1.45 0.70/0.85 0.70/1.00 1.05/1.25 1.15/1.35 Chemical Composition Ranges and Limits Ranges Chemical Composition TIMKENSTEEL MICROALLOY STEELS MICROALLOY TIMKENSTEEL

C 0.10/0.18 0.16/0.20 0.16/0.20 0.16/0.22 0.28/0.33 0.26/0.30 0.28/0.32 0.28/0.33 0.28/0.33 0.32/0.36 0.32/0.36 0.31/0.35 0.36/0.40 0.36/0.41 0.36/0.41 0.36/0.40 0.38/0.43 0.53/0.57 0.52/0.57 0.52/0.57 0.52/0.57

Type 2W60 MicroTec 2W65 MicroTec 2W70 MicroTec 2W75 MicroTec 3W70 MicroTec 3W75 MicroTec 3W75A MicroTec 3M80 MicroTec 3M80A MicroTec 3M80B MicroTec 3M80C MicroTec 3M85 MicroTec 4M85 MicroTec 4M90 MicroTec 4M90A MicroTec 4M95 MicroTec 4M95A MicroTec 5H85 MicroTec 5H90 MicroTec 5H95 MicroTec 5H95A MicroTec

30 Return to Table of Contents

5 9 7 5c 22 5b 11 91 No No AMS 6302 6303 ASTM ASTM ......

V 1 Mo .20/.30 .20/.30 .75/.95 .45/.65 .44/.65 .45/.65 .45/.65 .45/.65 .44/.65 .09/1.10 .85/1.05 .87/1.13 .90/1.10

.40/.60 .40/.60 .40/.60 Cr .44/.65 .80/1.25 4.00/6.00 1.90/2.60 4.00/6.00 4.00/6.00 4.00/6.00 6.00/8.00 1.00/1.50 8.00/9.50 8.00/10.00

TEMPERATURE SERVICE TEMPERATURE

1.00/1.50 1.00/1.50 1.00/1.50 Si .20/.50 .50 max .50 max .50 max .50 max ...... 50/1.00 .25/1.00 .50/1.00 1.00/2.00 1.00/1.50

.55/.75 .55/.75 .55/.75 S .030 .030 .030 .030 .030 .030 .030 .010 .030 Max .10/.50 ......

S .040 .040 .040

Max

P .03/.07, Al 5 .04 max N 5 .03/.07, 5 .06/.10, Cb 5 .18/.25, V Ni 5 .40 max, .030 .030 .030 .030 .030 .030 .030 .020 .045 .030 Max (3) ...... Chemical Composition Ranges Chemical Composition

P Chemical Composition Range and Limits Range Chemical Composition .040 .040 .040 Max

Mn .045

.30/.60 .30/.60 .30/.60 .30/.60 .30/.60 .30/.60 .30/.60 .30/.60 .30/.60 .30/.60

C min, .70 max 5 4 3 C min, Mn Ti (2) .45/.65 .45/.65 .60/.90 TIMKENSTEEL HIGH TEMPERATURE ENGINEERING STEELS TEMPERATURE HIGH TIMKENSTEEL

TIMKENSTEEL ALLOY STEELS FOR HIGH STEELS ALLOY TIMKENSTEEL C

.08/.12 .30/.80

.15 max .15 max .15 max .15 max .15 max .15 max .15 max .15 max .12 max C .41/.48 .28/.33 .25/.30

(2)

® ® .10/.20 ® (1) Type

Type

® (3) 5 Cr 1/2 Mo+Ti 5 Cr 1/2 Mo T9 .50Mo 2 1/4 Cr 1 Mo 5 Cr 1/2 Mo+Si 5 Cr 1 Mo+Si 7 Cr 1/2 Mo 9 Cr 1 Mo DM-2 DM 17-22-AS 17-22-AV 17-22-A .50 Mo steel also available with .08/.14 C. .50 Mo steel also available with .08/.14 C. (1)

31 Return to Table of Contents V .25/.50 ...... 90/1.10 1.13/1.33 Mo .35/.45 .50/.65

Mo .08/.15 .20/.30 .45/.60 .25/.35 ...... 75 max. .90/1.10 4.00/5.00 4.00/4.50 4.00/4.50 1.20/1.40

Ni 1.65/2.00 2.00/2.50 Through hardening steel can be air quenched. hardening Through ...... 25 max. .10 max. 1.30/1.65 3.20/3.60 2.75/3.25 (7)

.40/.60 .90/1.20 .90/1.20 .90/1.20 3.75/4.25 1.30/1.60 4.00/4.25 1.10/1.50 1.10/1.50 1.40/1.80 1.25/1.65 1.25/1.65

16.00/18.00 Cr .70/.90 .80/1.20

Si .15/.35 .15/.35 .15/.35 .10/.25 .15/.35 .15/.35 .45/.75 .50/.80 .40/.60 .25 max. .85/1.20 .90/1.25 1.00 max.

Chemical Composition Ranges Chemical Composition Mn

.70/1.00 .70/1.00 Mn .50/.80 .25/.45 .15/.35 .65/.90 .60/.80 .40/.70 .40/.60 .35 max. .90/1.20 Chemical Composition Ranges and Limits Ranges Chemical Composition 1.00 max. 1.05/1.35 1.05/1.35 1.40/1.70 Through hardening steel for service up to 600 F. steel for service up to 600 F. hardening Through steel for service up to 600 F. Carburizing steel for service up to 1000 F. Carburizing (6) (5) (4) TIMKENSTEEL SPECIAL BEARING STEELS SPECIAL TIMKENSTEEL

.70/.80 .77/.85 .11/.15 .16/.22 .10/.16 .95/1.20 .89/1.01 .93/1.05 .95/1.10 .95/1.10 .90/1.05 .85/1.00 .95/1.10 C

.30/.38 .30/.38 TIMKENSTEEL TUBING FOR POLYETHYLENE PRODUCTION TUBING FOR POLYETHYLENE TIMKENSTEEL

(3)

(3) (3)

Type

TM (6) (2) TM (5)

TM (4)

(1) (7) ® Type Type

4333M4 4333M6 440C TBS-9 TBS-600 CBS-600 CBS1000M CBS-50NiL M-50 ASTM-A485-1(#1 Mod.) ASTM-A485-1(#1 TBA-2 ASTM-A485-4(T-2) ASTM-A485-2(#2 Mod.) ASTM-A485-2(#2 ASTM-A485-3(T-1) 52100 52100 shown for reference purposes only 52100 shown for reference S .010 P .015, .25, W .25, Co Max Cu .10, steels. Deep hardening (1) (2) (3)

32 Return to Table of Contents USA - EUROPEAN - JAPANESE NEAR EQUIVALENT GRADES

USA European Japanese 1045 C45 S45C 4118 18CrMo4 SCM418 4130 30CrMo4 SCM430 4140 42CrMo4 SCM440 4340 41NiCrMo7-3-2 SNCM439 8620 21NiCrMo2-2 SNCM220 8640 40NiCrMo2-2 SNCM240 5120 20Cr3 SCr420 5130 28Cr4 SCr430 5140 41Cr4 SCr440 52100 100Cr6 SUJ2

33 Return to Table of Contents Ni Max Mo Max EN 10083 Chemical Composition, % Chemical Composition, EUROPEAN INDUSTRIAL STANDARDS STANDARDS EUROPEAN INDUSTRIAL CARBON AND ALLOY STEELS, SELECTED CHEMISTRIES CHEMISTRIES SELECTED STEELS, ALLOY AND CARBON .42/.50 .40 .50/.80 .025 .035 .40/.60 ...... 17/.24.32/.39.37/.44.42/.50 .40.47/.55 .40.52/.60 .40.57/.65 .40 .40/.70.25/.32 .40 .50/.80.35/.42 .40 .50/.80 .40 .030 .50/.80 .40 .045 .60/.90 .40 .045 .60/.90 .045 .60/.90 .035 1.30/1.65 .030 .045 .045 .50/.80 .045 .045 .40 max .030 .045 .40 max .035 .025 .40 max .045 .40 max .10 .045 .035 .40 max .10 .40 max .10 .035 .40 max .10 .40 max .40 .10 .40 .10 .40/.60 .40 .10 .10 .40 ...... 40 .40 .40 ...... 40 (5) (1)(5) (1)(5) (2)(4)(5) (2)(4)(5) (2)(4)(5) (2)(4)(5) (2)(4)(5) Steel GradeSteel C Si Max Mn P Max S Max Cr R has the same chemical composition except %S is .020/.040. R has the same chemical composition except R has the same chemical composition except %P is .030 max and %S .020/.040. R has the same chemical composition except %S is .035 max. E has the same chemical composition except %P is .030 max and %S .035 max. E has the same chemical composition except Cr+Mo+Ni = 0.63 max C22E 46Cr2 C35 C40 C45 C50E C55 C60 28Mn6 38Cr2 (1) (2) (3) (4) (5)

