Ferrous metal hardness and strength conversion value

2019-11-18 15:02:19

Ferrous metals hardness and strength values in terms of
hardness
Rockwell		Surface Rockwell			Vickers	Brinell (F/D2=30)
HRC	HRA	HR15N	HR30N	HR45N	HV	HBS	HBW
20.0 20.5 21.0 21.5 22.0 22.5 23.0 23.5 24.0 24.5 25.0 25.5 26.0 26.5 27.0 27.5 28.0 28.5 29.0 29.5 30.0 30.5 31.0 31.5 32.0 32.5 33.0 33.5 34.0 34.5	60.2 60.4 60.7 61.0 61.2 61.5 61.7 62.0 62.2 62.5 62.8 63.0 63.3 63.5 63.8 64.0 64.3 64.6 64.8 65.1 65.3 65.6 65.8 66.1 66.4 66.6 66.9 67.1 67.4 67.7	68.8 69.0 69.3 69.5 69.8 70.0 70.3 70.6 70.8 71.1 71.4 71.6 71.9 72.2 72.4 72.7 73.0 73.3 73.5 73.8 74.1 74.4 74.7 74.9 75.2 75.5 75.8 76.1 76.4 76.7	40.7 41.2 41.7 42.2 42.6 43.1 43.6 44.0 44.5 45.0 45.5 45.9 46.4 46.9 47.3 47.8 48.3 48.7 49.2 49.7 50.2 50.6 51.1 51.6 52.0 52.5 53.0 53.4 53.9 54.4	19.2 19.8 20.4 21.0 21.5 22.1 22.7 23.3 23.9 24.5 25.1 25.7 26.3 26.9 27.5 28.1 28.7 29.3 29.9 30.5 31.1 31.7 32.3 32.9 33.5 34.1 34.7 35.3 35.9 36.5	226 228 230 233 235 238 241 244 247 250 253 256 259 262 266 269 273 276 280 284 288 292 296 300 304 308 313 317 321 326	225 227 229 232 234 237 240 242 245 248 251 254 257 260 263 266 269 273 276 280 283 287 291 294 298 302 306 310 314 318

(Applicable to steel grades with low to high carbon content)

Tensile strength Ã³b/MPa
Carbon steel	Chrome steel	Chrome vanadium steel	Chrome nickel steel	Chrome molybdenum steel	Chrome nickel molybdenum steel	Chromium manganese silicon steel	Ultra high strength steel	stainless steel
774 784 793 803 813 823 833 843 854 864 875 886 897 908 919 930 942 954 965 977 989 1002 1014 1027 1039 1052 1065 1078 1092 1105	742 751 760 769 779 788 798 808 818 828 838 848 859 870 880 891 902 914 925 937 948 960 972 984 996 1009 1022 1034 1048 1061	736 744 753 761 770 779 788 797 807 816 826 837 847 858 869 880 892 903 915 928 940 953 966 980 993 1007 1022 1036 1051 1067	782 787 792 797 803 809 815 822 829 836 843 851 859 867 876 885 894 904 914 924 935 946 957 969 981 994 1007 1020 1034 1048	747 753 760 767 774 781 789 797 805 813 822 831 840 850 860 870 880 891 902 913 924 936 948 961 974 987 1001 1015 1029 1043	850 859 869 879 890 901 912 923 935 947 959 972 985 999 1012 1027 1041 1056 1071	781 788 794 801 809 816 824 832 840 848 856 865 874 883 893 902 912 922 933 943 954 965 977 989 1001 1013 1026 1039 1052 1066		740 749 758 767 777 786 796 806 816 826 837 847 858 868 879 890 901 913 924 936 947 959 971 983 996 1008 1021 1034 1047 1060

