ビッカース 50kgf （HV） |
ブリネル 3,000kgf （HB） |
ロックウェル | ショア （HS） |
引張 強さ （GPa） |
|||
|---|---|---|---|---|---|---|---|
| A スケール 60kgf brale 圧子 （HRA） |
B スケール 100kgf 1/10in 球 （HRB） |
C スケール 150kgf brale 圧子 （HRC） |
D スケール 100kgf brale 圧子 （HRD） |
||||
| 940 | - | 85.6 | - | 68.0 | 76.9 | 97 | - |
| 920 | - | 85.3 | - | 67.5 | 76.5 | 96 | - |
| 900 | - | 85.0 | - | 67.0 | 76.1 | 95 | - |
| 880 | 767 | 84.7 | - | 66.4 | 75.7 | 93 | - |
| 860 | 757 | 84.4 | - | 65.9 | 75.3 | 92 | - |
| 840 | 745 | 84.1 | - | 65.3 | 74.8 | 91 | - |
| 820 | 733 | 83.8 | - | 64.7 | 74.3 | 90 | - |
| 800 | 722 | 83.4 | - | 64.0 | 73.8 | 88 | - |
| 780 | 710 | 83.0 | - | 63.3 | 73.3 | 87 | - |
| 760 | 698 | 82.6 | - | 62.5 | 72.6 | 86 | - |
| 740 | 684 | 82.2 | - | 61.8 | 72.1 | - | - |
| 737 | 682 | 82.2 | - | 61.7 | 72.0 | 84 | - |
| 720 | 670 | 81.8 | - | 61.0 | 71.5 | 83 | - |
| 700 | 656 | 81.3 | - | 60.1 | 70.8 | - | - |
| 697 | 653 | 81.2 | - | 60.0 | 70.7 | 81 | - |
| 690 | 647 | 81.1 | - | 59.7 | 70.5 | - | - |
| 680 | 638 | 80.8 | - | 59.2 | 70.1 | 80 | - |
| 670 | 630 | 80.6 | - | 58.8 | 69.8 | - | - |
| 667 | 627 | 80.5 | - | 58.7 | 69.7 | 79 | - |
| 640 | 601 | 79.8 | - | 57.3 | 68.7 | 77 | - |
| 615 | 578 | 79.1 | - | 56.0 | 67.7 | 75 | - |
| 591 | 555 | 78.4 | - | 54.7 | 66.7 | 73 | 2.06 |
| 569 | 534 | 77.8 | - | 53.5 | 65.8 | 71 | 1.98 |
| 547 | 514 | 76.9 | - | 52.1 | 64.7 | 70 | 1.89 |
| 528 | 495 | 76.3 | - | 51.0 | 63.8 | 68 | 1.82 |
| 508 | 477 | 75.6 | - | 49.6 | 62.7 | 66 | 1.73 |
| 491 | 461 | 74.9 | - | 48.5 | 61.7 | 65 | 1.67 |
| 472 | 444 | 74.2 | - | 47.1 | 60.8 | 63 | 1.59 |
| 455 | 429 | 73.4 | - | 45.7 | 59.7 | 61 | 1.51 |
| 440 | 415 | 72.8 | - | 44.5 | 58.8 | 59 | 1.51 |
| 425 | 401 | 72.0 | - | 43.1 | 57.8 | 58 | 1.39 |
| 410 | 388 | 71.4 | - | 41.8 | 56.8 | 56 | 1.33 |
| 396 | 375 | 70.6 | - | 40.4 | 55.7 | 54 | 1.26 |
| 383 | 363 | 70.0 | - | 39.1 | 54.6 | 52 | 1.22 |
| 372 | 352 | 69.3 | (110.0) | 37.9 | 53.8 | 51 | 1.18 |
| 360 | 341 | 68.7 | (109.0) | 36.6 | 52.8 | 50 | 1.13 |
| 350 | 331 | 68.1 | (108.5) | 35.5 | 51.9 | 48 | 1.10 |
| 339 | 321 | 67.5 | (108.0) | 34.3 | 51.0 | 47 | 1.06 |
| 328 | 311 | 66.9 | (107.5) | 33.1 | 50.0 | 46 | 1.03 |
| 319 | 302 | 66.3 | (107.0) | 32.1 | 49.3 | 45 | 1.01 |
| 309 | 293 | 65.7 | (106.0) | 30.9 | 48.3 | 43 | 0.97 |
| 301 | 285 | 65.3 | (105.5) | 29.9 | 47.6 | - | 0.95 |
| 292 | 277 | 64.6 | (104.5) | 28.8 | 46.7 | 41 | 0.92 |
| 284 | 269 | 64.1 | (104.0) | 27.6 | 45.9 | 40 | 0.89 |
| 276 | 262 | 63.6 | (103.0) | 26.6 | 45.0 | 39 | 0.87 |
| 269 | 255 | 63.0 | (102.0) | 25.4 | 44.2 | 38 | 0.84 |
| 261 | 248 | 62.5 | (101.0) | 24.2 | 43.2 | 37 | 0.82 |
| 253 | 241 | 61.8 | 100.0 | 22.8 | 42.0 | 36 | 0.80 |
| 247 | 235 | 61.4 | 99.0 | 21.7 | 41.4 | 35 | 0.78 |
| 241 | 229 | 60.8 | 98.2 | 20.5 | 40.5 | 34 | 0.76 |
| 234 | 223 | - | 97.3 | (18.8) | - | - | - |
| 228 | 217 | - | 96.4 | (17.5) | - | 33 | 0.73 |
| 222 | 212 | - | 95.5 | (16.0) | - | - | 0.71 |
| 218 | 207 | - | 94.6 | (15.2) | - | 32 | 0.69 |
| 212 | 201 | - | 93.8 | (13.8) | - | 31 | 0.68 |
| 207 | 197 | - | 92.8 | (12.7) | - | 30 | 0.66 |
| 202 | 192 | - | 91.9 | (11.5) | - | 29 | 0.64 |
| 196 | 187 | - | 90.7 | (10.0) | - | - | 0.62 |
| 192 | 183 | - | 90.0 | (9.0) | - | 28 | 0.62 |
| 188 | 179 | - | 89.0 | (8.0) | - | 27 | 0.60 |
| 182 | 174 | - | 87.8 | (6.4) | - | - | 0.59 |
| 178 | 170 | - | 86.8 | (5.4) | - | 26 | 0.57 |
| 175 | 167 | - | 86.0 | (4.4) | - | - | 0.56 |
| 171 | 163 | - | 85.0 | (3.3) | - | 25 | 0.55 |
| 163 | 156 | - | 82.9 | (0.9) | - | - | 0.52 |
| 156 | 149 | - | 80.8 | - | - | 23 | 0.50 |
| 150 | 143 | - | 78.7 | - | - | 22 | 0.49 |
| 143 | 137 | - | 76.4 | - | - | 21 | 0.46 |
| 137 | 131 | - | 74.0 | - | - | - | 0.45 |
| 132 | 126 | - | 72.0 | - | - | 20 | 0.43 |
| 127 | 121 | - | 69.8 | - | - | 19 | 0.41 |
| 122 | 116 | - | 67.6 | - | - | 18 | 0.40 |
| 117 | 111 | - | 65.7 | - | - | 15 | 0.38 |
- 備考
-
※表中、（ ）内の数字はあまり用いられない。
※ロックウェルスケール A,C,D はダイヤモンド圧子（brale）を用いる。
※ この表はJIS 鉄鋼ハンドブック（1980）より抜粋。