ALLOY 4043 | AISi5


Automotive – Reducing vehicle weight is critical to improving fuel efficiency. The world’s leading automotive manufacturers understand this better than anyone and are driving the change as they design consumer vehicles for tomorrow’s roadways.

Automotive manufacturers world-wide have to come to Indalco in particular for our experience in this industry segment. We have worked, and continue to work with the world’s largest and most reputable auto manufacturers in order to help them apply aluminum to the design and manufacture of their vehicles.

In particular, the Gem-Pak™ was designed with automotive requirements in mind, in order to improve wire feeding reliability, and provide less downtime.

Aerospace – One of the most demanding applications in the world, the Aerospace industry demands the highest quality, reliability and consistency. At Indalco, we pride ourselves on being able to meet the industry standards day after day.

The fact that we are the only fully vertically integrated manufacturer of aluminum welding products in the world means that we are a reliable source for specialty alloys such as 2319 commonly used in Aerospace and Aviation.



  • Designed for welding heat-treatable base alloys and including 6XXX series alloys
  • Lower melting point and more fluidity than 5XXX series filler alloys
  • Low sensitivity to weld cracking with 6XXX series base alloys
  • General purpose filler alloy and one of the most widely used welding and brazing alloys
  • Excellent when aesthetics are of importance
  • Not recommended for material to be anodized


  • 100% Argon
  • Argon/Helium Mixtures
  • Flow Rate: 30-50 CFH (14.2 – 23.6 L/min)