34 Return to Table of Contents V Cr Mo Ni EN 10083 Chemical Composition, % Chemical Composition, EUROPEAN INDUSTRIAL STANDARDS STANDARDS EUROPEAN INDUSTRIAL CARBON AND ALLOY STEELS, SELECTED CHEMISTRIES – continued CHEMISTRIES SELECTED STEELS, ALLOY AND CARBON .30/.37 .40 .60/.90 .025 .035 max .90/1.20 ...... 34/.41 .40 .60/.90 .025 .035 max .90/1.20 ...... 38/.45 .40 .60/.90 .025 .035 max .90/1.20 ...... Steel GradeSteel C Si Max Mn P Max S 34Cr4 34CrS4 .30/.37 .40 .60/.90 .025 .020/.040 .90/1.20 ...... 37Cr4 37CrS4 .34/.41 .40 .60/.90 .025 .020/.040 .90/1.20 ...... 41Cr4 41CrS4 .38/.45 .40 .60/.90 .025 .020/.040 .90/1.20 ...... 25CrMo4 .22/.29 .40 .60/.90 .025 .035 max .90/1.20 .15/.30 ...... 25CrMoS4 .22/.29 .40 .60/.90 .025 .020/.040 .90/1.20 .15/.30 ...... 34CrMo4 .30/.37 .40 .60/.90 .025 .035 max .90/1.20 .15/.30 ...... 34CrMoS4 .30/.37 .40 .60/.90 .025 .020/.040 .90/1.20 .15/.30 ...... 42CrMo4 .38/.45 .40 .60/.90 .025 .035 max .90/1.20 .15/.30 ...... 42CrMoS4 .38/.45 .40 .60/.90 .025 .020/.040 .90/1.20 .15/.30 ...... 50CrMo4 .46/.54 .40 .50/.80 .025 .035 max .90/1.20 .15/.30 ...... 34CrNiMo6 .30/.38 .40 .50/.80 .025 .035 max 1.30/1.70 .15/.30 1.30/1.70 ...... 30CrNiMo8 .26/.34 .40 .50/.80 .025 .035 max 1.80/2.20 .30/.50 1.80/2.20 ...... 51CrV4 .47/.55 .40 .70/1.10 .025 .025 max .90/1.20 ...... 10/.25

35 Return to Table of Contents Ni Mo (1) EN 10084 Chemical Composition, % Chemical Composition, EUROPEAN INDUSTRIAL STANDARDS STANDARDS EUROPEAN INDUSTRIAL Si Max Mn P Max S Max Cr CARBON AND ALLOY STEELS, SELECTED CHEMISTRIES CHEMISTRIES SELECTED STEELS, ALLOY AND CARBON .07/.13.12/.18 .40 .40 .30/.60 .30/.60 .035 .035 .035 .035 ...... 14/.20 .40 .60/.90 .025 .035 .70/1.00 ...... 24/.31 .40 .60/.90 .025 .035 .90/1.20 ...... 14/.19 .40 1.00/1.30 .025 .035 .80/1.10 ...... 17/.22 .40 1.10/1.40 .025 .035 1.00/1.30 ...... 17/.23 .40 .70/1.00 .025 .035 .30/.60 .40/.50 ...... 13/.19 .40 .70/1.00 .025 .035 .60/1.00 ...... 80/1.10 .14/.20 .40 .40/.70 .025 .035 .60/.90 ...... 3.00/3.50 (2) (2) Steel GradeSteel C Alloy steels intended for direct quenching shall contain at least 0.02% by weight of quenching shall contain at least Alloy steels intended for direct metallic (acid soluble) aluminum. %S is .020/.040 R has the same chemical composition except (1) (2) C15E 17Cr3 C10E 28Cr4 16MnCr5 20MnCr5 20MoCr4 16NiCr4 15NiCr13 18CrNiMo7-6 .15/.21 .40 .50/.90 .025 .035 1.50/1.80 .25/.35 1.40/1.70

36 Return to Table of Contents Mo Ni Max DIN 17230 Chemical Composition % Chemical Composition Mn P Max S Max Cr EUROPEAN INDUSTRIAL STANDARDS STANDARDS EUROPEAN INDUSTRIAL Si THROUGH HARDENING BEARING STEELS THROUGH HARDENING BEARING STEELS .90/1.05.90/1.05 .15/.35 .15/.35 .25/.45 .25/.45 .030 .030 .025 .025 .40/.60 1.35/1.60 .10 max .10 max .30 .30 Steel GradeSteel C 100 Cr2 100 Cr6 100 CrMn6 .90/1.05 .50/.70 1.00/1.20 .030 .025 1.40/1.65 .10 max .30 100 CrMo7 .90/1.05 .20/.40 .25/.45 .030 .025 1.65/1.95 .15/.25 .30 100 CrMo7 3 .90/1.05 .20/.40 .60/.80 .030 .025 1.65/1.95 .20/.35 .30 100 CrMnMo 8 .90/1.05 .40/.60 .80/1.10 .030 .025 1.80/2.05 .50/.60 .30

37 Return to Table of Contents .30 max.30 max .20 max.30 max .20 max .20 max.30 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max .35 max .20 max .20 max .35 max .20 max .35 max .35 max ...... 030 max.030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .035 max Chemical Composition, % Chemical Composition, CARBON STEELS AND BORON STEELS AND BORON STEELS STEELS CARBON JAPANESE AUTOMOTIVE STANDARDS STANDARDS AUTOMOTIVE JAPANESE C Si Mn P S B Cu Ni Cr Ni + Cr Steel Grade 234 S 12 C5 S 15 C6 .10/.15 S 17 C7 .13/.18 S 20 C .15/.358 .15/.20 S 22 C .15/.359 .18/.23 S 25 C .30/.60 .15/.35 .20/.25 S 28 C .30/.60 .15/.35 .22/.28 S 30 C .30/.60 .15/.35 .25/.31 .30/.60 .15/.35 .27/.33 .30/.60 .15/.35 .30/.60 .15/.35 .60/.90 .60/.90 1 S 10 C .08/.13 .15/.35 .30/.60 101112 S 33 C13 S 35 C14 .30/.36 S 38 C15 .32/.38 S 40 C .15/.3516 .35/.41 S 43 C .15/.35 .37/.43 S 45 C .60/.90 .15/.35 .40/.46 S 48 C .60/.90 .15/.35 .42/.48 .60/.90 .15/.35 .45/.51 .60/.90 .15/.35 .60/.90 .15/.35 .60/.90 .60/.90 No.

38 Return to Table of Contents .30 max.30 max .20 max.30 max .20 max .20 max.30 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max.30 max .35 max .20 max .20 max .35 max .20 max .20 max .35 max .20 max .35 max .35 max ...... 0005 min .0005 min .0005 min .0005 min .0005 min .0005 min .0005 min .0005 min .0005 min .0005 min .0005 min .0005 min .0005 min .030 max.030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .030 max .035 max .035 max C Si Mn P S B Cu Ni Cr Ni + Cr .18/.23.22/.28 .15/.35.25/.31 .15/.35.27/.33 .30/.60 .15/.35.30/.36 .30/.60 .15/.35.32/.38 .60/.90 .15/.35.35/.41 .60/.90 .15/.35.37/.43 .60/.90 .15/.35.40/.46 .60/.90 .15/.35.42/.48 .60/.90 .15/.35.45/.51 .60/.90 .15/.35.47/.53 .60/.90 .15/.35.50/.56 .60/.90 .15/.35 .60/.90 .15/.35 .60/.90 .60/.90 JAPANESE AUTOMOTIVE STANDARDS CARBON STEELS AND BORON STEELS – continued AND BORON STEELS STEELS CARBON STANDARDS AUTOMOTIVE JAPANESE Steel Grade ASBo 20 ASBo 25 ASBo 28 ASBo 30 ASBo 33 ASBo 35 ASBo 38 ASBo 40 ASBo 43 ASBo 45 ASBo 48 ASBo 50 ASBo 53 181920 S 53 C21 S 55 C22 .50/.56 S 58 C23 .52/.58 .15/.3524 .55/.61 .15/.3525 .60/.90 .15/.3526 .60/.90 27 .60/.90 28 29 30 31 32 33 17 S 50 C .47/53 .15/.35 .60/.90 No.