hardness
Rockwell		Surface Rockwell			Vickers	Brinell (F/D ² = 30)
HRC	HRA	HR15N	HR30N	HR45N	HV	HBS	HBW
35.0 35.5 36.0 36.5 37.0 37.5 38.0 38.5 39.0 39.5 40.0 40.5 41.0 41.5 42.0 42.5 43.0 43.5 44.0 44.5 45.0 45.5 46.0 46.5 47.0 47.5 48.0 48.5 49.0 49.5 50.0 50.5 51.0	67.9 68.2 68.4 68.7 69.0 69.2 69.5 69.7 70.0 70.3 70.5 70.8 71.1 71.3 71.6 71.8 72.1 72.4 72.6 72.9 73.2 73.4 73.7 73.9 74.2 74.5 74.7 75.0 75.3 75.5 75.8 76.1 76.3	77.0 77.2 77.5 77.8 78.1 78.4 78.7 79.0 79.3 79.6 79.9 80.2 80.5 80.8 81.1 81.4 81.7 82.0 82.3 82.6 82.9 83.2 83.5 83.7 84.0 84.3 84.6 84.9 85.2 85.5 85.7 86.0 86.3	54.8 55.3 55.8 56.2 56.7 57.2 57.6 58.1 58.6 59.0 59.5 60.0 60.4 60.9 61.3 61.8 62.3 62.7 63.2 63.6 64.1 64.6 65.0 65.5 65.9 66.4 66.8 67.3 67.7 68.2 68.6 69.1 69.5	37.0 37.6 38.2 38.8 39.4 40.0 40.6 41.2 41.8 42.4 43.0 43.6 44.2 44.8 45.4 45.9 46.5 47.1 47.7 48.3 48.9 49.5 50.1 50.7 51.2 51.8 52.4 53.0 53.6 54.2 54.7 55.3 55.9	331 335 340 345 350 355 360 365 371 376 381 387 393 398 404 410 416 422 428 435 441 448 454 461 468 475 482 489 497 504 512 520 527	323 327 332 336 341 345 350 355 360 365 370 375 380 385 391 396 401 407 413 418 424 430 436 442 449	370 375 381 386 392 397 403 409 415 422 428 435 441 448 455 463 470 478 486 494 502 510 518

Tensile strength Ã³b/MPa
Carbon steel	Chrome steel	Chrome vanadium steel	Chrome nickel steel	Chrome-molybdenum steel	Chrome nickel molybdenum steel	Chromium manganese silicon steel	Ultra high strength steel	stainless steel
1119 1133 1147 1162 1177 1192 1207 1222 1238 1254 1271 1288 1305 1322 1340 1359 1378 1397 1417 1438 1459 1481 1503 1526 1550 1575 1600 1626 1653 1681 1710	1074 1088 1102 1116 1131 1146 1161 1176 1192 1208 1225 1242 1260 1278 1296 1315 1335 1355 1376 1398 1420 1444 1468 1493 1519 1546 1574 1603 1633 1665 1698 1732 1768	1082 1098 1114 1131 1148 1165 1183 1201 1219 1238 1257 1276 1296 1317 1337 1358 1380 1401 1424 1446 1469 1493 1517 1541 1566 1591 1617 1643 1670 1697 1724 1752 1780	1063 1078 1093 1109 1125 1142 1159 1177 1195 1214 1233 1252 1273 1293 1314 1336 1358 1380 1404 1427 1451 1476 1502 1527 1554 1581 1608 1636 1665 1695 1724 1755 1786	1058 1074 1090 1106 1122 1139 1157 1174 1192 1211 1230 1249 1269 1289 1310 1331 1353 1375 1397 1420 1444 1468 1492 1517 1542 1568 1595 1622 1649 1677 1706 1735 1764	1087 1103 1119 1136 1153 1171 1189 1207 1226 1245 1265 1285 1306 1327 1348 1370 1392 1415 1439 1462 1487 1512 1537 1563 1589 1616 1643 1671 1699 1728 1758 1788 1819	1079 1094 1108 1123 1139 1155 1171 1187 1204 1222 1240 1258 1277 1296 1316 1336 1357 1378 1400 1422 1445 1469 1493 1517 1543 1569 1595 1623 1651 1679 1709 1739 1770	1170 1195 1219 1243 1267 1290 1313 1336 1359 1381 1404 1427 1450 1473 1496 1520 1544 1569 1594 1620 1646 1674 1702 1731 1761 1792	1074 1087 1101 1116 1130 1145 1161 1176 1193 1209 1226 1244 1262 1280 1299 1319 1339 1361 1383 1405 1429 1453 1479 1505 1533 1562 1592 1623 1655 1689 1725

