242200947 - Dual Shield R-70 Ultra Flux Core Wire, E70T-1C, 3/32 in, 27.2 kg Coil

Power Through Dirty Steel with Dual Shield R-70 Ultra

When you are welding heavy structural steel, you don't always have the luxury of perfectly clean metal. That is where Dual Shield R-70 Ultra shines. This 3/32-inch flux-cored wire is built to eat through mill scale, rust, and surface oxides that would cause porosity with other wires. If you are working on railcars, heavy earth-moving equipment, or ship barges, this wire gives you the forgiveness you need to lay down sound welds without spending half your day grinding prep.

Designed for the flat and horizontal positions, the R-70 Ultra runs with a smooth, spray-like transfer using straight 100% CO2 gas. This means you get that deep, digging penetration characteristic of CO2, but with a flux formulation that keeps the arc stable and spatter manageable. The puddle is fluid and wets out nicely at the toes, creating a flat bead that blends smoothly into the base metal. This is especially helpful when you are stacking multiple passes on thick plate, as it reduces the risk of lack of fusion between layers.

Post-weld cleanup is a breeze. The slag coverage is complete, protecting your hot weld, but it cools to a brittle crust that often curls up and peels off on its own or with a light tap of a chipping hammer. This lets you move faster between passes and get the job done quicker. The "DH8" in its classification stands for low diffusible hydrogen, giving you peace of mind that your welds are resistant to cracking, even on thicker, restrained joints.

Packaged in a heavy-duty 27.2kg (approx. 60lb) coil, this wire is meant for serious production work. Whether you are in the shop fabricating beams or repairing heavy machinery, Dual Shield R-70 Ultra delivers the reliability and performance professional welders demand for heavy-duty carbon steel applications.