ER4043 - MIG Aluminum Welding Wire - 1 Lb

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  • Regular price $27.10


  • ER4043, commonly referred to as "AlSi5", has 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.
  • The melting range is 1065 °F"“ 1170 °F, density is 0.097 lbs/in3, and the post anodizing color is gray.
  • 1 Lb of wire per Spool - Available diameters: 0.030", 0.035" and 0.045" - Available Spool Quantities 1, 2, 4 and 6-Pack. Select your choice from the menu.