hardness
Rockwell		Surface Rockwell			Vickers	Brinell (F/D ² = 30)
HRC	HRA	HR15N	HR30N	HR45N	HV	HBS	HBW
51.5 52.0 52.5 53.0 53.5 54.0 54.5 55.0 55.5 56.0 56.5 57.0 57.5 58.0 58.5 59.0 59.5 60.0 60.5 61.0 61.5 62.0 62.5 63.0 63.5 64.0 64.5 65.0 65.5 66.0 66.5 67.0 67.5 68.0	76.6 76.9 77.1 77.4 77.7 77.9 78.2 78.5 78.7 79.0 79.3 79.5 79.8 80.1 80.3 80.6 80.9 81.2 81.4 81.7 82.0 82.2 82.5 82.8 83.1 83.3 83.6 83.9 84.1 84.4 84.7 85.0 85.2 85.5	86.6 86.8 87.1 87.4 87.6 87.9 88.1 88.4 88.6 88.9 89.1 89.4 89,6 89.8 90.0 90.2 90.4 90.6 90.8 91.0 91.2 91.4 91.5 91.7 91.8 91.9 92.1 92.2	70.0 70.4 70.9 71.3 71.8 72.2 72.6 73.1 73.5 73.9 74.4 74.8 75.2 75.6 76.1 76.5 76.9 77.3 77.7 78.1 78.6 79.0 79.4 79.8 80.2 80.6 81.0 81.3	56.5 57.1 57.6 58.2 58.8 59.4 59.9 60.5 61.1 61.7 62.2 62.8 63.4 63.9 64.5 65.1 65.6 66.2 66.8 67.3 67.9 68.4 69.0 69.5 70.1 70.6 71.2 71.7	535 544 552 561 569 578 587 596 606 615 625 635 645 655 666 676 687 698 710 721 733 745 757 770 782 795 809 822 836 850 865 586 894 909		527 535 544 552 561 569 577 585 593 601 608 616 622 628 634 639 643 647 650

Tensile strength Ã³b/MPa
Carbon steel	Chrome steel	Chrome vanadium steel	Chrome nickel steel	Chrome-molybdenum steel	Chrome nickel molybdenum steel	Chromium manganese silicon steel	Ultra high strength steel	stainless steel
	1806 1845	1809 1839 1869 1899 1930 1961 1993 2026	1818 1850 1883 1917 1951 1986 2022 2058	1794 1825 1856 1888	1850 1881 1914 1947	1801 1834 1867 1901 1936 1971 2008 2045	1824 1857 1892 1929 1966 2006 2047 2090 2135 2181 2230 2281 2334 2390 2448 2509 2572 2639

Schedule 4 ferrous metal hardness and strength conversion value (mainly suitable for low carbon steel)
hardness							Tensile strength Ã³b/MPa
Rockwell	Surface Rockwell			Vickers	Brinell
HRB	HR15T	HR30T	HR45T	HV	HBS
					F/D2=10	F/D2=30
60.0 60.5 61.0 61.5 62.0 62.5 63.0 63.5 64.0 64.5 65.0 65.5 66.0 66.5 67.0 67.5 68.0 68.5 69.0 69.5 70.0 70.5 71.0 71.5 72.0 72.5 73.0 73.5 74.0 74.5	80.4 80.5 80.7 80.8 80.9 81.1 81.2 81.4 81.5 81.6 81.8 81.9 82.1 82.2 82.3 82.5 82.6 82.7 82.9 83.0 83.2 83.3 83.4 83.6 83.7 83.9 84.0 84.1 84.3 84.4	56.1 56.4 56.7 57.1 57.4 57.7 58.0 58.3 58.7 59.0 59.3 59.6 59.9 60.3 60.6 60.9 61.2 61.5 61.9 62.2 62.5 62.8 63.1 63.5 63.8 64.1 64.4 64.7 65.1 65.4	30.4 30.9 31.4 31.9 32.4 32.9 33.5 34.0 34.5 35.0 35.5 36.1 36.6 37.1 37.6 38.1 38.6 39.2 39.7 40.2 40.7 41.2 41.7 42.3 42.8 43.3 43.8 44.3 44.8 45.4	105 105 106 107 108 108 109 110 110 111 112 113 114 115 115 116 117 118 119 120 121 122 123 124 125 126 128 129 130 131	102 102 103 103 104 104 105 105 106 106 107 107 108 108 109 110 110 111 112 112 113 114 115 115 116 117 118 119 120 121		375 377 379 381 382 384 386 388 390 393 395 397 399 402 404 407 409 412 415 418 421 424 427 430 433 437 440 444 447 451

