中文 (中国)| Rockwell | Rockwell Superficial | Brinell | Vickers | Knoop | Scleroscope | Approx. Tensile Strength of Steel (PSI |
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|---|---|---|---|---|---|---|---|---|---|---|---|
| A Scale 60kg Diam. Brale | B Scale 100kg 1/16” Ball | C Scale 150kg Diam. Brale | D Scale 100kg Diam. Brale | 15N Scale 15kg Diam. Brale | 30N Scale 30kg Diam. Brale | 45N Scale 45kg Diam. Brale | 3000kg 10 mm Ball | 500g or Greater Load | |||
| 92 | - | 80.0 | 87 | 97 | 92 | 87 | - | - | - | ||
| 92 | - | 79.0 | 86 | - | 92 | 87 | - | 1865 | - | - | - |
| 91 | - | 78.0 | 85 | 96 | 91 | 86 | - | 1787 | - | - | - |
| 91 | - | 77.0 | 84 | - | 91 | 85 | - | 1710 | - | - | - |
| 90 | - | 76.0 | 83 | 96 | 90 | 84 | - | 1633 | - | - | - |
| 90 | - | 75.0 | 83 | - | 89 | 83 | - | 1556 | - | - | - |
| 89 | - | 74.0 | 82 | 95 | 89 | 82 | - | 1478 | - | - | - |
| 89 | - | 73.0 | 81 | - | 88 | 81 | - | 1400 | - | - | - |
| 88 | - | 72.0 | 80 | 95 | 87 | 80 | - | 1323 | - | - | - |
| 87 | - | 71.0 | 80 | - | 87 | 79 | - | 1245 | - | - | - |
| 87 | - | 70.0 | 79 | 94 | 86 | 78 | - | 1160 | - | - | - |
| 86 | - | 69.0 | 78 | - | 85 | 77 | - | 1076 | - | 99 | - |
| 85.6 | - | 68.0 | 76.9 | 93.2 | 84.4 | 75.4 | - | 1004 | 920 | 98 | - |
| 85.3 | - | 67.5 | 76.5 | 93.0 | 84.0 | 74.8 | - | 940 | 908 | 97 | - |
| 85.0 | - | 67.0 | 76.1 | 92.9 | 83.6 | 74.2 | - | 920 | 895 | 96 | - |
| 84.7 | - | 66.4 | 75.7 | 92.7 | 83.1 | 73.6 | - | 900 | 882 | 95 | - |
| 84.4 | - | 65.9 | 75.3 | 92.5 | 82.7 | 73.1 | - | 880 | 867 | 93 | - |
| 84.1 | - | 65.3 | 74.8 | 92.3 | 82.2 | 72.2 | - | 860 | 852 | 92 | - |
| 83.8 | - | 64.7 | 74.3 | 92.1 | 81.7 | 71.8 | 745* | 840 | 837 | 91 | - |
| 83.4 | - | 64.0 | 73.8 | 91.8 | 81.1 | 71.0 | - | 820 | 822 | 90 | - |
| 83.0 | - | 63.3 | 73.3 | 91.5 | 80.4 | 70.2 | - | 800 | 806 | 88 | - |
| 82.6 | - | 62.5 | 72.6 | 91.2 | 79.7 | 69.4 | 710* | 780 | 788 | 87 | - |
| 82.2 | - | 61.8 | 72.1 | 91.0 | 79.1 | 68.6 | - | 760 | 772 | 86 | - |
| 81.8 | - | 61.0 | 71.5 | 90.7 | 78.4 | 67.7 | - | 740 | 754 | 84 | - |
| 81.3 | - | 60.1 | 70.8 | 90.3 | 77.6 | 66.7 | 653* | 720 | 735 | 83 | - |
| 81.1 | - | 59.7 | 70.5 | 90.1 | 77.2 | 66.2 | - | 700 | 725 | 81 | - |
| 80.8 | - | 59.2 | 70.1 | 89.8 | 76.8 | 65.7 | - | 690 | 716 | - | 329,000 |
| 80.6 | - | 58.8 | 69.8 | 89.7 | 76.4 | 65.3 | - | 680 | 706 | 80 | 324,000 |
| 80.3 | - | 58.3 | 69.4 | 89.5 | 75.9 | 64.7 | 620* | 670 | 697 | - | - |
| 80.0 | - | 57.8 | 69.0 | 89.2 | 75.5 | 64.1 | 611* | 660 | 687 | 79 | - |
| 79.8 | - | 57.3 | 68.7 | 89.0 | 75.1 | 63.5 | 601* | 650 | 677 | 78 | 309,000 |
| 79.5 | - | 56.8 | 68.3 | 88.8 | 74.6 | 63.0 | 591* | 640 | 667 | 77 | - |
