PRODUCT INFORMATION Category: Aluminum Welding Wire & Electrodes Alloy: WW4043(ER) Class: ER4043 Description: ER4043 aluminum filler materials are silicon-aluminum types for welding of the following: 5154, 6052, 6053, 6082 and similar other silicon-aluminum alloys. This material can be used with the inert gas welding processes. It is essential that all aluminum alloys and welding filler wires are clean and free from contamination. Chemical Composition Si 4.5 - 6.0 Fe 0.8 max Cu 0.30 max Mn 0.05 max Mg 0.05 max Zn 0.10 max Ti 0.20 max Al Remainder Other 0.15 max