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Convert HRC, HRB, HB, HV, HK and other hardness scales instantly
with ASTM E140 standard conversion tables.
This hardness converter helps engineers, metallurgists, machine shops and quality control professionals convert between HRC, HRB, HB, HV, HK and other hardness scales using ASTM E140 conversion tables.
A hardness converter is a tool used to convert one hardness scale into another such as HRC, HRB, HB, HV or HK using standard ASTM E140 conversion tables.
This calculator supports Rockwell (HRC, HRB, HRA), Brinell (HB), Vickers (HV), Knoop (HK) and several superficial Rockwell hardness scales.
Hardness conversions are approximate values based on ASTM E140 standards. Actual results may vary depending on material composition, heat treatment and testing method.
No. The conversion values are intended for engineering reference and estimation only. For certification or critical applications, actual laboratory hardness testing is recommended.
This converter uses ASTM E140 standard hardness conversion reference tables.
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