| 79.2 | - | 56.3 | 67.9 | 88.5 | 74.2 | 62.4 | 582* | 630 | 657 | 76 | 297,000 |
| 78.9 | - | 55.7 | 67.5 | 88.2 | 73.6 | 61.7 | 573* | 620 | 646 | 75 | - |
| 78.6 | - | 55.2 | 67.0 | 88.0 | 73.2 | 61.2 | 564* | 610 | 636 | - | - |
| 78.4 | - | 54.7 | 66.7 | 87.8 | 72.7 | 60.5 | 554* | 600 | 625 | 74 | 285,000 |
| 78.0 | - | 54.1 | 66.2 | 87.5 | 72.1 | 59.9 | 545* | 590 | 615 | 73 | - |
| 77.8 | - | 53.6 | 65.8 | 87.2 | 71.7 | 59.3 | 535* | 580 | 604 | 72 | 274,000 |
| 77.4 | - | 53.0 | 65.4 | 86.9 | 71.2 | 58.6 | 525* | 570 | 594 | - | - |
| 77.0 | - | 52.3 | 64.8 | 86.6 | 70.5 | 57.8 | 517* | 560 | 583 | 71 | 263,000 |
| 76.7 | - | 51.7 | 64.4 | 86.3 | 70.0 | 57.0 | 507* | 550 | 572 | 70 | - |
| 76.4 | - | 51.1 | 63.9 | 86.0 | 69.5 | 56.2 | 497* | 540 | 561 | 69 | 253,000 |
| 76.1 | - | 50.5 | 63.5 | 85.7 | 69.0 | 55.6 | 488* | 530 | 550 | 68 | - |
| 75.7 | - | 49.8 | 62.9 | 85.4 | 68.3 | 54.7 | 479* | 520 | 539 | 67 | 243,000 |
| 75.3 | - | 49.1 | 62.2 | 85.0 | 67.7 | 53.9 | 471* | 510 | 528 | - | - |
| 74.9 | - | 48.4 | 61.6 | 84.7 | 67.1 | 53.1 | 460* | 500 | 517 | 66 | 235,000 |
| 74.5 | - | 47.7 | 61.3 | 84.3 | 66.4 | 52.2 | 452* | 490 | 505 | 65 | - |
| 74.1 | - | 46.9 | 60.7 | 83.9 | 65.7 | 51.3 | 441 | 480 | 494 | 64 | 225,000 |
| 73.6 | - | 46.1 | 60.1 | 83.6 | 64.9 | 50.4 | 433 | 470 | 482 | - | - |
| 73.3 | - | 45.3 | 59.4 | 83.2 | 64.3 | 49.4 | 425 | 460 | 471 | 62 | - |
| 72.8 | - | 44.5 | 58.8 | 82.8 | 63.5 | 48.4 | 415 | 450 | 459 | - | 210,000 |
| 72.3 | - | 43.6 | 58.2 | 82.3 | 62.7 | 47.4 | 405 | 440 | 447 | 59 | - |
| 71.8 | - | 42.7 | 57.5 | 81.8 | 61.9 | 46.4 | 397 | 430 | 435 | 58 | - |
| 71.4 | - | 41.8 | 56.8 | 81.4 | 61.1 | 45.3 | 388 | 420 | 423 | 57 | 195,000 |
| 70.8 | - | 40.8 | 56.0 | 80.8 | 60.2 | 44.1 | 379 | 410 | 412 | 56 | - |
| 70.3 | - | 39.8 | 55.2 | 80.3 | 59.3 | 42.9 | 369 | 400 | 400 | 55 | - |
| 69.8 | - | 38.8 | 54.4 | 79.8 | 58.4 | 41.7 | 360 | 390 | 389 | - | - |
| 69.2 | - | 37.7 | 53.6 | 79.2 | 57.4 | 40.4 | 350 | 380 | 378 | 52 | 176,000 |
| 68.7 | - | 36.6 | 52.8 | 78.6 | 56.4 | 39.1 | 341 | 370 | 367 | 51 | - |
| 68.1 | - | 35.5 | 51.9 | 78.0 | 55.4 | 37.8 | 331 | 360 | 356 | 50 | 166,000 |
| 67.6 | - | 34.4 | 51.1 | 77.4 | 54.4 | 36.5 | 322 | 350 | 346 | 48 | - |
| 67.0 | - | 33.3 | 50.2 | 76.8 | 53.6 | 35.2 | 313 | 340 | 337 | 47 | - |
| 66.4 | - | 32.2 | 49.4 | 76.2 | 52.3 | 33.9 | 303 | 330 | 328 | 46 | 150,000 |
| 65.8 | - | 31.0 | 48.4 | 75.6 | 51.3 | 32.5 | 294 | 320 | 318 | 45 | - |
| 65.2 | - | 29.8 | 47.5 | 74.9 | 50.2 | 31.1 | 284 | 310 | 309 | - | 141,000 |
| 64.8 | - | 29.2 | 47.1 | 74.6 | 49.7 | 30.4 | 280 | 300 | 305 | 42 | - |
