030 5356 MIG WELDING WIRE 20 1lb SPOOLS!! EXCELLENT DEAL ON A TOP QUALITY WIRE MADE IN CANADA! Description and Application Inweld 5356 is a 5% magnesiumalloyed aluminum welding wire. A great general purpose filler alloy, designed for the welding of 5XXX series alloys, when 276 Mpa (40 ksi) tensile strength is not required. Excellent color match after anodizing. Inweld 5356 offers much better corrosion resistance when exposed to salt water. Average tensile strength as welded is 38,000 psi.