ER4943 aluminum TIG filler rod is the upgraded alternative to 4043, delivering up to 25% higher tensile strength while maintaining the same smooth weldability. Designed for 6xxx series alloys like 6061, it offers excellent crack resistance and cleaner welds, making it ideal for aerospace, automotive, and high-performance fabrication.
Applications
✅ Used in place of ER4043 when more weld strength is needed
✅ 5.5% Silicon additive
✅ Flows as easily as ER4043
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