39 Return to Table of Contents H STEELS H STEELS JAPANESE AUTOMOTIVE STANDARDS STANDARDS AUTOMOTIVE JAPANESE Steel GradeSteel C Si Mn P S Ni Cr Mo B Cu 34 ASMn420H .17/.23 .15/.35 1.15/1.55 .030 max .030 max .25 max .35 max ...... 30 max 35 ASMn425H .22/.28 .15/.35 1.15/1.55 .030 max .030 max .25 max .35 max ...... 30 max 36 ASMn430H .27/.34 .15/.35 1.15/1.55 .030 max .030 max .25 max .35 max ...... 30 max 37 SMn433H .29/.36 .15/.35 1.15/1.55 .030 max .030 max .25 max .35 max ...... 30 max 38 ASMn435H .32/.39 .15/.35 1.15/1.55 .030 max .030 max .25 max .35 max ...... 30 max 39 SMn438H .34/.41 .15/.35 1.30/1.70 .030 max .030 max .25 max .35 max ...... 30 max 40 ASMn440H .37/.44 .15/.35 1.30/1.70 .030 max .030 max .25 max .35 max ...... 30 max 41 ASMn443H .40/.47 .15/.35 1.30/1.70 .030 max .030 max .25 max .35 max ...... 30 max 42 ASMn448H .45/.52 .15/.35 1.30/1.70 .030 max .030 max .25 max .35 max ...... 30 max 43 ASMn453H .50/.57 .15/.35 1.30/1.70 .030 max .030 max .25 max .35 max ...... 30 max 44 ASMnB220H .17/.23 .15/.35 1.10/1.40 .030 max .030 max .25 max .35 max ...... 0005 min .30 max 45 ASMnB233H .29/.36 .15/.35 1.10/1.40 .030 max .030 max .25 max .35 max ...... 0005 min .30 max 46 ASMnB422H .19/.25 .15/.35 1.20/1.50 .030 max .030 max .25 max .35 max ...... 0005 min .30 max 47 ASMnB425H .22/.28 .15/.35 1.20/1.50 .030 max .030 max .25 max .35 max ...... 0005 min .30 max 48 ASMnB433H .29/.36 .15/.35 1.20/1.50 .030 max .030 max .25 max .35 max ...... 0005 min .30 max 49 ASMnB443H .40/.47 .15/.35 1.20/1.50 .030 max .030 max .25 max .35 max ...... 0005 min .30 max 50 ASMnC420H .17/.23 .15/.35 1.15/1.55 .030 max .030 max .25 max .35/.70 ...... 30 max 51 SMnC443H .39/.46 .15/.35 1.30/1.70 .030 max .030 max .25 max .35/.70 ...... 30 max No.

40 Return to Table of Contents JAPANESE AUTOMOTIVE STANDARDS H STEELS – continued H STEELS STANDARDS AUTOMOTIVE JAPANESE .37/.44 .15/.35 .80/1.20 .030 max .030 max .25 max .30/.70 ...... 0005 min .30 max Steel GradeSteel C Si Mn P S Ni Cr Mo B Cu ASMnCB440H 52 ASMnC520H .17/.23 .15/.35 1.15/1.55 .030 max .030 max .25 max .85/1.25 ...... 30 max 55 SCr415H .12/.18 .15/.35 .80/1.20 .030 max .030 max .25 max .85/1.25 ...... 30 max 53 ASMnC543H .39/.46 .15/.35 1.30/1.70 .030 max .030 max .25 max .85/1.25 ...... 30 max 56 ASCr418H .15/.21 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 ...... 30 max 54 57 SCr420H .17/.23 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 ...... 30 max 58 ASCr423H .20/.26 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 ...... 30 max 59 ASCr425H .22/.28 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 ...... 30 max 60 SCr430H .27/.34 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 ...... 30 max 61 SCr435H .32/.39 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 ...... 30 max 62 SCr440H .37/.44 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 ...... 30 max 63 ASCr445H .42/.49 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 ...... 30 max 64 ASCB435H .32/.39 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 ...... 0005 min .30 max 65 ASCB440H .37/.44 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 ...... 0005 min .30 max 66 ASCM115H .12/.18 .15/.35 .60/.90 .030 max .030 max .25 max .35/.65 .08/.15 ...... 30 max 67 ASCM118H .15/.21 .15/.35 .60/.90 .030 max .030 max .25 max .35/.65 .08/.15 ...... 30 max 68 ASCM120H .17/.23 .15/.35 .60/.90 .030 max .030 max .25 max .35/.65 .08/.15 ...... 30 max 69 ASCM125H .22/.28 .15/.35 .60/.90 .030 max .030 max .25 max .35/.65 .08/.15 ...... 30 max 70 ASCM315H .12/.18 .15/.35 .65/1.00 .030 max .030 max .25 max .85/1.25 .08/.15 ...... 30 max No.

41 Return to Table of Contents JAPANESE AUTOMOTIVE STANDARDS H STEELS – continued H STEELS STANDARDS AUTOMOTIVE JAPANESE Steel GradeSteel C Si Mn P S Ni Cr Mo B Cu 71 ASCM318H .15/.21 .15/.35 .65/1.00 .030 max .030 max .25 max .85/1.25 .08/.15 ...... 30 max 72 ASCM320H .17/.23 .15/.35 .65/1.00 .030 max .030 max .25 max .85/1.25 .08/.15 ...... 30 max 73 ASCM325H .22/.28 .15/.35 .65/1.00 .030 max .030 max .25 max .85/1.25 .08/.15 ...... 30 max 74 SCM415H .12/.18 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 .15/.35 ...... 30 max 75 SCM418H .15/.21 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 .15/.35 ...... 30 max 76 SCM420H .17/.23 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 .15/.35 ...... 30 max 77 ASCM430H .27/.34 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 .15/.35 ...... 30 max 78 SCM435H .32/.39 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 .15/.35 ...... 30 max 79 SCM440H .37/.44 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 .15/.35 ...... 30 max 80 SCM445H .42/.49 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 .15/.35 ...... 30 max 81 SCM822H .19/.25 .15/.35 .55/.90 .030 max .030 max .25 max .85/1.25 .35/.45 ...... 30 max 82 SNCM220H .17/.23 .15/.35 .60/.95 .030 max .030 max .35/.75 .35/.65 .15/.30 ...... 30 max 83 SNCM420H .17/.23 .15/.35 .40/.70 .030 max .030 max 1.55/2.00 .35/.65 .15/.30 ...... 30 max No.

42 Return to Table of Contents JIS G 4051 CARBON STEELS STEELS CARBON Chemical Composition, % Chemical Composition,

JAPANESE INDUSTRIAL STANDARDS STANDARDS INDUSTRIAL JAPANESE S 10 C .08/.13 .15/.35 .30/.60 .030 max .035 max S 40 C .37/.43 .15/.35 .60/.90 .030 max .035 max S 12 C .10/.15 .15/.35 .30/.60 .030 max .035 max S 43 C .40/.46 .15/.35 .60/.90 .030 max .035 max S 15 C .13/.18 .15/.35 .30/.60 .030 max .035 max S 45 C .42/.48 .15/.35 .60/.90 .030 max .035 max S 17 C .15/.20 .15/.35 .30/.60 .030 max .035 max S 48 C .45/.51 .15/.35 .60/.90 .030 max .035 max S 20 C .18/.23 .15/.35 .30/.60 .030 max .035 max S 50 C .47/.53 .15/.35 .60/.90 .030 max .035 max S 22 C .20/.25 .15/.35 .30/.60 .030 max .035 max S 53 C .50/.56 .15/.35 .60/.90 .030 max .035 max S 25 C .22/.28 .15/.35 .30/.60 .030 max .035 max S 55 C .52/.58 .15/.35 .60/.90 .030 max .035 max S 28 C .25/.31 .15/.35 .60/.90 .030 max .035 max S 58 C .55/.61 .15/.35 .60/.90 .030 max .035 max S 30 C .27/.33 .15/.35 .60/.90 .030 max .035 max S 09 CK .07/.12 .15/.35 .30/.60 .025 max .025 max S 33 C .30/.36 .15/.35 .60/.90 .030 max .035 max S 15 CK .13/.18 .15/.35 .30/.60 .025 max .025 max S 35 C .32/.38 .15/.35 .60/.90 .030 max .035 max S 20 CK .18/.23 .15/.35 .30/.60 .025 max .025 max S 38 C .35/.41 .15/.35 .60/.90 .030 max .035 max Steel GradeSteel C Si Mn P S Grade Steel C Si Mn P S NOTE: As impurities Cu, Ni, Cr and Ni + Cr for grades S 09 CK, S 15 CK, S 20 CK shall not exceed respectively 0.25%, 0.20%, 0.20% and 0.30% and Cu, Ni, Cr and Ni + Ni, 0.20% and 0.30% Cu, 0.20%, 0.25%, respectively shall not exceed S 20 CK S 15 CK, S 09 CK, Cr and Ni + for grades Ni, As impurities Cu, NOTE: 0.20% and 0.35%. 0.20%, 0.30%, respectively shall not exceed Cr for other grades

