ER70S-6 MIG Welding Wire 2 lb. is copper-coated MIG wire that is great for welding on metals with a medium to high presence of mill scale. It works best on clean, oil-free and rust-free base material. It has high silicon and manganese deoxidizer levels. Shielding gases include argon and carbon dioxide blends, argon and oxygen blends, straight carbon dioxide and 3- or 4-part gas mixes. Features High grade steel is used to optimize consistency. Electroplated copper coating for reduced flaking and weld performance. Full manufacturing process is totally automated to increase consistency in weld performance. Our spools are precision would to achieve optimal performance. Excellent toe-wetting provides optimal bead appearance Supports short-circuiting, globular, axial spray and pulsed spray transfer Welds in all positions Typical applications include: Sheetmetal to 380-485 MPa (55-70 ksi) yield strength material; automotive repair; robotic or hard automation; structural steel