| TMC INC | ||||
| TABLE DE CONVERSION DE DURETÉ | ||||
| Dureté | Dureté | Résistance à la traction (Rm) | Dureté Rockwell | |
| Vickers | Brinell | |||
| HV | HB | N/mm2 | HRB | HRC |
| 90 | 90 | 310 | ||
| 100 | 100 | 350 | 57 | |
| 110 | 110 | 390 | 63 | |
| 120 | 120 | 420 | 68 | |
| 130 | 130 | 450 | 73 | |
| 140 | 140 | 480 | 77 | |
| 150 | 150 | 510 | 81 | |
| 160 | 160 | 540 | 84 | |
| 170 | 170 | 570 | 87 | |
| 180 | 180 | 600 | 90 | |
| 190 | 190 | 630 | 92 | |
| 200 | 200 | 660 | 94 | 14 |
| 210 | 210 | 690 | 95.5 | 16 |
| 220 | 220 | 730 | 97 | 18 |
| 230 | 230 | 760 | 98.5 | 20 |
| 240 | 240 | 780 | 100 | 22 |
| 250 | 250 | 810 | 102 | 23.5 |
| 260 | 260 | 840 | 103.5 | 26.5 |
| 270 | 270 | 870 | 104.5 | 28 |
| 280 | 280 | 900 | 104.5 | 28 |
| 290 | 290 | 930 | 105.5 | 29.5 |
| 300 | 300 | 970 | 106.5 | 31 |
| 310 | 310 | 1000 | 32 | |
| 320 | 320 | 1040 | 33 | |
| 330 | 330 | 1070 | 34 | |
| 340 | 339 | 1100 | 35 | |
| 350 | 349 | 1130 | 36 | |
| 360 | 358 | 1170 | 37 | |
| 370 | 367 | 1200 | 38 | |
| 380 | 376 | 1240 | 39 | |
| 390 | 385 | 1270 | 40 | |
| 400 | 394 | 1290 | 41 | |
| 410 | 403 | 1330 | 4.8 | |
| 420 | 412 | 1360 | 42.6 | |
| 430 | 421 | 1400 | 43.4 | |
| 440 | 429 | 1430 | 44.2 | |
| 450 | 438 | 1460 | 45 | |
| 460 | 446 | 1490 | 45.7 | |
| 470 | 454 | 1520 | 46.4 | |
| 480 | 462 | 1560 | 47.1 | |