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DEPARTMENT OF COMMERCE BUREAU OF STANDARDS CIRCULAR OF THE BUREAU OF STANDARDS, No. 101 PHYSICAL PROPERTIES OF MATERIALS I. STRENGTHS AND RELATED PROPERTIES OF METALS AND WOOD (Second Edition) April 23, 1924 WASHINGTON GOVERNMENT PRINTING OFFICE 1924 of left upper the in shown laboratories Standards. of industrial Bureau the the in of made are illustration. Laboratories woods this and Technical metals of 101 and properties No. Scientific Standards, physical of the on Bureau the Investigations of Circular DEPARTMENT OF COMMERCE BUREAU OF STANDARDS George K. Burgess, Director CIRCULAR OF THE BUREAU OF STANDARDS, No. 101 PHYSICAL PROPERTIES OF MATERIALS I. STRENGTHS AND RELATED PROPERTIES OF METALS AND WOOD (Second Edition) April 23, 1924 PRICE, 40 CENTS Sold only by the Superintendent of Documents, Government Printing Office Washington, D. C. WASHINGTON GOVERNMENT PRINTING OFFICE 1924 PHYSICAL PROPERTIES OF MATERIALS. I. STRENGTH AND RELATED PROPERTIES OF METALS AND WOOD. ABSTRACT. This circular contains the values for tensile, compressive, and shearing strengths; ductility; modulus of elasticity; and other related properties of pure metals and their alloys and of wood. In addition to these the properties of metals at elevated temperatures, their fatigue and impact properties, and the effect of heat treatment and cold working are given. Other properties and uses of less commonly used metals are described briefly. Graphical representation is used in many cases to show the change of the properties of a material with changing conditions. References to the sources are given for all values in this circular. I. Introduction 8 II. Scope of the work 8 III. Sources of included data 8 IV. Acknowledgments 9 V. Test specimens and conditions VI. Definitions i. Proportional limit 2. Elastic limit n 3. Yield point 11 4. Tensile, compressive, or shearing strength 11 5. Modulus of rupture 11 6. Torsional strength (or modulus of rupture in torsion) 11 7. Elongation 12 8. Reduction 12 9. Poisson’s ratio 12 10. Modulus of elasticity in tension or compression 12 11. Modulus of elasticity in shear 12 12. Brinell hardness number 12 13. Shore scleroscope hardness 13 14. Erichsen value 13 15. Bend test 13 16. Impact value 13 17. Fatigue resistance 14 18. Resilience 14 19. Ductile materials 14 20. Plastic materials 14 21. Malleable materials 14 22. Brittle materials 14 23. Stiff materials 14 24. Flexible materials 15 25. Tough materials 15 26. Soft materials 15 27. Hard materials 15 VII. Texts on strength of materials 15 VIII. Physical properties of metals (Tables ito42) 16 IX. Nomenclature of copper alloys 37 3 11 4 Circular of the Bureau of Standards . Page. Iron specifications X. and steel 77 XI. Alloy steels xoi XII. Fatigue properties of steel 139 XIII. Manila rope i6g XIV. Wood I70 List of references 194 Index 199 TABLES. Table 1. —Tensile and thermal properties of metals 16 Table 2.—Tensile properties of sheet aluminum 18 Table 3.—Ductility and hardness of sheet aluminum 18 Table 4.—Tensile requirements of soft and annealed copper wire 35 Table 5. —Tensile requirements of medium hard-drawn copper wire 35 Table 6.—Tensile requirements of hard-drawn and hard-rolled copper wire 36 Table 7. —Tensile requirements of copper plates 36 Table 8.—Tensile requirements of rolled copper 36 Table 9. —Classification of ferrous metals in principal European languages 74 Table 10. —Properties of semisteel 85 Table 11. —Tensile strength of commercial steel music wire 98 Table 12.—Properties of high tensile steel wire 98 Table 13. —Tensile requirements of steel wire rope 99 Table 14. —Tensile strength of steel wire rope ior Table 15. —Effect of heat treatment on properties of chromium steels 105 Table 16. —Correlation between the tensile strength of steel and its hardness 136 Table 17. —Impact properties of some metals 137 Table 18.—Impact properties of carbon steels 137 Table 19. —Effect of low temperatures on hardness and impact resistance of metals 138 Table 20. —Effect of temperature on the impact resistance of annealed steels (chemical composition of tested steels) 139 Table 21. —Fatigue properties of manganese and aluminum bronze (chemical composition of tested samples) 139 Table 22. —Fatigue properties of carbon and alloy steels (chemical composition and heat treatment of tested steels) 142 Table 23.—Effect of high temperature on the tensile properties of cast iron (chemical com- position of tested materials) 145 Table 24.—Effect of high temperature on the tensile strength of cast iron 146 Table 25.—Effect of repeated heating and cooling on tensile strength of cast iron 146 Table 26. —Effect of temperature on the tensile properties of some metals (chemical com- position of tested metals) 146 Table 27. —Effect of temperature on torsional properties of some metals (chemical compo- sition of tested metals) 148 Table 28. —Effect of temperature on the tensile properties of some metals 149 Table 29.