43 Return to Table of Contents Mo Cr S P JIS G 4805 Mn Chemical Composition, % Chemical Composition, Si JAPANESE INDUSTRIAL STANDARDS STANDARDS INDUSTRIAL JAPANESE HIGH CARBON CHROMIUM BEARING STEELS CHROMIUM BEARING STEELS HIGH CARBON C SUJ 1 .95/1.10 .15/.35 .50 max .025 max .025 max .90/1.20 ...... SUJ 5 .95/1.10 .40/.70 .90/1.15 .025 max .025 max .90/1.20 .10/.25 SUJ 4 .95/1.10 .15/.35 .50 max .025 max .025 max 1.30/1.60 .10/.25 SUJ 3 .95/1.10 .40/.70 .90/1.15 .025 max .025 max .90/1.20 ...... SUJ 2 .95/1.10 .15/.35 .50 max .025 max .025 max 1.30/1.60 ...... Symbol

44 Return to Table of Contents Mo Cr Ni S P JIS G 4103 Chemical Composition, % Chemical Composition, Mn JAPANESE INDUSTRIAL STANDARDS STANDARDS INDUSTRIAL JAPANESE Si NICKEL MOLYBDENUM CHROMIUM STEELS CHROMIUM STEELS MOLYBDENUM NICKEL SNCM 220 .17/.23 .15/.35 .60/.90 .030 max .030 max .40/.70 .40/.65 .15/.30 SNCM 240 .38/.43 .15/.35 .70/1.00 .030 max .030 max .40/.70 .40/.65 .15/.30 SNCM 415 .12/.18 .15/.35 .40/.70 .030 max .030 max 1.60/2.00 .40/.65 .15/.30 SNCM 420 .17/.23 .15/.35 .40/.70 .030 max .030 max 1.60/2.00 .40/.65 .15/.30 SNCM 431 .27/.35 .15/.35 .60/.90 .030 max .030 max 1.60/2.00 .60/1.00 .15/.30 SNCM 439 .36/.43 .15/.35 .60/.90 .030 max .030 max 1.60/2.00 .60/1.00 .15/.30 SNCM 447 .44/.50 .15/.35 .60/.90 .030 max .030 max 1.60/2.00 .60/1.00 .15/.30 SNCM 616 .13/.20 .15/.35 .80/1.20 .030 max .030 max 2.80/3.20 1.40/1.80 .40/.60 SNCM 625 .20/.30 .15/.35 .35/.60 .030 max .030 max 3.00/3.50 1.00/1.50 .15/.30 SNCM 630 .25/.35 .15/.35 .35/.60 .030 max .030 max 2.50/3.50 2.50/3.50 .50/.70 SNCM 815 .12/.18 .15/.35 .30/.60 .030 max .030 max 4.00/4.50 .70/1.00 .15/.30 Steel GradeSteel C NOTE: As impurities, Cu shall not exceed 0.30% for all grades. Cu shall not exceed As impurities, NOTE:

45 Return to Table of Contents Cr .90/1.20 .90/1.20 .90/1.20 .90/1.20 .90/1.20 .90/1.20 S .030 max .030 max .030 max .030 max .030 max .030 max P .030 max .030 max .030 max .030 max .030 max .030 max Mn .60/.85 .60/.85 .60/.85 .60/.85 .60/.85 .60/.85 JIS G 4104

Chemical Composition, % Chemical Composition, CHROMIUM STEELS CHROMIUM STEELS Si .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 JAPANESE INDUSTRIAL STANDARDS STANDARDS INDUSTRIAL JAPANESE C .43/.48 .38/.43 .33/.38 .28/.33 .18/.23 .13/.18 Steel Grade Steel SCr 445 SCr 440 SCr 435 SCr 430 SCr 420 SCr 415 NOTE: As impurities Ni and Cu shall not exceed 0.25% and 0.30%, respectively, for all grades. respectively, 0.25% and 0.30%, As impurities Ni and Cu shall not exceed NOTE:

46 Return to Table of Contents Mo Cr S P JIS G 4105 Mn Chemical Composition, % Chemical Composition, Si CHROMIUM MOLYBDENUM STEELS STEELS CHROMIUM MOLYBDENUM JAPANESE INDUSTRIAL STANDARDS STANDARDS INDUSTRIAL JAPANESE .16/.21.18/.23.17/.23.28/.33 .15/.35.27/.37 .15/.35.33/.38 .15/.35.38/.43 .15/.35 .60/.85.43/.48 .15/.35 .60/.85.20/.25 .15/.35 .70/1.00 .15/.35 .60/.85 .030 max .15/.35 .30/.60 .030 max .15/.35 .030 max .60/.85 .030 max .60/.85 .030 max .030 max .60/.85 .030 max .030 max .60/.85 .030 max .90/1.20 .030 max .030 max .90/1.20 .030 max .030 max .90/1.20 .030 max .030 max .90/1.20 .030 max .15/.30 1.00/1.50 .030 max .15/.30 .15/.30 .90/1.20 .030 max .90/1.20 .15/.30 .15/.30 .90/1.20 .90/1.20 .15/.30 .15/.30 .15/.30 .35/.45 .13/.18 .15/.35 .60/.85 .030 max .030 max .90/1.20 .15/.30 Steel GradeSteel C SCM 418 SCM 420 SCM 421 SCM 430 SCM 432 SCM 435 SCM 440 SCM 445 SCM 822 NOTE: As impurities, Ni and Cu shall not exceed 0.25% and 0.30%, respectively, for all grades. respectively, 0.25% and 0.30%, Ni and Cu shall not exceed As impurities, NOTE: SCM 415

47 Return to Table of Contents Cr ...... 35/.70 .35/.70 S .030 max .030 max .030 max .030 max .030 max .030 max P .030 max .030 max .030 max .030 max .030 max .030 max Mn 1.35/1.65 1.20/1.50 1.35/1.65 1.35/1.65 1.20/1.50 1.20/1.50 JIS G 4106 Chemical Composition, % Chemical Composition, Si .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 .15/.35 JAPANESE INDUSTRIAL STANDARDS STANDARDS INDUSTRIAL JAPANESE C .40/.46 .17/.23 .40/.46 .35/.41 .30/.36 .17/.23 MANGANESE STEELS AND MANGANESE CHROMIUM STEELS AND MANGANESE CHROMIUM STEELS MANGANESE STEELS Steel Grade Steel SMnC 443 SMnC 420 SMn 443 SMn 438 SMn 433 SMn 420 NOTE: As impurities Ni and Cu shall not exceed 0.25% and 0.30%, respectively, for all grades. SMn 420, SMn 433, SMn 438 and SMn 443 shall not contain Cr exceeding 0.35%. SMn 438 and 443 shall not contain Cr exceeding SMn 433, SMn 420, for all grades. respectively, 0.25% and 0.30%, As impurities Ni and Cu shall not exceed NOTE:

48 Return to Table of Contents

...... 20 48 22 48 47 27 47 46 35 32 45 44 40 38 42 Max.

41 41 40 39 38 36 30 20 23 Min. 15B21 H

26 28 30 30 29 31 32 33 39 35 60 41 59 59 44 58 57 48 46 56 55 52 50 53 Max.

1541 H

...... 20 21 22 23 23 53 24 52 50 25 47 44 27 26 41 38 32 29 35 Min.

