| STEEL | |||||||||
| ROCKWELL | ROCKWELL SUPERFICIAL | VICKERS | BRINELL | SHORE | |||||
| HRA 60kgf |
HRB 100kgf |
HRC 150kg |
HRD 100gf | 15N 15kgf | 30N 30kgf | 45N 45kgf | HV 50kgf |
HB 3000kgf | HS JIS |
| 85.6 | - | 68.0 | 76.9 | 93.2 | 84.4 | 75.4 | 940 | - | 97.6 |
| 85.3 | - | 67.5 | 76.5 | 93.0 | 84.0 | 74.3 | 920 | - | 96.4 |
| 85.0 | - | 67.0 | 76.1 | 92.9 | 83.6 | 74.2 | 900 | - | 95.2 |
| 84.7 | - | 66.4 | 75.7 | 92.7 | 83.1 | 73.6 | 880 | - | 94.0 |
| 84.4 | - | 65.9 | 75.3 | 92.5 | 82.7 | 73.1 | 860 | - | 92.8 |
| 84.1 | - | 65.3 | 74.8 | 92.3 | 82.2 | 72.2 | 840 | - | 91.5 |
| 83.8 | - | 64.7 | 74.3 | 92.1 | 81.7 | 71.8 | 820 | - | 90.2 |
| 83.4 | - | 64.0 | 73.8 | 91.8 | 81.1 | 71.0 | 800 | - | 88.9 |
| 83.0 | - | 63.3 | 73.3 | 91.5 | 80.4 | 70.2 | 780 | - | 87.5 |
| 82.6 | - | 62.5 | 72.6 | 91.2 | 79.7 | 69.4 | 760 | - | 86.2 |
| 82.2 | - | 61.8 | 72.1 | 91.0 | 79.1 | 68.6 | 740 | - | 84.8 |
| 81.8 | - | 61.0 | 71.5 | 90.7 | 78.4 | 67.7 | 720 | - | 83.3 |
| 81.3 | - | 60.1 | 70.8 | 90.3 | 77.6 | 66.7 | 700 | - | 81.8 |
| 81.1 | - | 59.7 | 70.5 | 90.1 | 77.2 | 66.2 | 690 | - | 81.1 |
| 80.8 | - | 59.2 | 70.1 | 89.8 | 76.8 | 65.7 | 680 | - | 80.3 |
| 80.6 | - | 58.8 | 69.8 | 89.7 | 76.4 | 65.3 | 670 | - | 79.6 |
| 80.3 | - | 58.3 | 69.4 | 89.5 | 75.9 | 64.7 | 660 | - | 78.8 |
| 80.0 | - | 57.8 | 69.0 | 89.2 | 75.5 | 64.1 | 650 | - | 78.0 |
| 79.8 | - | 57.3 | 68.7 | 89.0 | 75.1 | 63.5 | 640 | - | 77.2 |
| 79.5 | - | 56.8 | 68.3 | 88.8 | 74.6 | 63.0 | 630 | - | 76.4 |
| 79.2 | - | 56.3 | 67.9 | 88.5 | 74.2 | 62.4 | 620 | - | 75.6 |
| 78.9 | - | 55.7 | 67.5 | 88.2 | 73.6 | 61.7 | 610 | - | 74.7 |
| 78.6 | - | 55.2 | 67.0 | 88.0 | 73.2 | 61.2 | 600 | - | 73.9 |
| 78.4 | - | 54.7 | 66.7 | 87.8 | 72.7 | 60.5 | 590 | - | 73.1 |
| 78.0 | - | 54.1 | 66.2 | 87.5 | 72.1 | 59.9 | 580 | - | 72.2 |
| 77.8 | - | 53.6 | 65.8 | 87.2 | 71.7 | 59.3 | 570 | - | 71.3 |
| 77.4 | - | 53.0 | 65.4 | 86.9 | 71.2 | 58.6 | 560 | - | 70.4 |
| 77.0 | - | 52.3 | 64.8 | 86.6 | 70.5 | 57.8 | 550 | 505 | 69.6 |
| 76.7 | - | 51.7 | 64.4 | 86.3 | 70.0 | 57.0 | 540 | 496 | 68.7 |
| 76.4 | - | 51.1 | 63.9 | 86.0 | 69.5 | 56.2 | 530 | 488 | 67.7 |
| 76.1 | - | 50.5 | 63.5 | 85.7 | 69.0 | 55.6 | 520 | 480 | 66.8 |
| 75.7 | - | 49.8 | 62.9 | 85.4 | 68.3 | 54.7 | 510 | 473 | 65.9 |
| 75.3 | - | 49.1 | 62.2 | 85.0 | 67.7 | 53.9 | 500 | 465 | 64.9 |
| 74.9 | - | 48.4 | 61.6 | 84.7 | 67.1 | 53.1 | 490 | 456 | 64.0 |
| 74.5 | - | 47.7 | 61.3 | 84.3 | 66.4 | 52.2 | 480 | 448 | 63.0 |
| 74.1 | - | 46.9 | 60.7 | 83.9 | 65.7 | 51.3 | 470 | 441 | 62.0 |
| 73.6 | - | 46.1 | 60.1 | 83.6 | 64.9 | 50.4 | 460 | 433 | 61.0 |
