Home » Hardness Conversion Table
| HRC |
HB |
HV |
HRA |
Rm (Tensile Strength) |
| Diamond penetrator |
Brinell 3000 Kgf |
Vickers 30 |
Diamond penetrator |
N/mm MPa |
| 68 |
– |
940 |
85.6 |
– |
| 67 |
– |
900 |
85.0 |
– |
| 66 |
– |
865 |
84.5 |
– |
| 65 |
739 |
832 |
83.9 |
– |
| 64 |
722 |
800 |
83.4 |
– |
| 63 |
706 |
772 |
82.8 |
– |
| 62 |
688 |
746 |
82.3 |
– |
| 61 |
670 |
720 |
81.8 |
– |
| 60 |
654 |
697 |
81.2 |
– |
| 59 |
634 |
674 |
80.7 |
2420 |
| 58 |
615 |
653 |
80.1 |
2330 |
| 57 |
595 |
633 |
79.6 |
2240 |
| 56 |
577 |
613 |
79.0 |
2160 |
| 55 |
560 |
595 |
78.5 |
2070 |
| 54 |
543 |
577 |
78.0 |
2010 |
| 53 |
525 |
560 |
77.4 |
1950 |
| 52 |
512 |
544 |
76.8 |
1880 |
| 51 |
496 |
528 |
76.3 |
1820 |
| 50 |
482 |
513 |
75.9 |
1760 |
| 49 |
468 |
498 |
75.2 |
1700 |
| 48 |
455 |
484 |
74.7 |
1640 |
| 47 |
442 |
471 |
74.1 |
1580 |
| 46 |
432 |
458 |
73.6 |
1520 |
| 45 |
421 |
446 |
73.1 |
1480 |
| 44 |
409 |
434 |
72.5 |
1430 |
| 43 |
400 |
423 |
72.0 |
1390 |
| 42 |
390 |
412 |
71.5 |
1340 |
| 41 |
381 |
402 |
70.9 |
1300 |
| 40 |
371 |
392 |
70.4 |
1250 |
| 39 |
362 |
382 |
69.9 |
1220 |
| 38 |
353 |
372 |
69.4 |
1180 |
| 37 |
344 |
363 |
68.9 |
1140 |
| 36 |
336 |
354 |
68.4 |
1110 |
| 35 |
327 |
345 |
67.9 |
1080 |
| 34 |
319 |
336 |
67.4 |
1050 |
| 33 |
311 |
327 |
66.8 |
1030 |
| 32 |
301 |
318 |
66.3 |
1010 |
| 31 |
294 |
310 |
65.8 |
970 |
| 30 |
286 |
302 |
65.3 |
950 |
| 29 |
279 |
294 |
64.6 |
930 |
| 28 |
271 |
286 |
64.3 |
900 |
| 27 |
264 |
279 |
63.8 |
880 |
| 26 |
258 |
272 |
63.3 |
860 |
| 25 |
253 |
266 |
62.8 |
850 |
| 24 |
247 |
260 |
62.4 |
820 |
| 23 |
243 |
254 |
62.0 |
810 |
| 22 |
237 |
248 |
61.5 |
790 |
| 21 |
231 |
243 |
61.0 |
770 |
| 20 |
226 |
238 |
60.5 |
760 |
