4043 (commonly referred to as AlSi5) is a 5% silicon aluminum filler
metal that is available in Spools or cut lengths for MIG or TIG welding processes.
4043 aluminum filler metal is recommended for welding 3003, 3004, 5052,
6061, 6063 and casting alloys 43, 355, 356, and 214.
The melting range is 1065-1170F with a density of .097 lbs./cu.in.
The average tensile strength is 27,000 psi, average yield strength of 18,000 psi
and the post anodizing color is gray