S650429-008 - Hobart Fabco 105D2 3/32-inch E100T5-K3 Flux-Cored Wire Drum

Heavy-Duty Welding for High-Strength Steels

When your job calls for welding high-strength steels that need to withstand extreme loads and low temperatures, the Hobart Fabco 105D2 is the wire you reach for. This 3/32-inch flux-cored wire is a beast of a consumable, designed for laying down serious metal in the flat and horizontal positions. Unlike standard rutile wires that are easy to run but offer lower toughness, the Fabco 105D2 utilizes a basic slag system. This chemistry is what gives the weld deposit its incredible resistance to cracking and its high impact strength, even in freezing conditions. It is the go-to choice for welding T-1, HY-80, and other 100,000 psi yield steels often found in heavy equipment and crane manufacturing.

Running a 3/32-inch wire requires a power source with plenty of amperage and a feeder capable of handling the high torque, but the payoff is a massive deposition rate that can fill large grooves quickly. The wire runs on 100% CO2, which helps dig deep into the base metal, ensuring solid fusion at the root and sidewalls. While basic slag wires can sometimes have a slightly more convex bead profile and a slag that is a bit more adherent than rutile wires, the Fabco 105D2 is formulated to offer good puddle control and a stable arc transfer. The slag covers the weld completely to protect it during cooling, which is vital for maintaining the metallurgical properties of high-strength alloys.

This specific package is a 600 lb drum, which means you can weld for days without stopping to swap out a spool. For welders operating in boom-mounted setups or robotic cells, this is a huge advantage, keeping the arc on time high and frustration low. The wire feeds smoothly from the drum, provided you have the correct conduit and payoff setup, reducing the chances of tangles or feedability issues that can cause burn-backs.

Because this is a "T5" class wire, it is strictly for flat and horizontal fillets. It is not designed for out-of-position welding, so plan your fixturing accordingly. If you are fabricating heavy structural components, crane parts, or mining equipment frames, the Fabco 105D2 gives you the confidence that your welds will hold up under the most severe stress. It’s a professional-grade wire for professional-grade challenges, delivering the reliability you need when weld failure is simply not an option.