1、技术参数硬度换算表 (SAE J 417)*1983 年修订)钢的洛氏硬度 C 的近似换算值(1)(Hs)布氏硬度(HB)10mm球负载3000kgf洛氏硬度(3) 洛氏表面硬度金刚石圆锥压头(HRC)洛氏硬度 C(HV)维氏硬度 标准球碳化钨球(HRA)A 标度负载60kgf金刚石圆锥压头(HRB)B 标度负载100kgf直径1.6mm(1/16in)球(HRA)D 标度负载100kgf金刚石圆锥压头15N 标度负载15kgf30N 标度负载30kgf45N 标度负载45kgf肖氏硬度抗拉强度(近似值)MPa(kgf/mm2)(2)洛氏硬度C(3)68 940 85.6 76.9 93.2
2、84.4 75.4 97 6867 900 85.0 76.1 92.9 83.6 74.2 95 6766 865 84.5 75.4 92.5 82.8 73.3 92 6665 832 (739) 83.9 74.5 92.2 81.9 72.0 91 6564 800 (722) 83.4 73.8 91.8 81.1 71.0 88 6463 772 (705) 82.8 73.0 91.4 80.1 69.9 87 6362 746 (688) 82.3 72.2 91.1 79.3 68.8 85 6261 720 (670) 81.8 71.5 90.7 78.4 67.7 8
3、3 6160 697 (654) 81.2 70.7 90.2 77.5 66.6 81 6059 674 (634) 80.7 69.9 89.8 76.6 65.5 80 5958 653 615 80.1 69.2 89.3 75.7 64.3 78 5857 633 595 79.6 68.5 88.9 74.8 63.2 76 5756 613 577 79.0 67.7 88.3 73.9 62.0 75 5655 595 560 78.5 66.9 87.9 73.0 60.9 74 2075(212) 5554 577 543 78.0 66.1 87.4 72.0 59.8
4、72 2015(205) 5453 560 525 77.4 65.4 86.9 71.2 58.6 71 1950(199) 5352 544 (500) 512 76.8 64.6 86.4 70.2 57.4 69 1880(192) 5251 528 (487) 496 76.3 63.8 85.9 69.4 56.1 68 1820(186) 5150 513 (475) 481 75.9 63.1 85.5 68.5 55.0 67 1760(179) 5049 498 (464) 469 75.2 62.1 85.0 67.6 53.8 66 1695(173) 4948 484
5、 451 455 74.7 61.4 84.5 66.7 52.5 64 1635(167) 4847 471 442 443 74.1 60.8 83.9 65.8 51.4 63 1580(161) 4746 458 432 432 73.6 60.0 83.5 64.8 50.3 62 1530(156) 4645 446 421 421 73.1 59.2 83.0 64.0 49.0 60 1480(151) 4544 434 409 409 72.5 58.5 82.5 63.1 47.8 58 1435(146) 4443 423 400 400 72.0 57.7 82.0 6
6、2.2 46.7 57 1385(141) 4342 412 390 390 71.5 56.9 81.5 61.3 45.5 56 1340(136) 4241 402 381 381 70.9 56.2 80.9 60.4 44.3 55 1295(132) 4140 392 371 371 70.4 55.4 80.4 59.5 43.1 54 1250(127) 4039 382 362 362 69.9 54.6 79.9 58.6 41.9 52 1215(124) 3938 372 353 353 69.4 53.8 79.4 57.7 40.8 51 1180(120) 383
7、7 363 344 344 68.9 53.1 78.8 56.8 39.6 50 1160(118) 3736 354 336 336 68.4 (109.0 52.3 78.3 55.9 38.4 49 1115(114) 36)35 345 327 327 67.9 (108.5) 51.5 77.7 55.0 37.2 48 1080(110) 3534 336 319 319 67.4 (108.0) 50.8 77.2 54.2 36.1 47 1055(108) 3433 327 311 311 66.8 (107.5) 50.0 76.6 53.3 34.9 46 1025(1
8、05) 3332 318 301 301 66.3 (107.0) 49.2 76.1 52.1 33.7 44 1000(102) 3231 310 294 294 65.8 (106.0) 48.4 75.6 51.3 32.7 43 980(100) 3130 302 286 286 65.3 (105.5) 47.7 75.0 50.4 31.3 42 950 (97) 3029 294 279 279 64.7 (104.5) 47.0 74.5 49.5 30.1 41 930 (95) 2928 286 271 271 64.3 (104.0) 46.1 73.9 48.6 28
9、.9 41 910 (93) 2827 279 264 264 63.8 (103.0) 45.2 73.3 47.7 27.8 40 880 (90) 2726 272 258 258 63.3 (102.5) 44.6 72.8 46.8 26.7 38 860 (88) 2625 266 253 253 62.8 (101.5) 43.8 72.2 45.9 25.5 38 840 (86) 2524 260 247 247 62.4 (101.0) 43.1 71.6 45.0 24.3 37 825 (84) 2423 254 243 243 62.0 100.0 42.1 71.0
10、 44.0 23.1 36 805 (82) 2322 248 237 237 61.5 99.0 41.6 70.5 43.2 22.0 35 785 (80) 2221 243 231 231 61.0 98.5 40.9 69.9 42.3 20.7 35 770 (79) 2120 238 226 226 60.5 97.8 40.1 69.4 41.5 19.6 34 760 (77) 20(18) 230 219 219 96.7 33 730 (75) (18)(16) 222 212 212 95.5 32 705 (72) (16)(14) 213 203 203 93.9
11、31 675 (69) (14)(12) 204 194 194 92.3 29 650 (66) (12)(10) 196 187 187 90.7 28 620 (63) (10)(8) 188 179 179 89.5 27 600 (61) (8)(6) 180 171 171 87.1 26 580 (59) (6)(4) 173 165 165 85.5 25 550 (56) (4)(2) 166 158 158 83.5 24 530 (54) (2)(0) 160 152 152 81.7 24 515 (53) (0)注(1)蓝色的数字参见 ASTM E 140 表 1(由 SAE、ASM、ASTM 合并调整而成)(2)带() 的单位及数值为通过 JIS Z 8413 及 Z 8438 换算表从 psi 换算而得。 1MPa1N/mm 2 (3)表中括号( )中的数字很少使用，仅供参考。
