Material Hardness Converter
Rockwell C (HRC) Converter
Convert from Rockwell C to other hardness scales
Brinell (HB) Converter
Convert from Brinell to other hardness scales
Vickers (HV) Converter
Convert from Vickers to other hardness scales
Formula
Tensile Strength (psi) ≈ HB x 500 | HV ≈ HB x 1.05 (approximate for steels)
Frequently Asked Questions
What is the difference between Rockwell, Brinell, and Vickers hardness?
Rockwell measures depth of indentation under load. Brinell uses a steel ball to measure the diameter of indentation. Vickers uses a diamond pyramid and measures the diagonal of the impression. Each is suited for different material types and thicknesses.
When should I use HRC vs HRB?
Use HRC (Rockwell C) for hardened steels and materials with hardness above about 20 HRC (225 HB). Use HRB (Rockwell B) for softer metals like mild steel, brass, and aluminum with hardness below about 100 HRB.
Can I convert hardness to tensile strength?
An approximate conversion exists: Tensile Strength (psi) is roughly equal to Brinell Hardness x 500 for carbon and alloy steels. This is an estimate only and does not apply to all materials.
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