-Premium quality, all position, flux-cored (gasless) welding wire is for general purpose MIG welding of mild steel. -E71T-GS is a self-shielded flux cored wire for lap and fillet welds of mild and medium tensile steels not exceeding 510MPa. -All-positional welding of single pass automatic and semi-automatic fabrication. -This Flux Cored Welder Wire can be applied for aluminized steel and galvanized steel from 1.2 to 5.0mm. -Smooth arc action, full slag coverage, easy slag removal. -Ideal for general fabrication & structural work requiring no impact properties -Can be welded using DCEN polarity -Suitable for a variety of applications such as prefab, building fabrication, tanks, ornamental iron, farm implement repairs, and general fabrication -This wire is one of the highest quality Gasless Wires on the market No Shield Gas Required / polarity DCEN