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Contact SupplierER312 TIG Welding Wire is a high-alloy stainless steel filler rod designed for welding dissimilar metals and hard-to-weld steels. Known for its exceptional crack resistance and strength, ER312 is commonly used in maintenance, repair, and fabrication where unknown or mixed base metals are involved. It provides stable arc characteristics, excellent corrosion resistance, and a tough, ductile weld deposit, even under demanding service conditions.