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A variety of
{, class="wikitable"
! Brinell HB
(10 mm Ball, 3000 kg load)!!
(5 kg)!! Rockwell C HRC
(120 degree cone 150 kg)!!Rockwell B HRB
(1/16" ball 100 kg)!! Leeb HLDH.Pollok, „Umwertung der Skalen“ (“Conversion of Scales”), Qualität und Zuverlässigkeit, Ausgabe 4/2008. , - , 800, , -, , 72, , -, , 856 , - , 780, , 1220, , 71, , -, , 850 , - , 760, , 1210, , 70, , -, , 843 , - , 745, , 1114, , 68, , -, , 837 , - , 725, , 1060, , 67, , -, , 829 , - , 712, , 1021, , 66, , -, , 824 , - , 682, , 940, , 65, , -, , 812 , - , 668, , 905, , 64, , -, , 806 , - , 652, , 867, , 63, , -, , 799 , - , 626, , 803, , 62, , -, , 787 , - , 614, , 775, , 61, , -, , 782 , - , 601, , 746, , 60, , -, , 776 , - , 590, , 727, , 59, , -, , 770 , - , 576, , 694, , 57, , -, , 763 , - , 552, , 649, , 56, , -, , 751 , - , 545, , 639, , 55, , -, , 748 , - , 529, , 606, , 54, , -, , 739 , - , 514, , 587, , 53, , 120, , 731 , - , 502, , 565, , 52, , 119, , 724 , - , 495, , 551, , 51, , 119, , 719 , - , 477, , 534, , 49, , 118, , 709 , - , 461, , 502, , 48, , 117, , 699 , - , 451, , 489, , 47, , 117, , 693 , - , 444, , 474, , 46, , 116, , 688 , - , 427, , 460, , 45, , 115, , 677 , - , 415, , 435, , 44, , 115, , 669 , - , 401, , 423, , 43, , 114, , 660 , - , 388, , 401, , 42, , 114, , 650 , - , 375, , 390, , 41, , 113, , 640 , - , 370, , 385, , 40, , 112, , 635 , - , 362, , 380, , 39, , 111, , 630 , - , 351, , 361, , 38, , 111, , 622 , - , 346, , 352, , 37, , 110, , 617 , - , 341, , 344, , 37, , 110, , 613 , - , 331, , 335, , 36, , 109, , 605 , - , 323, , 320, , 35, , 109, , 599 , - , 311, , 312, , 34, , 108, , 588 , - , 301, , 305, , 33, , 107, , 579 , - , 293, , 291, , 32, , 106, , 572 , - , 285, , 285, , 31, , 105, , 565 , - , 276, , 278, , 30, , 105, , 557 , - , 269, , 272, , 29, , 104, , 550 , - , 261, , 261, , 28, , 103, , 542 , - , 258, , 258, , 27, , 102, , 539 , - , 249, , 250, , 25, , 101, , 530 , - , 245, , 246, , 24, , 100, , 526 , - , 240, , 240, , 23, , 99, , 521 , - , 237, , 235, , 23, , 99, , 518 , - , 229, , 226, , 22, , 98, , 510 , - , 224, , 221, , 21, , 97, , 505 , - , 217, , 217, , 20, , 96, , 497 , - , 211, , 213, , 19, , 95, , 491 , - , 206, , 209, , 18, , 94, , 485 , - , 203, , 201, , 17, , 94, , 482 , - , 200, , 199, , 16, , 93, , 478 , - , 196, , 197, , 15, , 92, , 474 , - , 191, , 190, , 14, , 92, , 468 , - , 187, , 186, , 13, , 91, , 463 , - , 185, , 184, , 12, , 91, , 461 , - , 183, , 183, , 11, , 90, , 459 , - , 180, , 177, , 10, , 89, , 455 , - , 175, , 174, , 9, , 88, , 449 , - , 170, , 171, , 7, , 87, , 443 , - , 167, , 168, , 6, , 87, , 439 , - , 165, , 165, , 5, , 86, , 437 , - , 163, , 162, , 4, , 85, , 434 , - , 160, , 159, , 3, , 84, , 430 , - , 156, , 154, , 2, , 83, , 425 , - , 154, , 152, , 1, , 82, , 423 , - , 152, , 150, , -, , 