...... 21 20 22 23 24 26 24 53 26 50 49 27 47 46 30 28 42 39 33 31 37

Max.

1526 H

...... 44 42 38 33 26 25 21 20 Min.

...... 20 22 23 25 27 26 51 28 49 48 29 47 45 32 30 43 39 35 34 38 Max.

1524 H

...... 42 42 38 34 29 25 22 20 Min. GRADE

...... 50 48 47 46 45 27 42 39 30 28 37 34 32

Max.

1522 H

...... 41 41 32 27 22 21 20 Min.

21 22 26 25 23 27 28 29 29 62 30 61 59 30 56 52 31 46 38 32 31 34 33 32 Max.

Tabulations of Band Limits – 1038 H to 15B21 Tabulations

END-QUENCH HARDENABILITY BANDS END-QUENCH HARDENABILITY 1045 H ...... 20 21 23 22 55 24 52 42 24 34 31 25 29 28 25 25 27 26 26 Min.

...... 21 23 24 25 25 58 26 56 55 26 53 49 27 43 37 28 27 33 30 29 These values were adjusted to the nearest Rockwell “C” point, and are used when points are selected and specifie used when points are and are “C” point, Rockwell adjusted to the nearest values were These Max.

...... 51 42 34 29 26 24 23 21 20 22 22 21 Min. 1038 H

9 1 8 2 3 7 4 6 5 “J” 24 22 18 20 16 14 12 10 1.5 2.5 7.5 3.5 6.5 4.5 5.5 Distance of an Inch Sixteenths

49 Return to Table of Contents 38 40 39 37 36 43 42 48 45 35 34 50 52 33 32 53 55 31 31 56 31 30 30 56 Max.

...... 20 22 21 25 23 28 26 31 35 40 44 47 49 Min. 1330 H

...... 62 62 61 63 63 64 63 60 58 64 64 65 54 48 65 43 40 37 35 34

Max.

35 34 33 37 35 43 39 33 32 57 52 58 31 30 59 60 30 29 60 28 60 27 26 60 Min. 15B62 H

48 45 41 53 51 56 55 38 34 58 57 59 32 31 60 61 30 29 62 29 62 28 28 63

Max.

...... 27 27 26 29 28 31 30 26 25 42 34 52 24 23 53 54 22 21 55 20 56 56 Min.

15B48 H

52 51 50 54 53 55 55 49 46 57 56 57 42 39 58 58 36 34 59 33 31 31 59 60

Max.

...... 26 25 25 32 28 44 37 24 23 49 48 50 22 21 51 51 21 20 52 52 53 Min. 15B41 H

...... 33 40 45 29 51 50 52 27 53 54 25 55 56 23 21 58

Max.

...... 20 21 22 33 26 37 43 48 49 50 50 Min. GRADE 15B37 H

...... 26 27 25 30 47 41 24 51 53 22 54 55 20 56 58

Max.

...... 20 24 22 28 39 48 49 50 51 Min. 15B35 H

Tabulations of Band Limits – 15B28 H to 1330 Tabulations ...... 24 26 25 23 22 29 27 43 38 33 20 48 50 51 52 53 55

Max. END-QUENCH HARDENABILITY BANDS END-QUENCH HARDENABILITY

...... 20 22 32 44 46 47 48 Min.

15B30 H

These values were adjusted to the nearest Rockwell “C” point, and are used when points are selected and specifie used when points are and are “C” point, Rockwell adjusted to the nearest values were These

31 37 34 30 29 43 40 48 46 27 25 49 50 25 24 51 51 23 22 52 21 20 53 53 Max.

...... 21 20 25 32 42 45 46 47 47 Min. 15B28 H

8 9 7 6 5 4 3 2 1 14 12 13 15 16 10 11 18 20 22 24 26 28 30 32

“J” Distance of an Inch Sixteenths

50 Return to Table of Contents 27 26 26 27 27 28 28 28 29 29 30 31 30 32 33 34 36 39 45 50 55 58 60 62 Max.

...... 20 20 21 22 22 22 23 23 23 24 24 25 26 27 29 33 40 48 52 55 Min. 4042 H

23 23 24 24 24 25 25 25 25 26 26 27 26 28 29 30 32 34 38 45 51 54 57 59 Max.

...... 20 21 22 23 26 30 35 42 49 52 Min.

4037 H

...... 20 21 21 22 22 23 23 23 24 25 24 26 26 28 29 31 34 39 46 51 54 57

Max.

...... 20 21 22 23 25 29 36 45 50 Min.

4032 H

...... 20 21 21 22 22 23 23 24 25 25 26 28 30 34 40 46 50 52

Max.

4028 H

...... 20 22 25 31 40 45 Min.

42 41 42 42 43 43 43 44 44 44 45 44 45 45 45 45 45 45 46 46 46 47 47 47 (1) Max.

30 30 30 31 31 31 31 31 31 31 32 32 32 33 33 34 35 36 37 37 38 38 39 40 Min. 3316 H GRADE

35 35 36 36 36 37 37 37 38 38 39 39 40 40 40 41 41 41 42 42 42 42 43 43 (1) Max.

3310 H 25 25 25 25 26 26 26 26 27 27 28 28 29 29 30 30 31 32 33 34 35 35 36 36 Min.

Tabulations of Band Limits – 1335 H to 4037 Tabulations

45 45 45 45 46 47 48 49 51 52 54 53 55 56 57 58 59 60 60 61 61 62 63 63

Max. END-QUENCH HARDENABILITY BANDS END-QUENCH HARDENABILITY

24 24 25 25 26 26 27 27 28 28 29 29 30 31 32 33 35 38 44 51 54 55 56 56 Min.

1345 H These values were adjusted to the nearest Rockwell “C” point, and are used when points are selected and specifie used when points are and are “C” point, Rockwell adjusted to the nearest values were These 34 34 35 35 36 37 38 39 41 42 46 44 48 50 51 52 54 55 56 57 58 59 60 60

Max.

20 20 21 21 22 22 23 23 24 25 26 25 27 28 29 31 33 35 40 46 49 51 52 53 Min. 1340 H

9 8 7 6 5 4 3 2 1 30 32 28 26 24 22 20 18 16 15 13 14 12 11 10

“J” Distance of an Inch Sixteenths Formerly Standard Steels Standard Formerly (1)

51 Return to Table of Contents 61 61 60 60 60 59 59 58 58 57 57 56 55 54 53 61 53 62 52 62 51 62 51 50 Max.

4142 H 53 52 51 50 49 47 46 44 42 41 40 39 37 36 35 53 34 54 34 55 34 55 33 33 Min.

59 58 58 57 57 56 56 55 55 54 54 53 52 51 49 59 48 60 47 60 46 60 45 44 Max.

4140 H 51 50 48 47 44 42 40 39 38 37 36 35 34 33 33 51 32 52 32 53 31 53 31 30 Min.

57 57 56 55 55 54 53 52 51 50 49 48 46 45 44 58 43 58 42 59 42 59 41 41 Max.

4137 H

49 48 45 43 40 39 37 36 35 34 33 33 32 31 30 49 30 50 30 51 29 52 29 29 Min.

56 55 54 53 52 51 50 49 48 47 46 45 44 42 41 56 40 57 39 58 38 58 38 37 Max.

4135 H

47 45 42 40 38 36 34 33 32 31 30 30 29 28 27 48 27 49 27 50 26 51 26 26 Min.

49 47 44 42 40 38 36 35 34 34 33 33 32 32 32 51 31 53 31 55 30 56 30 29 Max.

4130 H

...... 34 31 29 27 26 26 25 25 24 24 23 23 22 21 20 38 42 46 49 Min. GRADE

37 34 32 30 29 28 27 26 25 25 24 24 23 23 23 23 41 23 44 22 47 22 48 22 Max.

4120 H

...... 23 21 27 32 37 41 Min.

Tabulations of Band Limits – 4042 H to 4142 Tabulations

...... 31 28 27 25 24 23 22 21 21 20 35 41 46 48

Max. END-QUENCH HARDENABILITY BANDS END-QUENCH HARDENABILITY

4118 H ...... 20 23 27 36 41 Min.

32 30 28 28 27 26 26 25 25 25 25 24 24 23 23 35 22 42 22 50 21 55 21 57 Min. 4047 H

6 7 8 9 5 4 3 2 1 10 11 12 13 14 15 16 18 20 22 24 26 28 30 32

“J” Distance of an Inch Sixteenths

52 Return to Table of Contents ...... 20 21 21 22 22 22 34 31 29 27 26 25 24 23 39 42 45 48 Max.

4620 H ...... 21 24 27 35 41 Min.

57 57 57 57 57 58 58 58 59 59 59 60 60 60 60 60 60 60 60 60 60 60 60 60 Max.

