EDS30778 - Lincoln SuperArc LA-100 ER100S-G .035 MIG Wire 44lb Spool

Reliable Performance for Tough Steel Jobs

When your project demands more than just a standard mild steel weld, the Lincoln Electric SuperArc® LA-100 is the MIG wire you reach for. Designed for welders who work with high-strength, low-alloy steels, this wire delivers the punch needed to join materials like HY-80 and quenched and tempered steels without sacrificing playability. If you are repairing heavy earth-moving equipment, working on crane booms, or fabricating pressure vessels, the LA-100 provides the 100,000 psi tensile strength required to ensure your welds hold up under extreme stress. It bridges the gap between standard ER70S-6 wires and more exotic filler metals, giving you the strength you need with the MIG process you already know.

We know that wire feeding issues are the number one frustration on the shop floor. That's why the SuperArc® LA-100 features Lincoln's superior copper coating. This isn't just for looks; it ensures the wire glides smoothly through your gun liner and makes excellent electrical contact at the tip. The result? Crisp, reliable arc starts every time you pull the trigger, and less burn-back or bird-nesting to slow you down. You spend more time welding and less time swapping out contact tips or clearing jams. The arc stability provided by this wire also means less spatter to clean up afterwards, keeping your post-weld grinding to a minimum.

Versatility is key in a job shop, and this wire delivers. Whether you are welding out of position using short-circuit transfer or laying down heavy fill passes in the flat position with spray transfer, the LA-100 handles it. It responds exceptionally well to pulsed MIG settings, giving you great control over heat input and bead profile—critical when working with heat-sensitive quenched steels where maintaining mechanical properties is vital. The .035-inch diameter is a perfect all-rounder, offering enough deposition for thicker sections while remaining controllable for intricate passes or root welds.

This 44 lb spool is built for serious work, minimizing the number of times you have to stop and reload. It fits standard industrial wire feeders and is wound tightly to prevent tangles. With the SuperArc® LA-100, you get a bead that looks good, penetrates deep, and meets the tough mechanical specs your clients demand. Don't risk a weld failure on critical equipment; upgrade your low-alloy welding game with a wire that works as hard as you do and provides the confidence that your welds are built to last.