ER4043 - MIG Aluminum Welding Wire - 1 Lb x 0.045" (2 SPOOLS)

Are you tired of using welding wires that are sensitive to cracking and leave a dull, rough finish? Look no further than ER4043, commonly referred to as "AlSi5".

This wire is the oldest and most widely used aluminum welding wire for general purpose applications.

With its 5% silicon content, it has a lower melting point and increased fluidity, resulting in a bright shiny weld deposit.

Plus, it's less sensitive to weld cracking than other aluminum alloys.

ER4043 is versatile and can be used for welding grades 6061, 6063, 5052, 3004, 3003, and cast alloys 356.0, 357.0, 413.0, and 443.0.

Don't settle for a subpar welding wire - choose ER4043 for a professional-quality finish every time.