Specifics and features: Size: 1.2mm with a 33 lb spool for extended welding operations. Conforms to AWS A5.18-05 standards for reliable welding performance. Typical mechanical properties: 450 MPa yield strength, 550 MPa tensile strength, and 30% elongation. Copper-plated and layer-wound design ensures smooth feeding and consistent arc stability. Suitable for structural steel and medium to heavy mill scale base materials. Package includes: 1 × ER70S-6 MIG Welding Wire 1.2mm,33 lbs .