hardness							Tensile strength Ã³b/MPa
Rockwell	Surface Rockwell			Vickers	Brinell
HRB	HR15T	HR30T	HR45T	HV	HBS
					F/D2=10	F/D2=30
75.0 75.5 76.0 76.5 77.0 77.5 78.0 78.5 79.0 79.5 80.0 80.5 81.0 81.5 82.0 82.5 83.0 83.5 84.0 84.5 85.0 85.5 86.0 86.5 87.0 87.5 88.0 88.5 89.0 89.5	84.5 84.7 84.8 85.0 85.1 85.2 85.4 85.5 85.7 85.8 85.9 86.1 86.2 86.3 86.5 86.6 86.8 86.9 87.0 87.2 87.3 87.5 87.6 87.7 87.9 88.0 88.1 88.3 88.4 88.6	65.7 66.0 66.3 66.6 67.0 67.3 67.6 67.9 68.2 68.6 68.9 69.2 69.5 69.8 70.2 70.5 70.8 71.1 71.4 71.8 72.1 72.4 72.7 73.0 73.4 73.7 74.0 74.3 74.6 75.0	45.9 46.4 46.9 47.4 47.9 48.5 49.0 49.5 50.0 50.5 51.0 51.6 52.1 52.6 53.1 53.6 54.1 54.7 55.2 55.7 56.2 56.7 57.2 57.8 58.3 58.8 59.3 59.8 60.3 60.9	132 134 135 136 138 139 140 142 143 145 146 148 149 151 152 154 156 157 159 161 163 165 166 168 170 172 174 176 178 180	122 123 124 125 126 127 128 129 130 132 133 134 136 137 138 140	152 155 156 158 159 161 163 164 166 168 170 172 174	455 459 463 467 471 475 480 484 489 493 498 503 508 513 518 523 529 534 540 546 551 557 563 570 576 582 589 596 603 609

hardness							Tensile strength Ã³b/MPa
Rockwell	Surface Rockwell			Vickers	Brinell
HRB	HR15T	HR30T	HR45T	HV	HBS
					F/D2=10	F/D2=30
90.0 90.5 91.0 91.5 92.0 92.5 93.0 93.5 94.0 94.5 95.5 95.0 96.0 96.5 97.0 97.5 98.0 98.5 99.0 99.5 100.0	88.7 88.8 89.0 89.1 89.3 89.4 89.5 89.7 89.8 89.9 90.1 90.2 90.4 90.5 90.6 90.8 90.9 91.1 91.2 91.3 91.5	75.3 75.6 75.9 76.2 76.6 76.9 77.2 77.5 77.8 78.2 78.5 78.8 79.1 79.4 79.8 80.1 80.4 80.7 81.0 81.4 81.7	61.4 61.9 62.4 62.9 63.4 64.0 64.5 65.0 65.5 66.0 66.5 67.1 67.6 68.1 68.6 69.1 69.6 70.2 70.7 71.2 71.7	183 185 187 189 191 194 196 199 201 203 206 208 211 214 216 219 222 225 227 230 233		176 178 180 182 184 187 189 192 195 197 200 203 206 209 212 215 218 222 226 229 232	617 624 631 639 646 654 662 670 678 686 695 703 712 721 730 739 749 758 768 778 788

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