Product Features:ER5356 aluminum MIGGas Metal Arc Welding (GMAW) welding wire5 percent magnesium contentBright finishFlows freely at 1,180 degrees Fahrenheit (637.8 degrees Celsius) Required Shielding Gas: Argon Recommended Polarity: Direct Current Electrode Positive (DCEP) Reverse Diameter: .030 inchWeight lbs. (Kg): 1 (.453)Tensile Strength (PSI): 63,000