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. Mainly applied in the industry of chemical, mold, furniture, containers, etc. Main characteristics 1. Low welding costs. 2. Excellent fluidity. 3. Outstanding permeability 4. High stability 5. Easy to operate All-position welding 6. Wide applicability Chem contents:.... Si: <= 4.5% -6.0% Mg: <= 0.05% Fe: <= 0.80% Cu: <= 0.30 % Zn: <= 0.10% Mn: <= 0.05% Al: Bal