K-T E7018AC is an electrode designed to be used on 208/230 AC welders, and yields excellent welds on AC welders. It is used for welding normal low alloy steels, carbon steels, and free machining steels. It has a good deposition rate with low spatter and medium penetration. 7018 AC?s typical applications include pressure vessels, cold rolled steels and structural steels. 1/8" 125-220 operating Amps.