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Technical

Common hardness values

HRC HS HV Brandt HRC HS HV Brandt
70   1037 - - 40 53.5 377 370 3.17
69   997 - - 39 52.3 367 360 3.21
68 96.6 959 - - 38 51.1 357 350 3.26
67 94.6 923 - - 37 50 347 341 3.30
66 92.6 889 - - 36 48.8 338 332 3.34
65 90.5 856 - - 35 47.8 329 323 3.39
64 88.4 825 - - 34 46.6 320 314 3.43
63 86.5 795 - - 33 45.6 312 306 3.48
62 84.5 766 - - 32 44.5 304 298 3.52
61 83.1 739 - - 31 43.5 296 291 3.56
60 81.4 713 - - 30 42.5 289 283 3.61
59 79.7 688 - - 29 41.6 281 276 3.65
58 78.1 664 - - 58 40.6 274 269 3.70
57 76.5 642 - - 27 39.7 268 263 3.74
56 74.9 620 - - 26 38.8 261 257 3.78
55 73.5 599 - - 25 37.9 255 251 3.83
54 71.9 579 - - 24 37 249 245 3.87
53 69.1 561 - - 23 36.3 243 240 3.91
52 67.7 543 - - 22 35.5 237 234 3.95
51 66.3 525 501 2.73 21 34.7 231 229 4.00
50 95.5 509 488 2.77 20 34 226 225 4.03
49 63.7 493 474 2.81 19 33.2 221 220 4.07
48 62.6 478 461 2.85 18 32.6 216 216 4.11
47 61059.7 463 449 2.89 17 31.9 211 211 4.15
46 57.1 449 436 2.93 16 - - - -
45 55.9 436 424 2.97 15 - - - -
44 58.4 413 413 3.01 14 - - - -
43 57.1 401 401 3.05 13 - - - -
42 55.9 391 391 3.09 12 - - - -
41 54.7 388 380 3.13 11 - - - -