ER70S-6 .035-Inch on 10-Pound Spool Carbon Steel Mig Solid Strong ABS Plastic Spool Welding Wire ER70S-6:It's the most common wire of the copper-coated mild steel GMAW (MIG) wires for single or multiple pass welding. Specifications:Weight: 10lbs(4.5kg)/Diameter: .035''(0.9mm) Shielding gas is required: 80-percent Ar+20-percent CO2 or 100-percent CO2,All Positions, Single and multi pass welding Applications:Great for construction work, farm implement fabrication, shaft buildup, tanks, truck bodies and general applications with poor fit-up or rusty, oily plates. Brand-new Plate: Use new ABS materials, which are more durable and more resistant to falling than ordinary ones.