Product Features:E7018 AC mild steel Low HydrogenExcellent restart capabilityRecommended Polarity: Alternating Current (AC), Direct Current Electrode Negative (DCEN), Direct Current Electrode Positive (DCEP) (Either Polarity) Diameter: 1/8 inch Weight lbs. (Kg): 1 (.453) Tensile Strength (PSI): 84,000 Amperage: 100 - 140