E 4340 H 44 45 46 47 48 49 50 51 51 52 52 52 53 53 53 53 53 53 52 53 53 53 53 53 Min.

56 56 56 57 57 57 57 58 58 58 58 59 60 60 60 60 60 59 59 60 60 60 60 60 Max.

4340 H 40 41 42 43 44 45 46 47 48 49 49 50 53 53 52 52 52 51 51 53 53 53 53 53 Min.

24 24 24 24 24 24 25 25 26 27 27 28 38 36 34 33 31 30 29 41 43 45 47 48

Max.

4320 H

...... 27 25 23 22 21 20 20 29 32 35 38 41 Min.

63 63 63 63 63 63 63 64 64 64 64 65 65 65 65 65 65 64 64 65 65 65 65 65

Max.

4161 H 41 42 43 45 48 50 53 53 56 57 58 60 60 60 59 59 59 59 58 60 60 60 60 60 Min. GRADE

58 58 58 58 59 59 60 61 62 62 62 65 65 64 64 64 64 63 63 65 65 65 65 65 Max.

4150 H

38 38 38 39 40 41 43 45 47 48 50 57 57 56 56 55 54 53 51 58 58 59 59 59 Min.

Tabulations of Band Limits – 4145 H to 4620 Tabulations

56 56 57 57 57 58 59 59 60 60 61 63 63 63 63 62 62 62 61 63 64 64 64 64

Max. END-QUENCH HARDENABILITY BANDS END-QUENCH HARDENABILITY

4147 H 36 37 37 37 38 39 40 42 45 46 48 55 55 54 54 53 52 51 49 55 56 56 57 57 Min.

34 34 35 35 36 37 38 40 42 43 45 53 52 52 51 50 49 48 46 53 54 55 55 56 Min. 4145 H

6 7 8 9 5 4 3 2 1 32 30 28 26 24 22 20 18 16 15 14 10 11 12 13

“J” Distance of an Inch Sixteenths

53 Return to Table of Contents 36 35 34 33 40 38 37 44 48 50 52 54 56 57 58 59 60 60 61 61 62 62 63 63 Max.

50B44 H ...... 20 24 23 21 26 27 28 29 29 30 31 34 38 43 48 52 54 55 55 56 56 Min.

32 30 29 33 36 35 34 38 41 44 47 49 51 53 55 56 57 57 58 58 59 59 60 60 Max.

50B40 H ...... 21 23 25 25 26 27 28 29 31 34 39 44 48 50 51 52 53 53 Min.

26 26 25 27 28 28 27 29 31 32 33 34 35 36 37 39 40 42 43 45 46 47 48 48 Max.

...... 20 20 21 21 22 22 23 24 25 26 27 29 31 34 38 39 40 41 Min.

25 24 24 25 25 25 26 27 28 28 29 30 31 32 33 35 37 39 41 42 44 45 46 46 Max.

4817 H 4820 H ...... 20 20 21 22 23 25 27 29 32 35 38 39 Min.

23 23 23 24 24 24 25 26 27 27 28 28 29 30 31 33 35 37 39 41 42 44 44 45

Max.

4815 H ...... 20 21 22 24 27 30 34 37 38 Min. GRADE

...... 21 20 21 21 22 23 23 24 24 25 26 27 28 29 32 35 39 43 47 48 Max.

4720 H ...... 21 23 27 31 39 41 Min.

Tabulations of Band Limits – 4626 H to 50B44 Tabulations 24 24 24 26 25 25 26 27 27 27 28 29 29 30 31 32 33 35 37 40 43 45 47 47

Max. END-QUENCH HARDENABILITY BANDS END-QUENCH HARDENABILITY

4718 H ...... 20 20 21 21 21 22 22 23 24 25 27 29 33 38 40 40 Min.

...... 20 21 21 22 22 23 24 25 27 29 33 41 48 51

Max. (1)

...... 21 24 29 36 45 Min. 4626 H

9 8 7 6 5 4 3 2 1 28 30 32 22 24 26 20 18 16 15 14 13 12 11 10

“J” Distance of an Inch Sixteenths Formerly Standard Steels Standard Formerly (1)

54 Return to Table of Contents 30 31 32 32 33 34 35 36 37 37 38 39 40 41 43 45 47 50 52 54 55 56 57 58 Max.

5135 H ...... 20 21 21 22 23 24 25 27 28 30 32 35 38 43 47 49 51 Min.

25 26 27 28 29 30 31 32 33 34 34 35 36 37 38 40 42 45 48 50 52 54 56 57

Max.

5132 H ...... 20 21 22 23 24 25 27 29 32 35 40 43 47 50 Min.

24 25 26 27 29 30 31 32 33 34 34 35 36 37 38 40 42 45 47 49 51 53 55 56

Max.

5130 H ...... 20 21 22 23 25 26 28 30 32 35 39 42 46 49 Min.

...... 20 21 21 22 23 24 25 27 28 30 33 36 41 46 48

Max.

5120 H ...... 20 23 28 34 40 Min.

...... 44 47 49 51 53 55 58 60 62 63 63 63 64 64 64 65 65

Max.

50B60 H 25 26 27 28 29 30 31 33 34 34 35 36 37 39 42 47 53 57 59 60 60 60 60 60 Min. GRADE

36 37 38 39 41 44 47 50 54 56 57 58 59 60 60 61 62 62 63 63 64 64 65 65 Max.

50B50 H 20 21 22 24 25 26 27 28 29 30 31 32 33 35 37 42 47 52 55 56 57 58 59 59 Min.

Tabulations of Band Limits – 5046 H to 5135 Tabulations

28 29 30 31 32 33 34 35 36 37 38 40 43 47 51 54 56 57 58 59 60 61 62 63 Max. END-QUENCH HARDENABILITY BANDS END-QUENCH HARDENABILITY

50B46 H ...... 20 21 22 23 24 25 25 26 26 27 28 29 30 31 32 41 50 52 54 56 Min.

...... 20 21 21 22 22 23 23 24 24 25 26 27 28 32 45 55 56 Min. 5046 H

9 8 7 6 5 4 3 2 1 32 30 28 26 24 22 20 18 16 15 14 13 12 11 10

“J” Distance of an Inch Sixteenths

55 Return to Table of Contents 42 43 44 45 46 47 48 50 52 54 55 57 58 59 60 61 61 62 63 63 64 64 65 65 Max.

6150 H 25 26 27 29 30 31 32 34 35 35 36 37 38 39 41 43 47 50 53 55 56 57 58 59 Min.

...... 20 21 21 22 22 23 23 24 24 25 25 26 26 27 28 30 33 38 44 46 Max.

6118 H ...... 20 22 24 28 36 39 Min.

...... 47 49 51 53 55 57 59 61 63 64 64 65 65 Max.

51B60 H 25 27 28 30 31 33 34 36 37 38 39 40 41 44 50 54 57 58 59 60 60 60 60 60 Min.

...... 42 43 43 44 45 46 47 48 52 54 56 58 59 60 61 62 63 64 64 65 65 Max.

5160 H 27 28 28 29 30 31 32 33 34 34 35 35 36 37 39 42 47 52 56 58 59 60 60 60 Min.

.... 40 41 41 42 43 44 45 47 49 51 52 55 57 59 60 61 62 62 63 63 64 64 65 Max.

5155 H 25 26 27 28 29 30 31 31 32 33 33 34 34 35 36 37 41 47 52 55 57 58 59 60 Min. GRADE

38 39 39 40 41 42 43 45 47 48 50 51 53 55 56 58 59 60 61 62 63 64 65 65 Max.

5150 H

22 23 24 25 26 27 28 29 30 30 31 31 32 33 34 36 38 42 49 53 56 57 58 59 Min.

Tabulations of Band Limits – 5140 H to 6150 Tabulations

48 49 50 51 52 53 54 55 56 57 57 58 58 59 59 60 60 61 61 62 62 63 64 64 Max. END-QUENCH HARDENABILITY BANDS END-QUENCH HARDENABILITY

5147 H 21 22 24 25 26 27 29 30 31 32 32 33 34 35 37 40 45 49 52 53 54 55 56 57 Min.

Max.

