🔬
Carbon Equivalent Calculator
Calculate steel carbon equivalent (CE) and weldability risk using IIW formula
IIW Formula (International Institute of Welding):
• CE = C + (Mn / 6) + [(Cr + Mo + V) / 5] + [(Ni + Cu) / 15]
Indicates steel weldability and susceptibility to cold cracking.
• CE = C + (Mn / 6) + [(Cr + Mo + V) / 5] + [(Ni + Cu) / 15]
Indicates steel weldability and susceptibility to cold cracking.
Chemical Composition (% by Weight)
Calculation Results
⚠️ Carbon equivalent values above 0.45% typically require preheating before welding to prevent hydrogen-induced cracking. Always follow certified welding procedure specifications (WPS).