Calculate the weldability of steel based on its chemical composition.
Chemical Composition (%)
Weldability Analysis
Enter chemical composition for CE analysis
About this calculator
Overview
The Carbon Equivalent (CE) is a value that assesses the weldability of steel and cast iron. It accounts for the influence of various alloying elements on the material's hardness and cold-cracking susceptibility.
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Pro Tips
Check your material's Mill Test Report (MTR) for exact chemical percentages.
If CE is high, use low-hydrogen electrodes (like 7018) to minimize cracking risks.
Slow cooling after welding can also help reduce the hard, brittle phases associated with high CE.
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Fun Facts
"A carbon equivalent above 0.40% typically indicates that preheating of the joint may be necessary to prevent cracking."
"Manganese is the alloying element with the highest influence on CE after Carbon itself."
"The formula helps determine the 'Heat Affected Zone' (HAZ) properties after welding."
Formula: CE (IIW) = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15
