ER5356 is a 5% magnesium aluminum filler metal, available in spools and cut length for both MIG and TIG applications. ER5356 has increased levels of Mg, Ti and Mn along with the addition of chrome and a slight reduction in silicon. These changes work together to increase its corrosion resistance, making it the best aluminum for use in or near saltwater.ER5356 is commonly used on 5050, 5052, 5083, 5356, 5454 and 5456 and is the second most widely used aluminum filler metal. ER5356 has a melting range of 1060-1175F, a density of 0.96 lbs/ci and a typical tensile strength of 38,000 psi. Its post anodizing colour is white.