Welding galvanized steel can produce more fumes than welding uncoated steel, because the zinc coating can vaporize and oxidize in the welding arc.

According to the American Welding Society (AWS) Fact Sheet #25, metal fume fever may be caused by exposure to excessive concentrations of welding fume containing zinc, magnesium, copper and cadmium.

When steel fabrications or sections are immersed in molten zinc, ... Hot-Dip Galvanized Steel - Avoiding Distortion During Processing. Download PDF Copy; Request Quote; Oct 18 2002. ... Ensure welding ...

The frame is made up of galvanized steel stock, which makes it much stronger than many DIY CNCs out there. [Mario] had a friend weld the steel up for him, we hope he took the proper precautions ...