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Technique & Application
Approximate Hardness Conversion Numbers for Alloyed White Irons
| Vickers Hardness, HV 50 | Brinell Hardness, HBW | Rockwell C Hardness, HRC |
| 1000 | (903) | 70 |
| 980 | (886) | 69 |
| 960 | (868) | 68 |
| 940 | (850) | 68 |
| 920 | (833) | 67 |
| 900 | (815) | 66 |
| 880 | (798) | 66 |
| 860 | (780) | 65 |
| 840 | (762) | 64 |
| 820 | (745) | 63 |
| 800 | (727) | 62 |
| 780 | (710) | 62 |
| 760 | (692) | 61 |
| 740 | (674) | 60 |
| 720 | (657) | 59 |
| 700 | (639) | 58 |
| 680 | 621 | 57 |
| 660 | 604 | 56 |
| 640 | 586 | 55 |
| 620 | 569 | 54 |
| 600 | 551 | 53 |
| 580 | 533 | 52 |
| 560 | 516 | 51 |
| 540 | 498 | 50 |
| 520 | 481 | 48 |
| 500 | 463 | 47 |
| 480 | 445 | 45 |
| 460 | 428 | 44 |
| 440 | 410 | 42 |
| 420 | 393 | 40 |
| 400 | 375 | 38 |
| 380 | 357 | 35 |