Aluminum electrode is an aluminum alloy core and coating the salt base flux. Excellent crack resistance and the weld has certain mechanical properties. It is not easy to form cracks for aluminum alloys. DC power supply is used, the electrode is connected directly, and the short Arc is used for quick welding. Used in aluminum plate, aluminum silicon castings, general aluminum alloy and forged aluminum alloy and forged aluminum, hard aluminum welding, not suitable for welding aluminum magnesium alloy.
| Alloy | Standard | Chemical Composition(%) | Application |
| E4043 | AWS A5.3 | Al:Balance Si:4.5-6.0 Fe:<0.8 Cu:< 0.3 Mn:<0.05 Mg:<0.05 Zn:<0.1 Ti:<0.2 Other:≤0.15 | It is suitable for welding and repairing aluminum alloy components and molds, addressing casting defects, and welding aluminum containers. |
| E4047 | AWS A5.3 | Al:Balance Si:11-13 Fe:0.8 Cu:0.3 Mn:0.15 Mg:0.1 Zn:0.2 | It is suitable for aluminum castings repair, automotive parts, thick plate welding, slag over slag technique etc. |
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