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Hardness Conversion: HRC
30 to 39
Hardness conversion table — Rockwell B, Rockwell C, Brinell, and Vickers equivalents per ASTM E140 and ASTM A370
| scale | hardness value | approximate tensile ksi | approximate tensile mpa | hb (dimensionless) | hrc | hv (dimensionless) | material class |
|---|---|---|---|---|---|---|---|
| HRC | 30 | 73 | 503 | 250 | 30 | 302 | steel |
| HRC | 31 | 76 | 524 | 258 | 31 | 310 | steel |
| HRC | 32 | 78 | 538 | 266 | 32 | 318 | steel |
| HRC | 33 | 81 | 558 | 276 | 33 | 327 | steel |
| HRC | 34 | 83 | 572 | 284 | 34 | 336 | steel |
| HRC | 35 | 86 | 593 | 294 | 35 | 345 | steel |
| HRC | 36 | 89 | 614 | 303 | 36 | 354 | steel |
| HRC | 37 | 91 | 627 | 313 | 37 | 363 | steel |
| HRC | 38 | 94 | 648 | 322 | 38 | 372 | steel |
| HRC | 39 | 97 | 669 | 331 | 39 | 382 | steel |
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