ER4043 MIG Aluminum Welding Wire 1 Lb x 0.035'' (6 Spools)
Price tier: Mid-Range
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ER4043 aluminum welding wire (AlSi5) with 5% silicon; improves puddle fluidity and provides bright weld deposits. commonly used for 6061 welding; noted for better crack resistance than some alloys. one customer highlights good weld quality on 1/4" T6061 plate
Highlights
- ER4043 with 5% silicon
- improved puddle fluidity
- bright shiny weld deposit
Pros
- AlSi5 composition for improved fluidity
- bright shiny weld deposit
- widely used for general aluminum welding
- less weld cracking risk compared to some alloys
- works well on 6061 grades
Cons
- mixed reviews on overall wire quality
Best For
Features
- 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 fluidity of the weld puddle and leaves a bright shiny weld deposit.
- ER4043 is commonly used for welding grades 6061
- 6063
- 5052
