Hardness Tables
C
Rockwell
|
Brinell
|
Sclerscope
|
Vickers or
Firth
|
72 70 68 66 |
780 745 712 682 |
106 102 98 94 |
1224 1116 1022 941 |
64 62 60 58 |
653 627 601 578 |
91 87 84 81 |
868 804 746 694 |
56 54 52 50 |
55 534 514 495 |
78 76 73 71 |
650 606 587 551 |
49 48 46 45 |
477 461 444 429 |
68 66 64 62 |
534 502 474 460 |
43 42 41 40 |
415 401 388 375 |
61 59 57 56 |
435 423 401 390 |
39 38 36 35 |
363 352 341 331 |
54 53 51 50 |
380 361 344 334 |
33 32 31 30 |
321 311 302 293 |
49 47 46 45 |
320 311 303 292 |
29 28 27 26 |
285 277 269 262 |
44 43 42 41 |
285 278 270 261 |
25 24 23 21 |
255 248 241 235 |
40 39 38 37 |
255 249 240 235 |
20 19 17 15 |
229 223 217 212 |
36 35 34 34 |
228 222 217 213 |
14 13 12 11 |
207 201 197 192 |
33 32 31 30 |
208 201 197 192 |
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