PRODUCT INFORMATION Category: Aluminum Welding Wire & Electrodes Alloy: WW4043(R) Class: R4043 Description: This type of electrode can be used for welding of the following materials: 5454, 6052, 6063, 6082 and similar other silcon-aluminum alloys. In all cases an electrode that meets the test prescribed in A5.10 AWS specification can be used either as an electrode or a welding rod, but the reverse is not always true for a “R” classification aluminum “rod.” 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