55070S6045 - Can-Arc ER70S-6 .045 Mild Steel MIG Wire - 550lb Drum

Superior Weldability and Arc Performance

Upgrade your welding results with the Can-Arc ER70S-6 .045" MIG Wire, now available in a massive 550 lb drum for serious fabricators. This wire is the workhorse of the mild steel welding world, known for its versatility and forgiving nature. If you are welding on structural steel, farm implements, or general fabrication projects, the ER70S-6 formula provides excellent wetting action, creating a flat bead profile that requires minimal post-weld grinding. The "S-6" designation means it is loaded with deoxidizers (manganese and silicon), which act as cleaning agents in the weld puddle, floating out impurities and allowing you to weld over mill scale and light rust without sacrificing bead quality.

The copper-coated finish on this Can-Arc wire isn't just for looks; it ensures smooth feeding through your MIG gun liner and optimal electrical transfer at the contact tip. This results in a crisp, stable arc with low spatter, keeping your cleanup time to a minimum. The 0.045-inch diameter is a standard choice for medium-to-heavy plate welding, offering higher deposition rates than .035" wire while remaining controllable in various positions depending on your transfer mode.

Choosing the 550 lb drum option is a smart move for shops looking to economize. Buying in bulk lowers the cost per pound and significantly reduces the interruptions caused by running out of wire in the middle of a critical joint. While often used in automation, these drums are also excellent for stationary bench welding setups where a boom feeder is utilized. Pair this wire with either 100% CO2 for deep penetration and economy, or a C25 (75% Argon / 25% CO2) mix for a smoother arc and reduced spatter. Experience the difference that consistent, high-quality filler metal makes in your daily fabrication work.