| 64.5 | - | 28.5 | 46.5 | 74.2 | 49.0 | 29.5 | 275 | 295 | 300 | - | - |
| 64.2 | - | 27.8 | 46.0 | 73.8 | 48.4 | 28.7 | 270 | 290 | 296 | 41 | 133,000 |
| 63.8 | - | 27.1 | 45.3 | 73.4 | 47.8 | 27.9 | 265 | 285 | 291 | - | - |
| 63.5 | - | 26.4 | 44.9 | 73.0 | 47.2 | 27.1 | 261 | 280 | 286 | 40 | 129,000 |
| 63.1 | - | 25.6 | 44.3 | 72.6 | 46.4 | 26.2 | 256 | 275 | 282 | 39 | - |
| 62.7 | - | 24.8 | 43.7 | 72.1 | 45.7 | 25.2 | 252 | 270 | 277 | 38 | - |
| 62.4 | - | 24.0 | 43.1 | 71.6 | 45.0 | 24.3 | 247 | 265 | 272 | - | 122,000 |
| 62.0 | - | 23.1 | 42.2 | 71.1 | 44.2 | 23.2 | 243 | 260 | 267 | 37 | - |
| 61.6 | 99.5 | 22.2 | 41.7 | 70.6 | 43.4 | 22.2 | 238 | 255 | 262 | - | - |
| 61.2 | - | 21.3 | 41.1 | 70.1 | 42.5 | 21.1 | 233 | 250 | 258 | 36 | 115,000 |
| 60.7 | 98.1 | 20.3 | 40.3 | 69.6 | 41.7 | 19.9 | 228 | 245 | 253 | 35 | - |
| - | - | - | - | - | - | - | - | 240 | - | 34 | - |
| - | 96.7 | - | - | - | - | - | 219 | 235 | 243 | - | 105,000 |
| - | - | - | - | - | - | - | 230 | - | 33 | - | |
| - | 95.0 | - | - | - | - | - | 209 | 225 | 234 | - | 100,000 |
| - | - | - | - | - | - | - | - | 220 | - | 32 | - |
| - | 93.4 | - | - | - | - | - | 200 | 215 | 226 | - | 98,000 |
| - | - | - | - | - | - | - | - | 210 | - | 30 | - |
| - | 91.5 | - | - | - | - | - | 190 | 205 | 216 | - | - |
| - | - | - | - | - | - | - | - | 200 | - | 29 | 90,000 |
| - | 89.5 | - | - | - | - | - | 181 | 195 | 206 | - | - |
| - | - | - | - | - | - | - | - | 190 | - | 28 | - |
| - | 87.1 | - | - | - | - | - | 171 | 185 | 196 | - | 83,000 |
| - | - | - | - | - | - | - | - | 180 | - | 26 | - |
| - | 85.0 | - | - | - | - | - | 162 | 175 | 185 | - | 79,000 |
| - | - | - | - | - | - | - | - | 170 | - | 25 | - |
| - | 81.7 | - | - | - | - | - | 152 | 165 | 175 | - | - |
| - | - | - | - | - | - | - | - | 160 | - | 23 | - |
| - | 78.7 | - | - | - | - | - | 143 | 155 | 164 | - | 71,000 |
| - | - | - | - | - | - | - | 150 | - | 22 | - | |
| - | 75.0 | - | - | - | - | - | 133 | 145 | 154 | - | - |
| - | - | - | - | - | - | - | - | 140 | - | 21 | - |
| - | 71.2 | - | - | - | - | - | 124 | 135 | 143 | - | 63,000 |
| - | - | - | - | - | - | - | - | 130 | - | 20 | - |
| - | 66.7 | - | - | - | - | - | 114 | 125 | 133 | - | - |
| - | - | - | - | - | - | - | - | 120 | - | 18 | 56,000 |
| - | 62.3 | - | - | - | - | - | 105 | 115 | 123 | - | - |
| - | - | - | - | - | - | - | - | 110 | - | - | - |
| - | 56.2 | - | - | - | - | - | 95 | 105 | 112 | - | - |
| - | 52.0 | - | - | - | - | - | 90 | 100 | 107 | - | - |
| - | 48.0 | - | - | - | - | - | 86 | 95 | 102 | - | - |
| - | 41.0 | - | - | - | - | - | 81 | 90 | 97 | - | - |
| 85 | |||||||||||
| * Values for tungsten carbide ball only | |||||||||||