Nearly conversion for Rockwell C scale of Steel
| Rockwell C scale (1471N) |
Vickers | Brinell | Rockwell | Shore | ||
|---|---|---|---|---|---|---|
| Standard ball | Tungsten carbide ball |
A scale (588.4N) |
B scale (980.7N) |
|||
| 68 67 66 |
940 900 865 |
– – – |
– – – |
85.6 85.0 84.5 |
– – – |
97 95 92 |
| 65 64 63 62 61 |
832 800 772 746 720 |
– – – – – |
(739) (722) (705) (688) (670) |
83.9 83.4 82.8 82.3 81.8 |
– – – – – |
91 88 87 85 83 |
| 60 59 58 57 56 |
697 674 653 633 613 |
– – – – – |
(654) (634) 615 595 577 |
81.2 80.7 80.1 79.6 79.0 |
– – – – – |
91 88 87 85 83 |
| 55 54 53 52 51 |
595 577 560 544 528 |
– – – (500) (487) |
560 543 525 512 496 |
78.5 78.0 77.4 76.8 76.3 |
– – – – – |
74 72 71 69 68 |
| Rockwell C scale (1471N) |
Vickers | Brinell | Rockwell | Shore | ||
|---|---|---|---|---|---|---|
| Standard ball | Tungsten carbide ball |
A scale (588.4N) |
B scale (980.7N) |
|||
| 50 49 48 47 46 |
513 498 484 471 458 |
(475) (464) 451 442 432 |
481 469 455 443 432 |
75.9 75.2 74.7 74.1 73.6 |
– – – – – |
67 66 64 63 62 |
| 45 44 43 42 41 |
446 434 423 412 402 |
421 409 400 390 381 |
421 409 400 390 381 |
73.1 72.5 72.0 71.5 70.9 |
– – – – – |
60 58 57 56 55 |
| 40 39 38 37 36 |
392 382 372 363 354 |
371 362 353 344 336 |
371 362 353 344 336 |
70.4 69.9 69.4 68.9 68.4 |
– – – – (109.0) |
54 52 51 50 49 |
| 35 34 33 32 31 |
345 336 327 318 310 |
327 319 311 301 294 |
327 319 311 301 294 |
67.9 67.4 66.8 66.3 65.8 |
(108.5) (108.0) (107.5) (107.0) (106.0) |
48 47 46 44 43 |
| Rockwell C scale (1471N) |
Vickers | Brinell | Rockwell | Shore | ||
|---|---|---|---|---|---|---|
| Standard ball | Tungsten carbide ball |
A scale (588.4N) |
B scale (980.7N) |
|||
| 30 29 28 27 26 |
302 294 286 279 272 |
286 279 271 264 258 |
286 279 271 264 258 |
65.3 64.7 64.3 63.8 63.3 |
(105.5) (104.5) (104.0) (103.0) (102.5) |
42 41 41 40 38 |
| 25 24 23 22 21 |
266 260 254 248 243 |
253 247 243 237 231 |
253 247 243 237 231 |
62.8 62.4 62.0 61.5 61.0 |
(101.5) (101.0) 100.0 99.0 98.5 |
38 37 36 35 35 |
| 20 (18) (16) (14) (12) |
238 230 222 213 204 |
226 219 212 203 194 |
226 219 212 203 194 |
60.5 – – – – |
97.8 96.7 95.5 93.9 92.3 |
34 33 32 31 29 |
| (10) ( 8) ( 6) ( 4) ( 2) ( 0) |
196 188 180 173 166 160 |
187 179 171 165 158 152 |
187 179 171 165 158 152 |
– – – – – – |
90.7 89.5 87.1 85.5 83.5 81.7 |
28 27 26 25 24 24 |
Numbers with ( ) are for reference.
