1170S6023 - ER70S-6 .023" Solid Mild Steel MIG Wire - 11lb Spool

High-Performance ER70S-6 Solid Wire for Industrial Applications

The ER70S-6 .023" Mild Steel MIG Wire is a premium general-purpose welding consumable designed for the Gas Metal Arc Welding (GMAW) process. Engineered to meet AWS A5.18 specifications, this solid wire is formulated with higher levels of manganese and silicon compared to standard ER70S-3 wires. These added deoxidizers significantly enhance the wire's ability to handle base metals with light to moderate mill scale, rust, or oil, ensuring sound, porosity-free welds in less-than-perfect surface conditions.

This 11lb (5kg) spool is precision layer-wound to ensure tangle-free feeding, which is critical for maintaining a stable arc and consistent weld bead profile. The wire features a high-quality copper coating that serves a dual purpose: it protects the steel from oxidation during storage and improves electrical conductivity at the contact tip, reducing tip wear and promoting smoother arc initiation. With a tensile strength exceeding 70,000 PSI, this wire is suitable for structural applications requiring robust mechanical properties.

The 0.023-inch diameter is specifically optimized for low-amperage welding on thin-gauge materials, making it an essential inventory item for fabrication shops dealing with sheet metal, HVAC ductwork, and light structural components. It operates exceptionally well in the short-circuit transfer mode, providing a controllable puddle that minimizes burn-through on delicate substrates. Compatible with both 100% CO2 for deeper penetration and Argon/CO2 blends (typically C25) for a smoother arc and reduced spatter, this wire offers flexibility for various industrial setups.

Technical Specifications:

• Classification: AWS A5.18 ER70S-6


• Diameter: 0.023" (0.6mm)


• Spool Weight: 11 lbs (approx. 5 kg)


• Spool Dimensions: Typically 8-inch diameter with 2-inch arbor


• Shielding Gas: CO2 or Ar/CO2 Mix