The below hardness conversion table for steel shows approximate material specific comparison hardness of steel using Brinell, Rockwell B and C and Vickers scales. This hardness conversion chart is provided for guidance only as each scales uses different methods of measuring hardness. Due to the wide range of variation among different materials, it is not possible to calculate the exact limits of confidence in this steel hardness conversion chart.
| Brinell Hardness HB | Rockwell HRC | Rockwell HRB | VickersHV | N/mm2 |
|---|---|---|---|---|
| 800 | 72 | |||
| 780 | 71 | |||
| 760 | 70 | |||
| 752 | 69 | |||
| 745 | 68 | |||
| 746 | 67 | |||
| 735 | 66 | |||
| 711 | 65 | |||
| 695 | 64 | |||
| 681 | 63 | |||
| 658 | 62 | |||
| 642 | 61 | |||
| 627 | 60 | |||
| 613 | 59 | |||
| 601 | 58 | 746 | ||
| 592 | 57 | 727 | ||
| 572 | 56 | 694 | ||
| 552 | 55 | 649 | ||
| 534 | 54 | 120 | 589 | |
| 513 | 53 | 119 | 567 | |
| 504 | 52 | 118 | 549 | |
| 486 | 51 | 118 | 531 | |
| 469 | 50 | 117 | 505 | |
| 468 | 49 | 117 | 497 | |
| 456 | 48 | 116 | 490 | 1569 |
| 445 | 47 | 115 | 474 | 1520 |
| 430 | 46 | 115 | 458 | 1471 |
| 419 | 45 | 114 | 448 | 1447 |
| 415 | 44 | 114 | 438 | 1422 |
| 402 | 43 | 114 | 424 | 1390 |
| 388 | 42 | 113 | 406 | 1363 |
| 375 | 41 | 112 | 393 | 1314 |
| 373 | 40 | 111 | 388 | 1265 |
| 360 | 39 | 111 | 376 | 1236 |
| 348 | 38 | 110 | 361 | 1187 |
| 341 | 37 | 109 | 351 | 1157 |
| 331 | 36 | 109 | 342 | 1118 |
| 322 | 35 | 108 | 332 | 1089 |
| 314 | 34 | 108 | 320 | 1049 |
| 308 | 33 | 107 | 311 | 1035 |
| 300 | 32 | 107 | 303 | 1020 |
| 290 | 31 | 106 | 292 | 990 |
| 277 | 30 | 105 | 285 | 971 |
| 271 | 29 | 104 | 277 | 941 |
| 264 | 28 | 103 | 271 | 892 |
| 262 | 27 | 103 | 262 | 880 |
| 255 | 26 | 102 | 258 | 870 |
| 250 | 25 | 101 | 255 | 853 |
| 245 | 24 | 100 | 252 | 838 |
| 240 | 23 | 100 | 247 | 824 |
| 233 | 22 | 99 | 241 | 794 |
| 229 | 21 | 98 | 235 | 775 |
| 223 | 20 | 97 | 227 | 755 |
| 216 | 19 | 96 | 222 | 716 |
| 212 | 18 | 95 | 218 | 706 |
| 208 | 17 | 95 | 210 | 696 |
| 203 | 16 | 94 | 201 | 680 |
| 199 | 15 | 93 | 199 | 667 |
| 191 | 14 | 92 | 197 | 657 |
| 190 | 13 | 92 | 186 | 648 |
| 186 | 12 | 91 | 184 | 637 |
| 183 | 11 | 90 | 183 | 617 |
| 180 | 10 | 89 | 180 | 608 |
| 175 | 9 | 88 | 178 | 685 |
| 170 | 7 | 87 | 175 | 559 |
| 167 | 6 | 86 | 172 | 555 |
| 166 | 5 | 86 | 168 | 549 |
| 163 | 4 | 85 | 162 | 539 |
| 160 | 3 | 84 | 160 | 535 |
| 156 | 2 | 83 | 158 | 530 |
| 154 | 1 | 82 | 152 | 515 |
| 149 | 81 | 149 | 500 | |
| 147 | 80 | 147 | 490 | |
| 143 | 79 | 146 | 482 | |
| 141 | 78 | 144 | 481 | |
| 139 | 77 | 142 | 480 | |
| 137 | 76 | 140 | 475 | |
| 135 | 75 | 137 | 467 | |
| 131 | 74 | 134 | 461 | |
| 127 | 72 | 129 | 451 | |
| 121 | 70 | 127 | 431 | |
| 116 | 68 | 124 | 422 | |
| 114 | 67 | 121 | 412 | |
| 111 | 66 | 118 | 402 | |
| 107 | 64 | 115 | 382 | |
| 105 | 62 | 112 | 378 | |
| 103 | 61 | 108 | 373 | |
| 95 | 56 | 104 | ||
| 90 | 52 | 95 | ||
| 81 | 41 | 85 | ||
| 76 | 37 | 80 |
The above Hardness conversion chart / table for steel shows an approximate equivalent tensile strength for these scales (Brinell, Rockwell B and C and Vickers).