82, , 420 , - , 150, , 149, , -, , 81, , 417 , - , 147, , 147, , -, , 80, , 413 , - , 145, , 146, , -, , 79, , 411 , - , 143, , 144, , -, , 79, , 408 , - , 141, , 142, , -, , 78, , 405 , - , 140, , 141, , -, , 77, , 404 , - , 135, , 135, , -, , 75, , 389 , - , 130, , 130, , -, , 72, , 390 , - , 114, , 120, , -, , 67, , 365 , - , 105, , 110, , -, , 62, , 350 , - , 95, , 100, , -, , 56, , 331 , - , 90, , 95, , -, , 52, , 321 , - , 81, , 85, , -, , 41, , 300 , - , 76, , 80, , -, , 37, , 287 , -
Hardness Conversion Table – Brinell, Rockwell,Vickers – Various steels
(archived November 11, 2011)
(Brinell, Rockwell A,B,C)
Struers hardness conversion table
(Vickers, Brinell, Rockwell B,C,D) Scientific comparisons
hardness
In materials science, hardness (antonym: softness) is a measure of the resistance to localized plastic deformation induced by either mechanical indentation or abrasion. In general, different materials differ in their hardness; for example hard ...
-testing methods are available, including the Vickers
Vickers was a British engineering company that existed from 1828 until 1999. It was formed in Sheffield as a steel foundry by Edward Vickers and his father-in-law, and soon became famous for casting church bells. The company went public i ...
, Brinell, Rockwell, Meyer and Leeb tests. Although it is impossible in many cases to give an exact conversion, it is possible to give an approximate material-specific comparison table for steel
Steel is an alloy made up of iron with added carbon to improve its strength and fracture resistance compared to other forms of iron. Many other elements may be present or added. Stainless steels that are corrosion- and oxidation-resistan ...
s.
Hardness comparison table
{, class="wikitable"
! Brinell HB (10 mm Ball, 3000 kg load)!!
Vickers
Vickers was a British engineering company that existed from 1828 until 1999. It was formed in Sheffield as a steel foundry by Edward Vickers and his father-in-law, and soon became famous for casting church bells. The company went public i ...
HV (5 kg)!! Rockwell C HRC
(120 degree cone 150 kg)!!Rockwell B HRB
(1/16" ball 100 kg)!! Leeb HLDH.Pollok, „Umwertung der Skalen“ (“Conversion of Scales”), Qualität und Zuverlässigkeit, Ausgabe 4/2008. , - , 800, , -, , 72, , -, , 856 , - , 780, , 1220, , 71, , -, , 850 , - , 760, , 1210, , 70, , -, , 843 , - , 745, , 1114, , 68, , -, , 837 , - , 725, , 1060, , 67, , -, , 829 , - , 712, , 1021, , 66, , -, , 824 , - , 682, , 940, , 65, , -, , 812 , - , 668, , 905, , 64, , -, , 806 , - , 652, , 867, , 63, , -, , 799 , - , 626, , 803, , 62, , -, , 787 , - , 614, , 775, , 61, , -, , 782 , - , 601, , 746, , 60, , -, , 776 , - , 590, , 727, , 59, , -, , 770 , - , 576, , 694, , 57, , -, , 763 , - , 552, , 649, , 56, , -, , 751 , - , 545, , 639, , 55, , -, , 748 , - , 529, , 606, , 54, , -, , 