69100506 - Bonarc ER70S-6 .023 Solid MIG Welding Wire - 5kg Spool

High-Performance ER70S-6 Solid MIG Wire for Precision Applications

The Bonarc ER70S-6 .023" (0.6mm) Steel Solid MIG Wire is a premium-grade consumable designed for general purpose gas metal arc welding (GMAW). Engineered with a higher content of silicon and manganese, this wire acts as a powerful deoxidizer, making it an excellent choice for welding on base metals that may have light rust, mill scale, or oil. The chemical composition ensures a highly fluid weld pool, resulting in excellent wetting action and a flat bead profile that requires minimal grinding. This specific alloy classification (ER70S-6) is the industry standard for structural steel fabrication, offering a perfect balance of tensile strength and ductility.

One of the standout features of this Bonarc wire is its precision layer winding. Unlike random-wound spools that can snag or tangle during high-speed welding, this 5kg spool is meticulously wound to ensure smooth, uninterrupted feeding through the liner and contact tip. This consistency is critical for maintaining a stable arc and preventing burn-back, especially when working with the fine 0.023" diameter. The wire is copper-coated to improve electrical conductivity and protect against corrosion during storage, ensuring that the wire remains fresh and ready to weld even after periods of downtime.

This 0.023-inch diameter variant is specifically optimized for low-amperage applications. It allows operators to maintain a stable short-circuit transfer mode, which is essential for welding thin-gauge materials without excessive heat input or distortion. Whether utilized in a small fabrication shop or a large industrial manufacturing environment, the Bonarc ER70S-6 delivers reliable mechanical properties, including high yield strength and impact toughness, meeting the rigorous demands of AWS A5.18 standards.

Key Technical Benefits:

• Superior Deoxidizing: High Mn/Si levels combat porosity caused by surface contaminants.


• Stable Arc Characteristics: Promotes a smooth, consistent arc with minimal spatter generation.


• Versatile Shielding Gas Compatibility: Performs exceptionally well with 100% CO2 for deep penetration or Argon/CO2 blends for a cleaner appearance and reduced spatter.


• Optimized Packaging: The 5kg (11lb) spool size fits most compact and portable MIG welding machines, making it a versatile choice for field work and shop use alike.