...... 20 21 23 24 25 26 27 27 28 29 30 31 33 35 38 43 48 50 52 53 Min. 5140 H

9 8 7 6 5 4 3 2 1 32 30 28 26 24 22 20 18 16 15 14 13 12 11 10

“J” Distance of an Inch Sixteenths

56 Return to Table of Contents 39 40 41 43 44 45 47 48 49 50 50 51 51 52 52 52 53 53 54 54 55 55 55 56 Max.

86B30 H 25 26 27 28 29 31 32 34 35 36 38 39 40 42 44 46 47 48 48 48 48 48 49 49 Min.

29 29 29 29 29 29 30 30 31 32 33 33 34 35 37 39 41 44 47 50 52 54 55 56 Max.

8630 H ...... 20 20 21 21 22 22 23 24 25 26 27 28 29 32 35 39 43 46 49 Min.

27 27 27 27 27 28 28 28 29 30 30 31 32 33 34 36 38 40 43 45 48 50 52 54 Max.

8627 H ...... 20 20 21 21 22 23 24 24 26 27 29 32 35 38 43 47 Min.

25 25 25 26 26 26 26 27 27 28 28 29 30 31 32 33 35 37 40 43 46 48 51 52 Max.

8625 H ...... 20 21 22 23 25 27 29 32 36 41 45 Min.

24 24 24 24 24 24 24 25 25 26 26 27 28 29 30 31 32 34 37 40 44 47 49 50

Max.

8622 H ...... 20 22 24 26 30 34 39 43 Min. GRADE

22 22 22 23 23 23 23 23 24 24 25 25 26 27 28 29 30 32 34 37 41 44 47 48

Max.

8620 H ...... 21 23 27 32 37 41 Min.

Tabulations of Band Limits – 81B45 H to 86B30 Tabulations ...... 20 21 21 22 22 23 23 24 25 26 27 28 31 34 38 41 44 46

Max. END-QUENCH HARDENABILITY BANDS END-QUENCH HARDENABILITY

8617 H ...... 20 24 27 33 39 Min.

Max.

27 28 28 29 30 31 32 34 35 36 37 38 39 41 44 48 51 53 54 55 56 56 56 56 Min. 81B45 H

9 8 7 6 5 4 3 2 1 32 30 28 26 24 22 20 18 16 15 14 13 12 11 10

“J” Distance of an Inch Sixteenths

57 Return to Table of Contents ...... 60 60 61 62 62 63 64 64 65 Max.

8660 H 35 35 36 36 37 38 39 40 42 43 44 45 47 50 53 55 57 58 59 60 60 60 60 60 Min.

...... 53 55 56 57 58 59 60 61 62 63 63 64 64 65 65

Max.

8655 H 32 32 33 33 34 34 35 37 38 39 40 41 43 46 49 52 54 55 56 57 58 59 59 60 Min.

45 46 47 49 50 52 53 55 56 57 58 58 59 60 60 61 62 63 63 64 64 65 65 65 Max.

8650 H 29 29 30 30 31 31 32 33 34 35 36 37 39 41 44 47 50 53 54 56 57 57 58 59 Min.

56 56 57 57 57 57 58 58 58 58 59 59 59 59 60 60 60 61 61 62 62 62 63 63 Max.

86B45 H 31 32 32 34 35 37 39 42 45 46 48 49 50 50 51 51 52 52 53 54 54 55 56 56 Min.

41 41 41 42 42 43 45 47 49 51 52 54 55 56 58 59 60 61 61 62 63 63 63 63

Max.

8645 H 27 27 27 27 28 28 29 30 31 32 33 34 35 37 39 41 45 48 50 52 54 55 56 56 Min. GRADE

39 39 39 40 40 41 42 44 46 48 49 50 52 54 55 57 58 59 60 61 61 62 62 62 Max.

8642 H 26 26 26 26 27 27 28 28 29 30 31 32 33 34 37 39 42 45 48 50 52 53 54 55 Min.

Tabulations of Band Limits – 8637 H to 8660 Tabulations

37 37 37 37 38 38 39 41 42 44 45 47 49 50 52 54 55 57 58 59 59 60 60 60

Max. END-QUENCH HARDENABILITY BANDS END-QUENCH HARDENABILITY

8640 H 24 24 24 24 25 25 26 26 28 28 29 30 31 32 34 36 39 42 46 49 51 52 53 53 Min.

23 23 24 24 24 24 25 25 26 27 28 29 30 31 32 34 36 39 42 45 48 50 51 52 Min. 8637 H

9 8 7 6 5 4 3 2 1 32 30 28 26 24 22 20 18 16 15 14 13 12 11 10

“J” Distance of an Inch Sixteenths

58 Return to Table of Contents 34 34 35 37 38 40 42 44 46 48 49 50 51 51 52 52 53 53 54 54 55 55 56 56 Max.

94B30 H 20 21 21 22 23 23 24 25 27 28 29 30 32 34 37 39 42 44 46 47 48 48 49 49 Min.

23 23 24 24 25 26 27 28 30 31 32 33 34 36 38 40 41 42 43 44 45 45 46 46 Max.

94B17 H ...... 20 21 23 24 26 29 34 37 38 39 39 Min.

22 22 22 23 23 24 25 26 27 28 29 30 31 33 34 36 38 40 42 43 44 44 45 45 Max.

94B15 H ...... 20 21 23 25 28 32 36 37 38 38 Min.

33 33 34 34 34 34 35 35 35 36 36 37 38 39 40 40 41 42 42 42 42 43 43 43

Max.

9310 H 24 24 25 25 25 25 25 26 26 26 26 26 26 27 27 28 29 30 31 32 34 35 35 36 Min.

...... 34 35 35 35 36 36 37 38 40 42 43 45 47 49 52 55 58 60 62 63 64 65

Max.

9260 H 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 36 36 38 41 46 53 57 60 60 Min. GRADE

27 27 27 27 27 27 28 29 29 30 30 31 31 32 33 34 35 37 40 43 46 48 49 50 Max.

8822 H ...... 20 21 21 22 22 22 23 23 24 24 25 27 29 33 39 42 43 Min.

Tabulations of Band Limits – 8720 H to 94B30 Tabulations 38 38 39 39 40 41 42 43 45 46 48 49 50 52 53 55 56 57 58 59 60 60 60 60

Max. END-QUENCH HARDENABILITY BANDS END-QUENCH HARDENABILITY

8740 H 26 26 27 27 27 27 28 28 29 30 31 31 32 34 35 37 40 43 46 49 51 52 53 53 Min.

...... 20 21 22 24 26 30 35 38 41 Min. 8720 H

9 8 7 6 5 4 3 2 1 32 30 28 26 24 22 20 18 16 15 14 13 12 11 10

“J” Distance of an Inch Sixteenths

59 Return to Table of Contents

Max.

Min.

4130 RH 4130

....

Max.

4120 RH 4120

....

Min.

....

Max.

4118 RH 4118

....

Min.

....

Max.

4027 RH 4027

....

Min.

GRADE

Max.

3310 RH 3310

Min.

....

Max.

Tabulations of RH 4130 to RH 15B21 – Limits Band Tabulations

15B35 RH 15B35

....

Min.

RESTRICTED END-QUENCH HARDENABILITY BANDS HARDENABILITY END-QUENCH RESTRICTED

....

These values were adjusted to the nearest Rockwell “C” point, and are used when points are selected and specifie and selected are points when used are and point, “C” Rockwell nearest the to adjusted were values These

Max.

....

.....

Min.

15B21 RH 15B21

“J”

Distance

ofInch an Sixteenths

60 Return to Table of Contents

Max.

50B40 RH 50B40

....

Min.

Max.

4820 RH 4820

....

Min.

....

Max.

4620 RH 4620

....

Min.

Max.

4320 RH 4320

....

Min.

GRADE

Max.

4161 RH 4161

Min.

Max.

Tabulations of RH 50B40 to RH 4140 – Limits Band Tabulations

4145 RH 4145

Min.

RESTRICTED END-QUENCH HARDENABILITY BANDS HARDENABILITY END-QUENCH RESTRICTED

Max.

Min.

4140 RH 4140

“J”

Distance

ofInch an Sixteenths

61 Return to Table of Contents 31 31 32 32 32 32 32 33 33 34 34 35 36 37 37 38 39 40 40 41 41 42 42 42 Max.

9310 RH 25 25 26 26 26 26 26 27 27 28 28 28 28 29 29 30 31 32 33 34 35 36 36 37 Min.

25 25 25 26 26 26 26 27 27 28 28 29 30 30 31 32 33 35 37 40 43 47 48 49 Max. Max.

