Hardness comparison

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title: "Hardness comparison" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["hardness-tests", "scientific-comparisons"] description: "Standard hardness conversion table" topic_path: "general/hardness-tests" source: "https://en.wikipedia.org/wiki/Hardness_comparison" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Standard hardness conversion table ::

A variety of hardness-testing methods are available, including the Vickers, 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 steels.

Hardness comparison table

::figure[src="https://upload.wikimedia.org/wikipedia/commons/f/fc/Hardness_comparisons_(Brinell_hardness).png"] ::

::data[format=table] | Brinell HB (10 mm Ball, 3000 kgf load) | Vickers HV (5 kgf) | Rockwell C HRC (120 degree cone 150 kgf) | Rockwell B HRB (1/16" ball 100 kgf) | Leeb HLD | |---|---|---|---|---| | 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

References

1. H.Pollok, „Umwertung der Skalen“ (“Conversion of Scales”), Qualität und Zuverlässigkeit, Ausgabe 4/2008.

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