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Brinell Hardness | Vickers Hardness | Rockwell Hardness | Rockwell Hardness | Equiv Rm | Equiv Rm | Equiv Rm |
---|---|---|---|---|---|---|
HB | HV | B | C | tonf/in² | kgf/mm² | N/mm² |
601 | 640 | - | 57 | - | - | - |
578 | 615 | - | 56 | - | - | - |
555 | 591 | 120 | 54.5 | - | - | - |
534 | 569 | 119 | 53.5 | - | - | - |
514 | 547 | 119 | 52 | - | - | - |
495 | 528 | 117 | 51 | - | - | - |
477 | 508 | 117 | 49.5 | - | - | - |
461 | 491 | 116 | 48.5 | 101 | 160 | 1569 |
444 | 474 | 115 | 47 | 98 | 155 | 1520 |
429 | 455 | 115 | 45.5 | 95 | 150 | 1471 |
415 | 440 | 114 | 44.5 | 92 | 145 | 1422 |
401 | 425 | 113 | 43 | 88 | 139 | 1363 |
388 | 410 | 112 | 42 | 85 | 134 | 1314 |
375 | 396 | 112 | 40.5 | 82 | 129 | 1265 |
363 | 383 | 110 | 39 | 80 | 126 | 1236 |
352 | 372 | 110 | 38 | 77 | 121 | 1187 |
341 | 360 | 109 | 36.5 | 75 | 118 | 1157 |
331 | 350 | 109 | 35.5 | 73 | 114 | 1118 |
321 | 339 | 108 | 34.5 | 71 | 111 | 1089 |
311 | 328 | 108 | 33 | 68 | 107 | 1049 |
302 | 319 | 107 | 32 | 66 | 104 | 1020 |
293 | 309 | 106 | 31 | 64 | 101 | 990 |
285 | 301 | 105 | 30 | 63 | 99 | 971 |
277 | 292 | 104 | 29 | 61 | 96 | 941 |
269 | 284 | 104 | 27.5 | 59 | 93 | 912 |
262 | 276 | 103 | 26.5 | 58 | 91 | 892 |
255 | 269 | 102 | 25.5 | 56 | 89 | 873 |
248 | 261 | 102 | 24 | 55 | 87 | 853 |
241 | 253 | 100 | 23 | 53 | 84 | 824 |
235 | 247 | 99 | 22 | 51 | 81 | 794 |
229 | 241 | 98 | 20.5 | 50 | 79 | 775 |
223 | 235 | 97 | - | 49 | 77 | 755 |
217 | 228 | 96 | - | 48 | 76 | 745 |
212 | 223 | 96 | - | 46 | 73 | 716 |
207 | 218 | 95 | - | 45 | 71 | 696 |
197 | 208 | 93 | - | 43 | 68 | 667 |
187 | 197 | 91 | - | 41 | 65 | 637 |
179 | 189 | 89 | - | 39 | 62 | 608 |
170 | 179 | 87 | - | 36 | 57 | 559 |
163 | 172 | 85 | - | 35 | 55 | 539 |
156 | 165 | 83 | - | 34 | 54 | 530 |
149 | 157 | 81 | - | 32 | 51 | 500 |
143 | 150 | 79 | - | 31 | 49 | 481 |
137 | 144 | 77 | - | 31 | 49 | 481 |
131 | 138 | 74 | - | 30 | 47 | 461 |
126 | 133 | 72 | - | 29 | 46 | 451 |
121 | 127 | 70 | - | 28 | 44 | 431 |
116 | 122 | 68 | - | 27 | 43 | 422 |
111 | 117 | 66 | - | 26 | 41 | 402 |
107 | 113 | 64 | - | 25 | 39 | 382 |
103 | 108 | 61 | - | 24 | 38 | 373 |