| 73.3 | - | 45.3 | 59.4 | 83.2 | 64.3 | 49.4 | 450 | 425 | 60.0 |
| 72.8 | - | 44.5 | 58.8 | 82.8 | 63.5 | 48.4 | 440 | 415 | 59.0 |
| 72.3 | - | 43.6 | 58.2 | 82.3 | 62.7 | 47.4 | 430 | 405 | 58.0 |
| 71.8 | - | 42.7 | 57.5 | 81.8 | 61.9 | 46.4 | 420 | 397 | 56.9 |
| 71.4 | - | 41.8 | 56.8 | 81.4 | 61.1 | 45.3 | 410 | 388 | 55.9 |
| 70.8 | - | 40.8 | 56.0 | 81.0 | 60.2 | 44.1 | 400 | 379 | 54.8 |
| 70.3 | - | 39.8 | 55.2 | 80.3 | 59.3 | 42.9 | 390 | 369 | 53.7 |
| 69.8 | 110.0 | 38.8 | 54.4 | 79.8 | 58.4 | 41.7 | 380 | 360 | 52.6 |
| 69.2 | - | 37.7 | 53.6 | 79.2 | 57.4 | 40.4 | 370 | 350 | 51.5 |
| 68.7 | 109.0 | 36.6 | 52.8 | 78.6 | 56.4 | 39.1 | 360 | 341 | 50.4 |
| 68.1 | - | 35.5 | 51.9 | 78.0 | 55.4 | 37.8 | 350 | 331 | 49.3 |
| 67.6 | 108.0 | 34.4 | 51.1 | 77.4 | 54.4 | 36.5 | 340 | 322 | 48.1 |
| 67.0 | - | 33.3 | 50.2 | 76.8 | 53.6 | 35.2 | 330 | 313 | 47.0 |
| 66.4 | 107.0 | 32.2 | 49.4 | 76.2 | 52.3 | 33.9 | 320 | 303 | 45.8 |
| 65.8 | - | 31.0 | 48.4 | 75.6 | 51.3 | 32.5 | 310 | 294 | 44.6 |
| 65.2 | 105.5 | 29.8 | 47.5 | 74.9 | 50.2 | 31.1 | 300 | 284 | 43.4 |
| 64.8 | - | 29.2 | 47.1 | 74.6 | 49.7 | 30.4 | 295 | 280 | 42.8 |
| 64.5 | 104.5 | 28.5 | 46.5 | 74.2 | 49.0 | 29.5 | 290 | 275 | 42.2 |
| 64.2 | - | 27.8 | 46.0 | 73.8 | 48.4 | 28.7 | 285 | 270 | 41.6 |
| 63.8 | 103.5 | 27.1 | 45.3 | 73.4 | 47.8 | 27.9 | 280 | 265 | 40.9 |
| 63.5 | - | 26.4 | 44.9 | 73.0 | 47.2 | 27.1 | 275 | 261 | 40.3 |
| 63.1 | 102.0 | 25.6 | 44.3 | 72.6 | 46.4 | 26.2 | 270 | 256 | 39.7 |
| 62.7 | - | 24.8 | 43.7 | 72.1 | 45.7 | 25.2 | 265 | 252 | 39.1 |
| 62.4 | 101.0 | 24.0 | 43.1 | 71.6 | 45.0 | 24.3 | 260 | 247 | 38.4 |
| 62.0 | - | 23.1 | 42.2 | 71.1 | 44.2 | 23.2 | 255 | 243 | 37.8 |
| 61.6 | 99.5 | 22.2 | 41.7 | 70.6 | 43.4 | 22.2 | 250 | 238 | 37.2 |
| 61.2 | - | 21.3 | 41.1 | 70.1 | 42.5 | 21.1 | 245 | 233 | 36.5 |
| 60.7 | 98.1 | 20.3 | 40.3 | 69.6 | 41.7 | 19.9 | 240 | 228 | 35.9 |
| - | 96.7 | 18.0 | - | - | - | - | 230 | 219 | 34.1 |
| - | 95.0 | 15.7 | - | - | - | - | 220 | 209 | 33.2 |
| - | 93.4 | 13.4 | - | - | - | - | 210 | 200 | 31.8 |
| - | 91.5 | 11.0 | - | - | - | - | 200 | 190 | 30.4 |
| - | 89.5 | 8.50 | - | - | - | - | 190 | 181 | 29.0 |
| - | 87.1 | 6.00 | - | - | - | - | 180 | 171 | 27.7 |
| - | 85.0 | 3.00 | - | - | - | - | 170 | 162 | 26.5 |
| - | 81.7 | 0.00 | - | - | - | - | 160 | 152 | 25.0 |
| - | 78.7 | - | - | - | - | - | 150 | 143 | 23.7 |
| - | 75.0 | - | - | - | - | - | 140 | 133 | 22.1 |
| - | 71.2 | - | - | - | - | - | 130 | 124 | 20.6 |
| - | 66.7 | - | - | - | - | - | 120 | 114 | 19.1 |
| - | 62.3 | - | - | - | - | - | 110 | 105 | 17.6 |
| - | 56.2 | - | - | - | - | - | 100 | 95 | 16.1 |