Maxpower Maxal®, Hobart® 535603504 Aluminum Welding Wire, Diameter: 0.035 Inch, Current Type: DC+, Amperage: 100 - 180 amp, Package: 1 lb Spool, AWS Class: AWS A5.01: Class S1, Schedule F, AWS A5.10, White Anodized, Welding Process: MIG (GMAW And SAW), Weld Metal Composition: 0.25% Silicon (Si), 0.4% Iron (Fe), 0.1% Copper (Cu), 0.05-0.2% Manganese (Mn), 0.1% Zinc (Zn), 0.06-0.2% Titanium (Ti), <0.0003% Beryllium (Be), 4.5-5.5% Magnesium (Mg), 0.05-0.2% Chromium (Cr), 0.05% Each, 0.15% Total, Melting Range: 1060 - 1175 deg F