R4043 - WIRE - MIG (GMAW) – ALUMINUM

AWS A5.10

ER4043, commonly referred to as “AlSi5", has a 5% silicon and is the

 oldest and one of the most widely used aluminum welding wires for

 general purpose applications

Less sensitive to weld cracking than other aluminum alloys and the 

5% silicon content lowers the melting point, increases the fluidity of

 the weld puddle and leaves a bright shiny weld deposit.

ER4043 is commonly used for welding grades 6061, 6063, 5052, 3004, 

3003 and cast alloys 356.0, 357.0, 413.0, and 443.0 to name just a few.

Melting range is 1065 °F– 1170 °F, density is 0.097 lbs/in3 and post 

anodizing color is gray.