Hardness Conversion

           
 
Vickers 50Kg Brinell, 3000kgf HB Rockwell Shore Hardness HS
Carbide Ball 10mm A scale
60kgf Diamond
B scale
100kgf 1/16n Ball
C scale 150kgf
diamond indenter
D scale 100kgf
diamond indenter
1900 93.1 80.5
1800 92.6 79.2
1700 91.9 77.9
1600 91.3 76.6
1500 90.5 75.3
1450 90.1 74.6
1400 89.6 74
1350 89.1 73.4
1300 88.7 72.7
1250 88.3 72.1
1200 87.9 71.5
1150 87.5 70.9
1100 87.1 70.3
1050 86.6 69.6
1000 86.2 68.9
940 85.6 68 76.9 97
920 85.3 87.5 76.5 96
900 85 67 76.1 95
880 767 84.7 66.4 75.7 93
860 757 84.4 65.9 75.3 92
840 745 84.1 65.3 74.8 91
820 733 83.8 64.7 74.3 90
800 722 83.4 64 74.8 88
780 710 83 63.3 73.3 87
760 698 82.6 62.5 72.6 86
740 684 82.2 61.8 72.1 84
720 670 81.8 61 71.5 83
700 656 81.3 60.1 70.8 81
690 647 81.1 59.7 70.5
680 638 80.8 59.2 70.1 80
670 630 80.6 58.8 69.8
660 620 80.3 58.3 69.4 79
650 611 80 57.8 69 78
640 601 79.8 57.3 68.7 77
630 591 79.5 56.8 68.3 76
620 582 79.2 56.3 67.9 75
610 573 78.9 55.7 67.5
600 564 78.6 55.2 67 74
590 554 78.4 54.7 66.7 73
580 515 78 54.1 66.2 72
570 535 77.8 53.6 65.8
560 525 77.4 53 65.4 71
550 517 77 52.3 64.8 70
540 507 76.7 51.7 64.4 69
530 497 76.4 51.1 66.2 69
520 488 76.1 50.5 63.5 67
510 479 75.7 49.8 62.9
500 471 75.3 49.1 62.2 66
490 460 74.9 48.4 61.6 65
480 452 74.5 47.7 61.3 64
470 442 74.1 46.9 60.7
460 433 73.6 46.1 60.1 62
450 425 73.3 45.3 59.4
440 415 72.8 44.5 58.8 59
430 405 72.3 43.6 58.2
420 397 71.8 42.7 57.5 57
410 388 71.4 41.8 56.8
400 379 70.8 40.8 56 55
390 369 70.3 39.8 55.2
380 360 69.8 110 38.8 54.4 52
370 350 69.2 37.7 53.6
360 341 68.7 109 36.6 52.8 50
350 331 68.1 35.5 51.9
340 322 67.6 108 34.4 51.1 47
330 313 67 33.3 50.2
320 303 66.4 107 32.2 49.4 45
310 294 65.8 31 48.4
300 284 65.2 105.5 29.8 47.5 42
295 280 64.8 29.2 47.1
290 275 64.5 104.5 28.5 46.5 41
285 270 64.2 27.8 46
280 265 63.8 103.5 27.1 45.3 40
275 261 63.5 26.4 44.9
270 256 63.1 102 25.6 44.3 38
265 252 62.7 24.8 43.7
260 247 62.4 101 24 43.1 37
255 243 62 23.1 42.2
250 238 61.6 99.5 22.2 41.7 36
245 233 61.2 21.3 41.1
240 228 60.7 98.1 20.3 40.3 34
230 219 96.7 18 33
220 209 95 15.7 32
210 200 93.4 13.4 30
200 190 91.5 11 29
190 181 89.5 8.5 28
180 171 87.1 6 26
170 162 85 3 25
160 152 81.7 0 24
150 143 78.7 22
140 133 75 21
130 124 71.2 20
127 69.8 19
122 67.6 18
117 65.7 15