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We are Manufacturing, Exporting and Supplying in Top Grade Aluminum Welding Wires from China. Nuevo Leon, Mexico. ER4043 is a general-purpose type aluminum welding wire which contains 5% silicon additives, resulting in outstanding fluidity and excellent permeability. It is recommended to weld various grades of aluminum alloys which contain at most 2% alloy elements or 7% Si such as 2014, 3003, 3004, 5052, 6060, 6061, 6063, 6101, etc.
Characteristics:
 1. Low welding costs. 
 2. Excellent fluidity.
 3. Outstanding permeability
 4. High stability .
 5. Easy to operate. All-position welding. 
 6. Wide applicability.
Chemical composition(%)
Si 4.5%-6.0%
Mg 0.05%

Fe 0.80%
Cu 0.30%
Zn 0.10%
Mn 0.15%
Ti 0.2%
Be 0.0003%

other 0.15%
Al Bal
Application
1) Mainly Used In Electrician, Chemical, Sports Equipment, Furniture And Bicycle And Such Other Aluminum Alloy Profile Weld.
2) Low Carbon Steel And Low Alloy Steel, Rolling Stock, Container, Engineering Machinery, And Pressure Container.