ER4043 is an AlSi5 aluminum TIG filler with approximately 5% silicon, improving weld-pool fluidity and reducing crack sensitivity on suitable wrought and cast aluminum.
Materials and Applications
- 3003, 3004, 5052, 6061, and 6063 aluminum
- Compatible aluminum castings, including 355 and 356
- General aluminum fabrication, repair, and compatible wrought or cast components
Why ER4043
ER4043 contains approximately 5% silicon, which improves weld-pool fluidity and reduces crack sensitivity when matched to a suitable aluminum base metal and welding procedure.
Key Specifications
- Classification: ER4043 / AlSi5
- Process: TIG
- Silicon content: Approximately 5%
- Package weight: 5 lb (2.3 kg)
- Diameter options: 1/16" (1.6 mm), 3/32" (2.4 mm), and 1/8" (3.2 mm)
- Shielding gas: Argon, Helium, or an Argon / Helium mixture