—Effect of temperature on the tensile strength of high-speed steel 151 Table 30.—Flow of steels under constant load at high temperatures 15 Table 31. —Flow of steels under constant load at high temperatures (chemical composition and heat treatment of tested steels) 152 Table 32. —Tensile strength of steels at elevated temperatures under rapidly applied load . 159 Table 33.—Tensile properties of molybdenum wire at high temperatures 160 Table 34.—Tensile properties of nickel wire at high temperatures 161 Table 35. —Compression tests of some steels at high temperatures (chemical composition of tested steels) 16 Table 36. —Compression tests of white metal bearing alloys at elevated temperatures 165 Table 37. —Chemical composition of white-metal bearing alloys 165 Table 38. —Tensile properties of some bearing alloys at elevated temperature 165 Physical Properties Materials of . 5 Page. Table 39.—Elasticity at high temperatures (chemical composition of tested metals) 165 Table 40.—Elasticity at low temperatures 167 Table 41.—Effect of temperature on modulus of elasticity of annealed metals 167 Table 42. —Effect of annealing temperature on elastic properties of cold-rolled brass tubes. 168 Table 43.—Weight and strength of manila rope 169 Table 44.—Strength of manila rope 169 Table 45.—Results of tests on 126 species of wood tested in a green condition 172 Table 46.—Results of tests on 126 species of wood tested in an air-dry condition 184 Table 47.—Approximate figures for change of properties of woods with change of moisture content 194 ILLUSTRATIONS. Fig. 1. —Standard specimens used and recommended by the structural and engineering mechanics section, Bureau of Standards 10 Fig. 2.—Effect of temperature on the tensile properties of ahiminum 18 Fig. 3.—The tensile properties of aluminum-copper sand-cast alloys 30 Fig. 4. —The tensile properties of aluminum-copper chill-cast alloys 30 Fig. 5. —The tensile properties of aluminum-copper alloys in the form of sheet 0.05-inch (1.27 mm) thick 30 Fig. 6. —The tensile properties of aluminum-copper alloys; i-|-inch (31.7 mm) diameter bars hot rolled from 3-inch (76.2 mm) ingots 30 Fig. 7. —Variation of the tensile properties of duralumin with temperature 30 Fig. 8. —Effect of annealing on the tensile properties of duralumin 30 Fig. 9. —Effect of cold working on the tensile properties of duralumin 31 Fig. ro. —The tensile properties of aluminum-zinc sand-cast alloys 31 Fig. 11.—The tensile properties of aluminum-zinc chill-cast alloys 31 Fig. 12.—The tensile properties of aluminum-zinc alloys; i^-inch (31.7 mm) diameter bars hot rolled from 3-inch (76.2 mm) ingots 31 Fig. 13.—Effect of high temperatures on the tensile properties of copper 31 Fig. 14.—Fatigue properties of aluminum and manganese bronzes 37 Fig. 15.—Correlation between the heat treatment and the tensile properties of nickel-silvers . 66 Fig. 16. —Correlation between the heat treatment and the tensile properties of nickel-silvers . 67 Fig. 17. —Effect of drawing temperature on the tensile properties of steel 79 Fig. 18.—Effect of drawing temperature on the tensile properties of steel 80 Fig. 19.—Effect of drawing temperature on the tensile properties of steel 80 Fig. 20.—Effect of drawing temperature on the tensile properties of steel 81 Fig. 21. —Effect of drawing temperature on the tensile properties of steel 81 Fig. 22. —Effect of drawing temperature on the tensile properties of steel 82 Fig. 23.—Effect of drawing temperature on the tensile properties of steel 82 Fig. 24.—Effect of drawing temperature on the tensile properties of steel 83 Fig. 25.—Effect of drawing temperature on the tensile properties of steel 83 Fig. 26. —Effect of carbon content on the strength of Bessemer steel 93 Fig. 27. —Effect of carbon content on the mechanical properties of hot rolled and annealed steel . 93 Fig. 28.—Effect of drawing temperature on the tensile properties of stainless steel no Fig. 29. —Effect of drawing temperature on the tensile properties of chrome-vanadium steel . no Fig. 30. —Effect of drawing temperature on the tensile properties of chrome-nickel steel in Fig. 31. —Effect of drawing temperature on the tensile properties of nickel steel in Fig. 32. —Effect of drawing temperature on the tensile properties of tungsten steel 120 Fig. 33.—Fatigue properties of carbon and alloy steels 140 Fig. 34. —Fatigue properties of carbon and alloy steels compared with other properties 140 Fig. 35.—Fatigue properties of carbon and alloy steels compared with other properties 141 Fig. 36.—Correlation between the endurance limit and other properties of steels 143 Fig. 37. —Correlation between the endurance limit and the tensile properties of steels 144 . 6 Circular of the Bureau of Standards Page. Fig. 38. —Tensile properties of cold-rolled boiler plate at elevated temperatures 147 Fig. 39.—Tensile properties of hot-rolled boiler plate at elevated temperatures 147 Fig.
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