Machinery's Handbook, 31st Edition
426
Mechanical Properties of Steels Table 11b. Typical Mechanical Properties of Selected Carbon and Alloy Steels (Hot Rolled, Normalized, and Annealed)
Table 11b. (Continued) Typical Mechanical Properties of Selected Carbon and
Tensile Strength
Tempering Temperature, ° F
Reduction in Area, Percent
AISI No. a 8630
Ultimate
Yield
Elongation, Percent
Hardness, BHN
1000 lb/in 2
400 600 800
238 215 185 150 112 270 240 200 160 130 287 246 200 160 131 281 250 210 170 140 237 190 155 290 … … 249 208 175 143 305 281 233 182 144 255 192 142 250 232 195 145 120 … …
218 202 170 130 100 242 220 188 150 116 238 225 191 150 127 243 225 192 153 120 225 176 138 240 … … 225 197 165 131 297 260 216 160 118 218 164 118 225 206 175 135 105 … …
9
38 42 47 54 63 40 41 45 54 62 31 40 41 49 58 38 40 45 51 58 … … 37 46 53 41 46 50 55 60 10 22 32 42 … … 24 30 43 46 49 57 65 69 3
465 430 375 310 240 505 460 400 340 280 525 475 395 335 280 525 490 420 340 280 580 535 460 370 315 578 495 415 363 302 601 578 477 352 285 600 540 470 390 295 475 445 382 307
10 13 17 23 10 10 12 16 20 11 15 19 10 10 12 15 20 … … 13 17 20 10 11 13 9 9 15 20
1000 1200 400 600 800 1000 1200 400 1000 1200 400 600 800 1000 1200 400 600 800 1000 1200 400 600 800 1000 1200 400 1000 1200 400 600 800 1000 1200 400 600 800 600 800
8640
86B45
8650
8660
8740
9255
1 4 8
15 20 … … 12 20 12 12 8 13 16 21
9260
94B30
600 800
1000 1200
250 a All grades are fine-grained except those in the 1100 series that are coarse-grained. Austenitizing temperatures are given in parentheses. Heat-treated specimens were oil-quenched unless otherwise indicated. b Water quenched. Source: Bethlehem Steel Corp. and Republic Steel Corp. as published in 1974 DATABOOK issue of the American Society for Metals’ Metal Progress magazine and used with permission.
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