K-T E7018AC is an electrode designed to be used on 220 volt 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 in 90-165 operating Amps.