| Hardness Conversion Table(BHN, HV, HRB and HRC Hardness Conversion Chart) | ||||
|---|---|---|---|---|
| Tensile Strength (N/mm2) |
Brinell Hardness (BHN) |
Vickers Hardness (HV) |
Rockwell Hardness (HRB) |
Rockwell Hardness (HRC) |
| 285 | 86 | 90 | ||
| 320 | 95 | 100 | 56.2 | |
| 350 | 105 | 110 | 62.3 | |
| 385 | 114 | 120 | 66.7 | |
| 415 | 124 | 130 | 71.2 | |
| 450 | 133 | 140 | 75.0 | |
| 480 | 143 | 150 | 78.7 | |
| 510 | 152 | 160 | 81.7 | |
| 545 | 162 | 170 | 85.0 | |
| 575 | 171 | 180 | 87.1 | |
| 610 | 181 | 190 | 89.5 | |
| 640 | 190 | 200 | 91.5 | |
| 675 | 199 | 210 | 93.5 | |
| 705 | 209 | 220 | 95.0 | |
| 740 | 219 | 230 | 96.7 | |
| 770 | 228 | 240 | 98.1 | |
| 800 | 238 | 250 | 99.5 | |
| 820 | 242 | 255 | 23.1 | |
| 850 | 252 | 265 | 24.8 | |
| 880 | 261 | 275 | 26.4 | |
| 900 | 266 | 280 | 27.1 | |
| 930 | 276 | 290 | 28.5 | |
| 950 | 280 | 295 | 29.2 | |
| 995 | 295 | 310 | 31.0 | |
| 1030 | 304 | 320 | 32.2 | |
| 1060 | 314 | 330 | 33.3 | |
| 1095 | 323 | 340 | 34.4 | |
| 1125 | 333 | 350 | 35.5 | |
| 1155 | 342 | 360 | 36.6 | |
| 1190 | 352 | 370 | 37.7 | |
| 1220 | 361 | 380 | 38.8 | |
| 1255 | 371 | 390 | 39.8 | |
| 1290 | 380 | 400 | 40.8 | |
| 1320 | 390 | 410 | 41.8 | |
| 1350 | 399 | 420 | 42.7 | |
| 1385 | 409 | 430 | 43.6 | |
| 1420 | 418 | 440 | 44.5 | |
| 1455 | 428 | 450 | 45.3 | |
| 1485 | 437 | 460 | 46.1 | |
| 1520 | 447 | 470 | 46.9 | |
| 1555 | 456 | 480 | 47.7 | |
| 1595 | 466 | 490 | 48.4 | |
| 1630 | 475 | 500 | 49.1 | |
| 1665 | 485 | 510 | 49.8 | |
| 1700 | 494 | 520 | 50.5 | |
| 1740 | 504 | 530 | 51.1 | |
| 1775 | 513 | 540 | 51.7 | |
| 1810 | 523 | 550 | 52.3 | |
| 1845 | 532 | 560 | 53.0 | |
| 1880 | 542 | 570 | 53.6 | |
| 1920 | 551 | 580 | 54.1 | |
| 1955 | 561 | 590 | 54.7 | |
| 1995 | 570 | 600 | 55.2 | |
| 2030 | 580 | 610 | 55.7 | |
| 2070 | 589 | 620 | 56.3 | |
| 2105 | 599 | 630 | 56.8 | |
| 2145 | 608 | 640 | 57.3 | |
| 2180 | 618 | 650 | 57.8 | |
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