Best Welder For Galvanized Steel. Back to Top. Weld splatter and flame cutting splatter must be removed by the fabricator prior to galvanizing to ensure a quality surface finish is achieved.
When you breathe these fumes they may work deeply into your lungs. Oxyacetylene welding galvanized steel sheet either with or without a filler rod is generally carried out on the lighter gauges. Once clean your best choice of welding rod would be 7018s.
Weld splatter and flame cutting splatter must be removed by the fabricator prior to galvanizing to ensure a quality surface finish is achieved.
Resistance welding is generally used to join galvanized steel less than 14 inch thick and with a zinc coating lighter than 1 ozft 2 305 gm 2. This specification relating to the preparation of the metal and the actual welding process calls for the weld to be made on steel that is free of zinc although the component has already been galvanized. For mild steel galvanized steel sheet J421J422 or J423 welding rods should be preferred. Welding galvanized metal is dangerous because zinc oxide is released into the air as the metal melts.