ED031411 - Lincoln SuperArc L-56 .035 MIG Wire 33lb Steel Spool ER70S-6

Technical Overview: Lincoln SuperArc L-56 ER70S-6

The Lincoln Electric SuperArc L-56 is a premium copper-coated mild steel solid MIG welding wire designed to meet AWS A5.18 ER70S-6 specifications. This consumable is engineered with elevated levels of manganese and silicon deoxidizers, making it the preferred choice for applications involving base metals with medium to heavy mill scale, rust, or surface contaminants. The chemical composition allows for aggressive cleaning action in the weld pool, mitigating porosity and ensuring sound mechanical properties in the finished weldment.

A defining technical characteristic of the L-56 series is the proprietary MicroGuard Ultra surface treatment. This advanced processing ensures a clean, consistent wire surface that minimizes friction within the welding gun liner and contact tip. For automated and high-production environments, this translates to superior arc stability and feeding performance, reducing downtime associated with bird-nesting or tip burn-back. The wire supports multiple metal transfer modes, including short-circuiting, globular, axial spray, and pulsed spray transfer, providing versatility across various plate thicknesses and welding positions.

The product is supplied on a 33 lb (15 kg) steel basket spool, which offers rigidity and environmental benefits through recyclability. It is compatible with a broad range of shielding gases, including 100% CO2 for deep penetration and C25 (75% Argon / 25% CO2) for reduced spatter and improved bead aesthetics. The .035-inch diameter is optimal for a wide range of structural and fabrication applications, offering a balance between deposition rate and control.

Key Technical Specifications:

• Classification: AWS ER70S-6
• Diameter: 0.035 inches
• Deoxidizers: High Manganese and Silicon
• Coating: Copper with MicroGuard Ultra
• Current Type: DCEP (Direct Current Electrode Positive)