SSS SABEN STEEL 1.2210 PRECISION GROUND DOWELL ROD B.S.1407 WERKSTOFF No

C Si Mn Cr Mo W V Co 1.20 0.40 0.40

Features and Uses Applications include Temper according to the Saben Silver Steel is bright screwdrivers, punches, shafts, purpose for which the parts are finished rod produced from hot axles, pinions, pins, die posts, required generally between rolled bar by means of instrument parts, model parts, 150 / 300ºC centreless grinding. taps and drills for mild steel, The high content of this engravers tools, and fine Rockwell C Temperature steel means that it can be cutters. 63/65 as quenched hardened to give considerable 63/65 120ºC wear resistance and the Hardening 64/62 150ºC content adds to the 62/61 200ºC strength and hardenability It is preferable to heat the tools 59/58 250ºC As supplied however, the steel in a controlled atmosphere. If 56/55 300ºC is machinable owing to the this is not possible, pack 54/53 350ºC annealing treatment given to it hardening is recommended. A 50/48 400ºC prior to grinding. reducing atmosphere is Saben silver steel is spherodise desirable. annealed for best machinability, the annealed STOCK SIZES DIA Heat to 770 / 780ºC and when 2 mm 15 1/16” hardness being in the region of thoroughly soaked through, 2.5 16 3/32” 270 Brinell (Rockwell C27). quench in water. (sizes up to 8 3 17 1/8” On hardening and tempering a mm diameter may be oil 3.5 18 5/32” hardness of up to Rockwell hardened from 800 / 810ºC) C64 can be obtained. Being in Tempering will be necessary. 4 19 3/16” the spherodised condition, the 4.5 20 7/32” material offers maximum 5 21 1/4" response to hardening and the Tolerances 5.5 22 5/16” chromium content ensures 6 23 3/8” deep hardening. B.S. 1407/1959 conforms 6.5 24 7/16” with I.S.O. H8 7 25 1/2" Up to and including 3mm 7.5 26 9/16” Applications +0.00 – 0.014 mm 8 27 5/8” Over 3mm and including 6mm 8.5 28 3/4" Saben silver steel finds +0.00 – 0.018 mm 9 29 13/16” innumerable uses in the tool 6mm and including 10 mm 9.5 30 7/8” room and in general +0.00 – 0.022 mm 10 35 15/16” engineering. The user can 10mm and including 18 mm 11 40 1” select a size suitable for his +0.00 – 0.027 mm 12 45 1/4" purpose, thereby reducing or 18mm and including 30 mm 13 50 1.1/2 eliminating the need for +0.00 – 0.033 mm 14 grinding or machining the 30mm and including 50 mm Non standard sizes available finished part. +0.00 – 0.039 mm in +/- 10 working days