Materials
Common problems when welding galvanised steel
Quick answer
Common galvanised steel welding problems: porosity and spatter from boiling zinc, plus flu-like metal fume fever from the smoke. Fix by grinding the coating back and ventilating seriously.
Problem → cause → fix
| Symptom | Cause | Fix |
|---|---|---|
| Spatter storm | boiling zinc | higher amps, drag, anti-spatter |
| Porosity | zinc in the pool | grind coating off weld zone |
| Flu-like that night | zinc fume | ventilation + respirator |
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