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Fast, transparent steel calculations

Results use the values you enter. They do not replace a design standard, product certificate or physical test.

Carbon Equivalent

CE(IIW)

CE = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15

Pitting Resistance Equivalent

PREN

PREN = %Cr + 3.3 × %Mo + 16 × %N

Approximate Mass

Approximate steel weight