739 , - , 514, , 587, , 53, , 120, , 731 , - , 502, , 565, , 52, , 119, , 724 , - , 495, , 551, , 51, , 119, , 719 , - , 477, , 534, , 49, , 118, , 709 , - , 461, , 502, , 48, , 117, , 699 , - , 451, , 489, , 47, , 117, , 693 , - , 444, , 474, , 46, , 116, , 688 , - , 427, , 460, , 45, , 115, , 677 , - , 415, , 435, , 44, , 115, , 669 , - , 401, , 423, , 43, , 114, , 660 , - , 388, , 401, , 42, , 114, , 650 , - , 375, , 390, , 41, , 113, , 640 , - , 370, , 385, , 40, , 112, , 635 , - , 362, , 380, , 39, , 111, , 630 , - , 351, , 361, , 38, , 111, , 622 , - , 346, , 352, , 37, , 110, , 617 , - , 341, , 344, , 37, , 110, , 613 , - , 331, , 335, , 36, , 109, , 605 , - , 323, , 320, , 35, , 109, , 599 , - , 311, , 312, , 34, , 108, , 588 , - , 301, , 305, , 33, , 107, , 579 , - , 293, , 291, , 32, , 106, , 572 , - , 285, , 285, , 31, , 105, , 565 , - , 276, , 278, , 30, , 105, , 557 , - , 269, , 272, , 29, , 104, , 550 , - , 261, , 261, , 28, , 103, , 542 , - , 258, , 258, , 27, , 102, , 539 , - , 249, , 250, , 25, , 101, , 530 , - , 245, , 246, , 24, , 100, , 526 , - , 240, , 240, , 23, , 99, , 521 , - , 237, , 235, , 23, , 99, , 518 , - , 229, , 226, , 22, , 98, , 510 , - , 224, , 221, , 21, , 97, , 505 , - , 217, , 217, , 20, , 96, , 497 , - , 211, , 213, , 19, , 95, , 491 , - , 206, , 209, , 18, , 94, , 485 , - , 203, , 201, , 17, , 94, , 482 , - , 200, , 199, , 16, , 93, , 478 , - , 196, , 197, , 15, , 92, , 474 , - , 191, , 190, , 14, , 92, , 468 , - , 187, , 186, , 13, , 91, , 463 , - , 185, , 184, , 12, , 91, , 461 , - , 183, , 183, , 11, , 90, , 459 , - , 180, , 177, , 10, , 89, , 455 , - , 175, , 174, , 9, , 88, , 449 , - , 170, , 171, , 7, , 87, , 443 , - , 167, , 168, , 6, , 87, , 439 , - , 165, , 165, , 5, , 86, , 437 , - , 163, , 162, , 4, , 85, , 434 , - , 160, , 159, , 3, , 84, , 430 , - , 156, , 154, , 2, , 83, , 425 , - , 154, , 152, , 1, , 82, , 423 , - , 152, , 150, , -, , 82, , 420 , - , 150, , 149, , -, , 81, , 417 , - , 147, , 147, , -, , 80, , 413 , - , 145, , 146, , -, , 79, , 411 , - , 143, , 144, , -, , 79, , 408 , - , 141, , 142, , -, , 78, , 405 , - , 140, , 141, , -, , 77, , 404 , - , 135, , 135, , -, , 75, , 389 , - , 130, , 130, , -, , 72, , 390 , - , 114, , 120, , -, , 67, , 365 , - , 105, , 110, , -, , 62, , 350 , - , 95, , 100, , -, , 56, , 331 , - , 90, , 95, , -, , 52, , 321 , - , 81, , 85, , -, , 41, , 300 , - , 76, , 80, , -, , 37, , 287 , -
References
Further reading
* ISO 18265: "Metallic materials — Conversion of hardness values" (2013) * ASTM E140-12B(2019)e1: "Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness" (2019)External links
Hardness Conversion Table – Brinell, Rockwell,Vickers – Various steels
(archived November 11, 2011)
(Brinell, Rockwell A,B,C)
Struers hardness conversion table
(Vickers, Brinell, Rockwell B,C,D) Scientific comparisons