Aluminum Welding Wire 4043 Aluminum Silicon alloy is a highly popular choice for welding 6XXX base materials and heat treatable alloys. Known for its excellent crack resistance and superior penetration, this soft alloy outperforms other filler metals. Additionally, it can be utilized for specific brazing tasks and welding on high silicon casts such as A356. It is advisable to steer clear of using 4043 and other 4XXX filler metals for welding 5XXX materials.
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| Packaging Description:1lb spool |