Enter a value in any field and the others auto-calculate. Approximate conversions per ASTM E140.
Approx. Tensile (ksi)
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Approx. Tensile (MPa)
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Note: These are approximate conversions. Exact relationships depend on material composition and condition. Use ASTM E140 tables for critical applications. HRC range: 20–68 | HRB range: 0–100 | HB range: 100–739