For welding galvanized steel, it is recommended to use a welding rod specifically designed for the purpose. These are called "galvanized steel welding rods" or "zinc-coated electrodes". They are designed to provide a strong weld while minimizing the amount of zinc vapor that is released during welding, which can be harmful if inhaled.
The most commonly used welding rods for GI (Galvanized Iron) welding are AWS A5.1 E7018, AWS A5.5 E7016, and AWS A5.5 E6013. Among these, AWS A5.1 E7018 is the most commonly used electrode for welding galvanized steel. It is suitable for both AC and DC welding and produces a strong, high-quality weld with good penetration.
However, it is important to note that welding galvanized steel can be challenging, as the zinc coating on the steel can cause spattering, fumes, and other issues. Proper safety precautions should be taken, including the use of proper ventilation, personal protective equipment, and careful handling of the welding rod.
