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💎 Vickers Hardness Number Calculator
Calculate Vickers hardness number, indentation area, and hardness conversions
📐 Vickers Hardness Formulas
HV = 1.854 × F/d²
d = (d₁ + d₂)/2
A = d²/1.854
HV = F/A
HV = Vickers hardness number, F = applied force (kgf), d = diagonal length (mm), A = indentation area (mm²), d₁,d₂ = diagonal measurements
💡 Tips
- Vickers test uses a diamond pyramid indenter
- Measure both diagonals and use the average
- Standard test loads are 1, 5, 10, 30, 50, 100 kgf
- Indentation should be 0.2-1.5 mm diagonal
- Higher HV means harder material
- Vickers is suitable for all materials