硬度對照表
ROCKKWELL | H.V. | BRI-NELL30 | |||
C | A | D | G | ||
71 | 87.0 | 79.5 | -- | 1160 | -- |
70 | 86.5 | 78.5 | -- | 1076 | -- |
69 | 86.0 | 78.0 | -- | 1004 | -- |
68 | 85.5 | 77.0 | -- | 942 | -- |
67 | 85.0 | 76.0 | -- | 894 | -- |
66 | 84.5 | 75.5 | -- | 854 | -- |
65 | 84.0 | 74.5 | -- | 820 | -- |
64 | 83.5 | 74.0 | -- | 789 | -- |
63 | 83.0 | 73.0 | -- | 763 | -- |
62 | 82.5 | 72.5 | -- | 739 | -- |
61 | 81.5 | 71.5 | -- | 716 | -- |
60 | 81.0 | 71.0 | -- | 695 | 614 |
59 | 80.5 | 70.0 | -- | 675 | 600 |
58 | 80.0 | 69.0 | -- | 655 | 587 |
57 | 79.5 | 68.5 | -- | 636 | 573 |
56 | 79.0 | 67.5 | -- | 617 | 560 |
55 | 78.5 | 67.0 | -- | 598 | 547 |
54 | 78.0 | 66.0 | -- | 580 | 534 |
53 | 77.5 | 65.5 | -- | 562 | 522 |
52 | 77.0 | 64.5 | -- | 545 | 509 |
51 | 76.5 | 64.0 | -- | 528 | 496 |
50 | 76.0 | 63.0 | -- | 513 | 484 |
49 | 75.5 | 62.0 | -- | 498 | 472 |
48 | 74.5 | 61.5 | -- | 485 | 460 |
47 | 74.0 | 60.5 | -- | 471 | 448 |
46 | 73.5 | 60.0 | -- | 458 | 437 |
45 | 73.0 | 59.0 | -- | 446 | 426 |
44 | 72.5 | 58.5 | -- | 435 | 415 |
43 | 72.0 | 57.5 | -- | 424 | 404 |
42 | 71.5 | 57.0 | -- | 413 | 393 |
41 | 71.0 | 56.0 | -- | 403 | 382 |
40 | 70.5 | 55.5 | -- | 393 | 372 |
39 | 70.0 | 54.5 | -- | 383 | 362 |
38 | 69.5 | 54.0 | -- | 373 | 352 |
37 | 69.0 | 53.0 | -- | 363 | 342 |
36 | 68.5 | 52.5 | -- | 353 | 332 |
35 | 68.0 | 51.5 | -- | 343 | 322 |
34 | 67.5 | 50.5 | -- | 334 | 313 |
33 | 67.0 | 50.0 | -- | 325 | 305 |
32 | 66.5 | 49.0 | -- | 317 | 297 |
31 | 66.0 | 48.5 | -- | 309 | 290 |
30 | 65.5 | 47.5 | 92.0 | 301 | 283 |
29 | 65.0 | 47.0 | 91.0 | 293 | 276 |
28 | 64.5 | 46.0 | 90.0 | 285 | 270 |
27 | 64.0 | 45.5 | 89.0 | 278 | 266 |
26 | 63.5 | 44.5 | 88.0 | 271 | 260 |
25 | 63.0 | 44.0 | 87.0 | 264 | 255 |
24 | 62.5 | 43.0 | 86.0 | 257 | 250 |
23 | 62.0 | 42.5 | 84.5 | 251 | 245 |
22 | 61.5 | 41.5 | 83.5 | 246 | 240 |
21 | 61.0 | 41.0 | 82.5 | 241 | 235 |
20 | 60.5 | 40.0 | 81.0 | 236 | 230 |
18 | -- | -- | -- | 230 | -- |
16 | -- | -- | -- | 220 | -- |