Hardness Conversion Calculator
Convert between HRC, HB, HV and tensile strength (MPa) using ASTM E140 data with linear interpolation.
203040506068
Enter a value or use the slider to see conversions.
Based on ASTM E140-12b. Approximate conversion for carbon and alloy steels. Linear interpolation applied between table points.
Results are for reference only and may vary depending on material batch, processing conditions and testing methods. Always verify against applicable standards and supplier datasheets for critical applications. materialref.com accepts no liability for decisions based on these calculations.