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Hardness converter
Approximate HRC, Brinell, Vickers and Rockwell B conversions for steel, with a ballpark tensile strength.
Tabulated steel conversions (ISO 18265 / ASTM E140 style). Cast iron, stainless and case depth need their own charts — treat as planning only.
Inputs
Typical
Reading
HRC
Results
HRC
40
- HB
- 372
- HV
- 392
- HRB
- —
- Est. Rm
- 1,246MPa
Model
Linear interpolation of a steel HRC / HB / HV / HRB table. Rm ≈ f(HB).
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