S307612-085 - Hobart Quantum Arc 6 ER70S-6 MIG Wire .045 45lb Spool

Technical Overview of Hobart Quantum Arc 6

The Hobart Quantum Arc 6 is a premium mild steel solid wire formulated to meet AWS A5.18 ER70S-6 classifications. This .045-inch diameter wire is supplied on a 45-pound fiber spool, designed for high-volume industrial applications ranging from general fabrication to automated robotic cells. The wire chemistry is enriched with higher levels of manganese and silicon deoxidizers compared to standard ER70S-3 wires. This chemical composition provides a robust scavenging action in the weld puddle, effectively floating out impurities and minimizing porosity when welding on base metals with light rust, oil, or mill scale.

Engineered for versatility, Quantum Arc 6 operates efficiently with both 100% Carbon Dioxide (CO2) and Argon/CO2 shielding gas blends (typically 75/25). The copper-coated finish ensures optimal electrical contact at the contact tip, reducing arc instability and promoting extended consumable life. Its feedability characteristics are strictly controlled during manufacturing to ensure a consistent cast and helix, which is critical for preventing wire flipping and tangling in long conduit runs typical of robotic arms and boom-mounted feeders.

This wire is suitable for single and multi-pass applications in all positions (using short-circuit transfer) or flat/horizontal positions (using spray transfer). It delivers high tensile strength deposits (typically 70,000+ psi) and excellent impact toughness, making it a reliable choice for structural codes and pressure vessel fabrication. The 45lb fiber spool packaging offers an environmentally conscious disposal option compared to traditional plastic spools while maintaining the structural integrity needed for industrial handling.