Weld Metal Chemistry Estimator Calculator

Estimate final weld metal chemistry from base metal and filler metal compositions using dilution percentage for single-pass welds

Input Parameters

Results

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Weld Metal Carbon
wt%
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Weld Metal Manganese
wt%
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Weld Metal Silicon
wt%
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Weld Metal Carbon Equiv (CE)
Note: Dilution is the fraction of base metal in the final weld deposit. Higher dilution means the weld chemistry is closer to the base metal. Critical for dissimilar metal welds and corrosion-resistant overlays.

Reference

Weld Metal Chemistry (mixing law): Weld Element = D x Base + (1-D) x Filler D = Dilution ratio (fraction of base metal melted into weld) Typical dilution: SMAW 20-35%, GMAW 15-30%, SAW 30-60% Carbon Equivalent (IIW): CE = C + Mn/6 + (Cr+Mo+V)/5 + (Cu+Ni)/15 Simplified: CE = C + Mn/6 + Si/24 (when alloy data unavailable)