Is it safe to weld galvanized steel?
On One Hand: Hazardous FumesWelding galvanized steel produces zinc oxide fumes, which can result in symptoms called metal fume fever in welders. The symptoms, which usually resolve within 24 hours, resemble flu symptoms and include fever, chills, cough, weakness and aches.On the Other: Exposure ReductionTo lower the release of fumes and also to get a better weld, welders can grind back the galvanized coating by 4 or more inches from either side of the weld. Also, if steel is galvanized after fabrication, it releases fewer fumes.Bottom LineEmployers as well as employees should be diligent about limiting exposure to fumes from welding galvanized steel. Proper ventilation, protective clothing and workplace safety precautions should be followed at all times.Source:Oxarc: Welding Safety GuideThe American Society of Safety Engineers: Are Welding Fumes an Occupational Health Risk Factor?U.S.
