🌡️ Heat Input Calculator — AWS D1.1 / ASME IX
Voltage (V)
Amperage (A)
Travel Speed (IPM)
Thermal Efficiency
1.0 — GMAW / FCAW / SAW
0.8 — SMAW
0.6 — GTAW (TIG)
Calculate →
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Heat input (kJ/in)
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Heat input (kJ/mm)
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V × A input
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Travel speed
≤110 kJ/in (A36)
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