... (AM50A,AZ91D,AE42, etc.), Mg powder & Mg Casting, etc.The magnesium metal 99.9% is a fairly strong, silvery-white, light-weight ... (galvanic) anode to protect underground tanks, pipelines, buries structures, and water heaters. Magnesium Metal(Ingot)Spec Chemical composition %MG≥ othersFeSiNiCuAlMnCTiPbZnOther each impurityMg999999.990 ...