S307308-070 - Hobart Quantum Arc 3 ER70S-3 .035 MIG Wire 950lb Drum

Precision and Performance: Hobart Quantum Arc 3 ER70S-3

The Hobart Quantum Arc 3 is a premium solid wire electrode designed for the professional welder who demands consistency and quality in every bead. Classified as ER70S-3, this wire is formulated with a balanced chemical composition of silicon and manganese. Unlike ER70S-6 wires, which have higher deoxidizer levels, the ER70S-3 classification is optimized for welding on clean, oil-free, and rust-free base metals. This results in a weld puddle that is more fluid and produces significantly fewer silica islands on the surface of the finished weld. For applications where parts must be painted, plated, or powder-coated immediately after welding, the reduced cleanup time offered by Quantum Arc 3 is a major advantage.

Welders will appreciate the smooth arc characteristics and low spatter levels associated with this wire. The 0.035-inch diameter is a versatile size, perfect for bridging gaps on thinner materials while still capable of handling multi-pass welds on thicker sections. The copper coating on the wire serves a dual purpose: it enhances electrical conductivity for a stable arc and protects the wire from oxidation during storage. Furthermore, the high-quality winding and surface finish ensure excellent feedability, reducing the risk of bird-nesting or liner clogging, even over long conduit runs typical in robotic setups.

Whether you are using short-circuit transfer on thin sheet metal or spray transfer for higher deposition rates, Hobart Quantum Arc 3 delivers reliable penetration and sidewall fusion. It operates effectively with straight CO2 for deep penetration and economy, or with Argon/CO2 mixtures for a smoother arc and reduced spatter. This wire is particularly well-suited for single-pass and multi-pass welds on mild steel, offering tensile strengths that meet or exceed AWS requirements. The 950lb Robo Pak ensures that once you dial in your settings, you can keep welding for days without interruption, maintaining the thermal rhythm of your welding procedure.

Technical Benefits

• Clean Finish: Low silicon deposits make post-weld grinding and cleaning faster.
• Stable Arc: Consistent chemistry provides a predictable arc response.
• Versatile Shielding: Compatible with various gas mixes to suit travel speed and position.
• High Efficiency: Designed for fast travel speeds in automatic applications.