8822 RH ...... 20 21 22 22 23 23 23 24 25 25 26 27 29 31 35 40 43 44 Min.

...... 20 21 22 22 23 23 24 24 25 25 26 27 28 29 31 33 36 40 43 45 47 Max.

8720 RH ...... 20 21 22 23 24 26 28 32 37 39 42 Min.

22 22 22 22 22 22 22 23 23 24 24 25 26 27 28 29 30 32 35 38 41 45 47 49 Max.

8622 RH ...... 20 21 22 24 27 29 32 37 41 44 Min.

...... 20 21 22 22 23 23 24 25 26 28 29 31 34 38 41 45 47 Max.

8620 RH ...... 20 21 22 24 26 30 35 39 42 Min. GRADE

38 39 39 40 41 42 43 44 47 48 50 51 53 55 56 58 60 62 63 64 65 65 65 65 Max.

5160 RH 29 29 30 31 32 33 34 35 36 36 37 38 39 40 42 45 50 54 57 58 59 60 60 60 Min.

Tabulations of Band Limits – 5130 RH to 9310 Tabulations

29 29 30 30 31 32 33 34 35 36 37 39 40 41 43 44 46 48 51 53 55 57 58 59 Max.

5140 RH .... 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 36 38 41 45 49 51 53 54 Min.

RESTRICTED END-QUENCH HARDENABILITY BANDS END-QUENCH HARDENABILITY RESTRICTED

Max.

...... 20 21 22 23 24 25 26 27 29 31 33 35 37 41 44 47 50 Min. 5130 RH

9 8 7 6 5 4 3 2 1 32 30 28 26 24 22 20 18 16 15 14 13 12 11 10

“J” Distance of an Inch Sixteenths

62 Return to Table of Contents INTRODUCTION TO JOMINY CORRELATION WITH ROUND BARS

The following correlation of Jominy values with quenching severity and surface to center hardnesses obtainable in round bars is based on calculated and practical experience data.

Since practical heat treatment results are subject to several variables that are always difficult to determine i.e., surface condition of piece being quenched, furnace atmosphere, and quenching severity of the coolant, the metallurgist or heat treater may find some di fer- ences in applying this correlation to his particular heat treatment setup.

However, as experience is gained by their use, it is believed that these charts will be found helpful as a guide to the selection of steel of proper hardenability based on Jominy end quench results. As a value-added service, TimkenSteel hardenability data will be supplied upon request, with each heat of steel.

63 Return to Table of Contents s Hardenability Data available with each shipment of steel. These hardness values represent the approximate surface-to-center hardnes obtainable for the type of steel being heat treated. 2 ION TAT No Moderate Good Strong No Strong No Strong 83 – – – – – – – – ter ter Oil Oil Oil Oil Brine Brine Wa Wa Ideal Quench 42 – – – – – – – – – LUE QUENCH AGI VA 0.20 0.35 0.50 0.70 1.0 1.5 2.0 5.0 ° H 02 mkenSteel 62 Ti CE FA 1/2 RADIUS SUR CENTER 21 CE FA 1/2 RADIUS SUR CENTER

ROUND BARS USING JOMINY TEST RESULTS ROUND BARS USING JOMINY 0.20

Select proper round bar size to be quenched. Select the curve most representative of quenching conditions (H value) to be used. Read the curve to Jominy Distance. Insert Rockwell “C” hardness values corresponding to the Jominy Distance. These are obtained from 1. 2. 3. 4. 0.20

1/2 RADIUS SURFACE CENTER 0.35

0.50 0.20 0.35

0.50

0.70 1.0

0.35 JOMINY DISTANCE

0.70

0.50

0.70

1.0

2.0 1.5 2.0 ° 1.5

5.0

1.5 CHART FOR PREDICTING APPROXIMATE CROSS SECTION HARDNESS OF QUENCHED APPROXIMATE CHART FOR PREDICTING 1.0 04 81 INSTRUCTIONS FOR USE OF CHART 1" RD 1/2" RD 3/4" RD BAR SIZE

64 Return to Table of Contents 1/2 RADIUS SURFACE CENTER

2 0.20 CE FA ION TAT 1/2 RADIUS SUR CENTER No Moderate Good Strong No Strong No Strong

– – – – – – – –

0.35 0.20 ter ter Oil Oil Oil Oil Brine Brine Wa Wa Ideal Quench 42

– – – – – – – – – LUE QUENCH AGI 0.50 VA 0.20 0.35 0.50 0.70 1.0 1.5 2.0 5.0 ° H 02

0.70

FA 0.35

SUR 1/2 RADIUS CENTER 1.0 0.20

1.5

0.50 2.0

1/2 RADIUS CENTER SURFACE 5.0

0.70

0.20

° 21 0.35

1.0

1.5

0.50 2.0

5.0 0.35

0.70

1.0 0.50

0.70

2.0

1.0

5.0

1.5

2.0

5.0 JOMINY DISTANCE

° 1.5 04 81 2" RD 3" RD 4" RD BAR SIZE 1-1/2" RD

65 Return to Table of Contents 1/2 RADIUS 1/2 RADIUS 1/2 RADIUS SURFACE SURFACE SURFACE CENTER CENTER CENTER 1/2 RADIUS SURFACE CENTER 2 ° ° 1.5 1.5 1.5 0.35 0.50 0.70 0.35 0.35 0.35 5.0 83 ° 42 .0 0.70 51 1. 02 5.0 ° 62 21 JOMINY DISTANCE 04 81 5" RD 6" RD 7" RD 8" RD BAR SIZE

66 Return to Table of Contents EXPLANATION OF COMBINED HARDENABILITY CHARTS

The following charts present hardenability data for thirteen popular steels. They may be used to determine the approximate mid-radius hardness which is developed, in various sized rounds up to 9" in diameter using a good oil quench (.4-.5 Hv), or rounds up to 15" in diameter when air cooling. The effect of a subsequent 1000°F 2 hour temper is also illustrated.

The relationship between hardness and section size was determined using data from the Jominy end quench test, and air hardenability test, and controlled cooling tests. It must be remembered that the results for a particular steel type are based on one chemical analysis and one austenitizing temperature. Variations of these will affect hardenability, as shown by the Jominy hardenability bands (shaded area). Therefore, the charts should be used to determine estimated, rather than exact, hardness values.

USE OF CHARTS 1. Select steel type.

2. Find desired diameter for the quenching medium employed.

3. Read the approximate as-quenched or tempered hardness using the appropriate curve; read hardness range using hardenability band.

For example, a 2-inch round made of 1045 type steel will develop the following mid-radius hardnesses:

Mild Water Oil .4-.5 Hv Air

As-Cooled 28(25/32) Rc 25(22/29) Rc 91Rb

Tempered 1000 °F-2 Hours 22.5 Rc 21 Rc 91Rb

67 Return to Table of Contents M / F ϒ B 6 — M / F ϒ 9 M / F 6" ϒ W — " 2 12 / 1 M / F F. ϒ V — 13 TEMPER-2 HOURS INTERFACE F. 1550˚ M LEGEND / F "2 4 ϒ / 3 Al — AS COOLED 1000˚ 19 M / " F 4 / ϒ 1 SAE HARDENABILITY BAND Cu 27 .04 AUSTENITIZING TEMPERATURE AUSTENITIZING M / "1 F 2 / ϒ 1 1 AIR HARDENABILITY DISTANCE 32 Mo .04 M / F ϒ 1" 2" 3" 4" 5" 6" 10" 15" 4" 80 Ni .18 MID-RADIUS AT AIR M / QUENCH F Cr .11 ϒ 48 — AUSTENITIZED 1550° F. 200 M / F Si ϒ .22 27 290 S S / F .023 ϒ 2015 7 S / F P ϒ .019 12 NORMALIZED 1600° F. S ROUND SECTION WITH SAME HARDNESS ROUND SECTION / F ϒ Mn .79 10 25 S / F C ϒ 1" 2" 3" 4" 5" 6" ~9" .42 5 55 SIXTEENTHS FROM QUENCHED END OF JOMINY BAR 1" 2" 3" 4" 5" 6" 7" HEAT TREATMENT HEAT

60 50 40 30 20 90 80 70 60