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Hardness

Hardness Comparison Table on Various Scales








There are several hardness scale conversion systems, including BS 860 and ASTM E140.

The table shows a set of values that has been used for stainless steel and also includes a tensile strength (Ultimate Tensile Strength) comparison. The Rockwell B values are superimposed on this table using an approximation from ASTM E140 Table5, which compares Rockwell B and Brinell.

For the indentation methods the different measurements in HV, HRC and HB can also be compared without too much of insecurity. However, for the rebounding methods like Shore and Equotip the errors when making conversions are larger as the individual measurements are highly influenced by the material properties such as internal stresses. Forged rolls have higher internal superficial compression than cast rolls. This creates a higher rebound so the conversion can not be done based on the same tables.



Vickers Brinell Rockwell Shore
HV HB HRC C
200 200 - 28
210 210 - 29
220 220 - 30
230 230 19.2 31
240 240 21.2 33
250 250 23.0 34
260 260 24.7 35
270 270 26.1 36
280 280 27.6 37
290 290 29.0 39
300 300 30.3 40
310 310 31.5 41
320 320 32.9 42
330 330 33.8 43
340 340 34.9 44
350 350 36.0 45
360 359 37.0 46
370 368 38.0 47
380 373 38.9 48
390 385 39.8 49
400 393 40.7 50
410 400 41.5 51
420 407 42.3 52
430 416 43.2 53
440 423 44.0 54
450 429 44.8 55
460 435 45.5 56
470 441 46.3 57
480 450 47.0 58
490 457 47.7 59
500 465 48.3 60
510 474 49.0 61
520 482 49.6 62
530 489 50.3 63
540 496 50.9 64
550 503 51.5 65
560 511 52.1 66
570 520 52.7 67
580 527 53.3 68
590 533 53.8 69
600 538 54.4 70
610 543 54.9 71
620 549 55.4 72
630 555 55.9 73
640 561 56.4 74
650 568 56.9 75
660 574 57.4 75
670 581 57.9 76
680 588 58.4 77
690 595 58.9 78
700 602 59.3 79
710 609 59.8 80
720 616 60.2 81
730 622 60.7 82
740 627 61.1 83
750 633 61.5 83
760 639 61.9 84
770 644 62.3 85
780 650 62.7 86
790 656 63.1 86
800 661 63.5 87
810 666 63.9 87
820 670 64.3 88
830 677 64.6 89
840 682 65.0 89
850 - 65.3 90
860 - 65.7 90
870 - 66.0 91
880 - 66.3 91
890 - 66.6 92
900 - 66.9 92

Hardness Conversion Calculator

Hardness Conversion Chart - Brinell|HB|Vickers|HV|Rockwell|HRB|HRC|UTS

Hardness Comparison Table on Various Scales

Relation of Hardness to Other Mechanical Properties Tensile Strength Yield-Strength

Difference of Toughness and Hardness

Toughness

Hardness Values Conversion Calculator

Hardness Testing

Hardness Test Methods

Brinell Hardness

Rockwell Hardness

Vickers Hardness

Superficial Rockwell Hardness

Shore Durometer Test

Brinell Rockwell Hardness Conversion

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Rockwell Superficial Brinell Vickers Shore Hardness Conversion Chart

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