71333B - Hobart Megafil 713R Seamless Flux-Cored Wire 1.6mm 35lb

Master Heavy Fabrication with Hobart Megafil 713R 1/16" Wire

Elevate your welding projects with the Hobart Megafil 713R, a 1/16" (1.6mm) gas-shielded flux-cored wire delivered in a 35lb spool. This wire represents the pinnacle of flux-cored technology, utilizing a seamless tubular design that offers distinct advantages over conventional folded wires. The seamless construction ensures that the flux core is completely encapsulated and protected from the environment, guaranteeing extremely low hydrogen content (H4 designation). For the professional welder, this translates to superior resistance to cold cracking and porosity, providing peace of mind when working on critical structural joints or pressure vessels.

The Megafil 713R is a rutile-based wire designed for all-position welding. Its fast-freezing slag supports the weld puddle effectively against gravity, making vertical and overhead welds easier to control while maintaining a flat, smooth bead profile. The arc characteristics are superb—stable, soft, and with very low spatter generation—which improves welder comfort and visibility during long shifts. It is formulated to perform exceptionally well on carbon steels, delivering high deposition rates that outpace solid wires and stick electrodes, thereby boosting productivity on heavy-gauge materials.

Versatility is a hallmark of the 713R. It meets AWS classifications E71T-1M H4 and E71T-1C H4, meaning it can be run with either mixed gas (75-80% Argon / Balance CO2) for a smoother arc and reduced fume, or straight 100% CO2 for deeper penetration and cost savings. The copper-coated surface not only prevents rust on the wire but also ensures optimal electrical conductivity, resulting in stable arc starts and extended contact tip life. Whether you are tackling general fabrication, shipbuilding, or pipeline construction, the Hobart Megafil 713R provides the reliability and performance required to produce code-quality welds time after time.