金属硬度与强度换算

金属硬度与强度换算

黑色金属硬度与强度换算（GB/T 1172-1999）

硬度抗拉强度σb/MPa

洛氏表面洛氏维氏布氏碳钢铬钢铬钡钢铬镍钢铬钼钢铬镍钼钢铬锰硅钢超高强度钢不锈钢不分钢种HRC HRA HR15N HR30N HR45N HV HB30D2 d10、2d5、4d2.5/mm

17 - 67.3 37.9 15.6 211 211 4.15 73.6 706 705 772 726 - 757 - 703 724

18 - 67.8 38.9 16.8 216 216 4.11 753 723 719 779 737 - 769 - 719 737

19 - 68.3 39.8 18 221 220 4.07 771 739 735 788 749 - 782 - 737 752

20 - 68.8 40.7 19.2 226 225 4.03 790 757 751 797 761 - 796 - 754 767

21 - 69.3 41.7 20.4 231 227 4 809 775 767 807 775 - 810 - 773 782

22 - 69.8 42.6 21.5 237 234 3.95 829 794 785 819 789 - 825 - 792 799

23 - 70.3 43.6 22.7 243 240 3.91 849 814 803 831 805 - 840 - 812 816

24 - 70.8 44.5 23.9 249 245 3.87 870 834 823 845 821 - 856 - 832 835

25 - 71.4 45.5 25.1 255 251 3.83 892 855 843 860 838 - 874 - 853 854

26 - 71.9 46.4 26.3 261 257 3.78 914 876 864 876 857 876 892 - 875 874

27 - 72.4 47.3 27.5 268 263 3.74 937 898 886 893 877 897 910 - 897 895

28 - 73 48.3 28.7 274 269 3.7 961 920 909 912 897 918 930 - 919 917

29 - 73.5 49.2 29.9 281 276 3.65 984 943 933 932 919 941 951 - 942 940

30 - 74.1 50.2 31.1 289 283 3.61 1009 967 959 953 943 966 973 - 966 904

31 - 74.7 51.1 32.3 296 291 3.56 1034 991 985 976 967 991 996 - 990 989

32 - 75.2 52 33.5 304 298 3.52 1060 1016 1013 1001 993 1018 1020 - 1015 1015

33 - 75.8 53 34.7 312 306 3.48 1086 1042 1042 1027 1020 1047 1046 - 1041 1042

34 - 76.4 53.9 25.9 320 314 3.43 1113 1068 1072 1054 1049 1077 1073 - 1067 1070

35 - 77 54.8 37 329 323 3.39 1141 1095 1104 1084 1079 1108 1101 - 1095 1100

36 - 77.5 55.8 38.2 338 332 3.34 1170 1124 1136 1115 1111 1141 1130 - 1126 1131

37 - 78.1 56.7 39.4 347 341 3.3 1200 1153 1171 1148 1144 1176 1161 - 1153 1163

38 - 78.7 57.6 40.6 357 350 3.26 1231 1184 1206 1132 1179 1212 1194 - 1184 1197

39 70 79.3 58.6 41.8 367 360 3.21 1263 1216 1243 1219 1216 1250 1228 1218 1216 1232

40 70.5 79.9 59.5 43 377 370 3.17 1296 1249 1282 1257 1254 1290 1264 1267 1250 1268

41 71.1 80.5 60.4 44.2 388 380 3.13 1331 1284 1322 1298 1294 1331 1302 1315 1286 1307

42 71.6 81.1 61.3 45.4 399 391 3.09 1367 1322 1364 1340 1336 1375 1342 1362 1325 1347

43 72.1 81.7 62.3 46.5 411 401 3.05 1405 1361 1407 1385 1379 1420 1384 1409 1366 1389

44 72.6 82.3 63.2 47.7 423 413 3.01 1445 1403 1452 1431 1425 1467 1427 1455 1410 1434

45 73.2 82.9 64.1 48.9 436 424 2.97 1488 1448 1498 1480 1472 1516 1474 1502 1457 1480

46 73.7 83.5 65 50.1 449 436 2.93 1533 1497 1547 1531 1522 1567 1522 1550 1508 1529

47 74.2 84 65.9 51.2 462 449 2.89 1581 1549 1597 1584 1573 1620 1573 1600 1563 1581

48 74.7 84.6 66.8 52.4 478 401 2.85 1631 1605 1649 1640 1626 1676 1627 1652 1623 1635

49 75.3 85.2 67.7 53.6 493 474 2.81 1686 1666 1702 1698 1682 1733 1683 1707 1688 1692

50 75.8 85.7 68.6 54.7 509 488 2.77 1744 1731 1758 1758 1739 1793 1742 1765 1759 1753

51 76.3 86.3 69.5 55.9 525 501 2.73 - 1803 1816 1821 1799 1854 1804 1827 - 1817

52 76.9 86.8 70.4 57.1 543 - - - 1881 1875 1887 1861 1918 1870 1894 - 1885

53 77.4 87.4 71.3 58.2 561 - - - - 1937 1955 1925 1985 1938 1967 - 1957

54 77.9 87.9 72.2 59.4 579 - - - - 2000 2025 - - 2010 2045 - 2034

55 78.5 88.4 73.1 60.5 599 - - - - 2066 2098 - - 2086 2131 - 2115

56 79 88.9 73.9 61.7 620 - - - - - - - - - 2224 - 2201

57 79.5 89.4 74.8 62.8 642 - - - - - - - - - 2324 - 2293

58 80.1 89.8 75.6 63.9 664 - - - - - - - - - 2437 - 2391

59 80.6 90.2 76.5 65.1 688 - - - - - - - - - 2558 - 2496

60 81.2 90.6 77.3 66.2 713 - - - - - - - - - 2691 - 2607

61 81.7 91 78.1 67.3 739 - - - - - - - - - - - -

62 82.2 91.4 79 68.4 766 - - - - - - - - - - - -