Hardness Converter
Values are based on standard conversion tables for Non-Austenitic Steels. Results for other materials may vary.
Rockwell C
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HRCRockwell B
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HRBBrinell
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HBVickers
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HVApprox. Tensile Strength
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PSI |--
MPaScale Reference
Rockwell C (HRC): Used for hard materials (hardened steels). Scale usually ranges from 20 to 70.
Rockwell B (HRB): Used for softer materials (aluminum, brass, soft steels). Scale ranges from 0 to 100.
Brinell (HB): Uses a ball indenter. Standard for castings and forgings.
Vickers (HV): Uses a diamond pyramid. Precise and applicable to almost all materials regardless of hardness.
Hardness Comparison Table
| HRC | HB | HV | Tensile (ksi) |
|---|---|---|---|
| 20 | 226 | 226 | 110 |
| 30 | 285 | 286 | 138 |
| 40 | 371 | 392 | 181 |
| 50 | 481 | 513 | 243 |
| 60 | -- | 697 | -- |