(Part A) Machinerys Handbook 31st Edition Pages 1-1484

Table 10. Expected Minimum Mechanical Properties of Cold-Drawn Carbon-Steel Rounds, Squares, and Hexagons Table 10. (Continued) Expected Minimum Mechanical Properties of Cold-Drawn Carbon-Steel Rounds, Squares, and Hexagons

Cold-Drawn Followed by Low-Temperature Stress Relief

Cold-Drawn Followed by High-Temperature Stress Relief

As Cold-Drawn

Size, in.

Tensile Strength Elongation in 2 inches, Percent Ultimate Yield 1000 lb/in 2

Reduction in Area, Percent

Hardness, BHN

AISI 1045, 1145, and 1146 Steels

95 85 90 80 85 75 80 70 100 90 95 85 90 80 85 75 105 95 100 90 95 85 90 80 110 100 105 95 100 90

12 11 10 10 11 11 10 10 11 10 10 10 10 10 10

35 30 30 30 35 30 30 30 30 30 30 20 30 30 25

187 179 170 163 197 187 179 170 212 197 187 179 223 212 197

100 90 95 85 90 80 85 75 105 95 100 90 95 85 90 80 110 100 105 95 100 90

12 11 10 10 11 11 10 10 11 10 10 10 10 10 10 10

35 30 30 25 35 30 30 25 30 30 25 20 30 30 25

197 187 179 170 212 197 187 179 223 212 197 187 229 223 212

90 70 85 70 80 65 75 60 95 75 90 75 85 70 80 65 100 80 95 80 90 75 85 70 105 85 100 85 95 80

15 15 15 12 15 15 15 12 15 15 15 12 15 15 15

45 45 40 35 45 40 40 35 40 40 40 30 40 40 35

179 170 163 149 187 179 170 163 197 187 179 170 212 197 187

5 ⁄ 8 - 7 ⁄ 8

Over 7 ⁄ 8 -1 1 ⁄ 4 Over 1 1 ⁄ 4 -2 Over 2-3

AISI 1050, 1137, and 1151 Steels

5 ⁄ 8 - 7 ⁄ 8

Over 7 ⁄ 8 -1 1 ⁄ 4 Over 1 1 ⁄ 4 -2 Over 2-3

AISI 1141 Steel

5 ⁄ 8 - 7 ⁄ 8

Over 7 ⁄ 8 -1 1 ⁄ 4 Over 1 1 ⁄ 4 -2 Over 2-3

AISI 1144 Steel

115 105 110 100 105 95 100 90

5 ⁄ 8 - 7 ⁄ 8

Over 7 ⁄ 8 -1 1 ⁄ 4 Over 1 1 ⁄ 4 -2 Over 2-3

95 85 179 Source: AISI Committee of Hot-Rolled and Cold-Finished Bar Producers and published in 1974 DATABOOK issue of the American Society for Metals’ Metal Progress magazine and used with permission. 10 20 187 20 197 90 75 12 30

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