PRODUCT INFORMATION Category: Aluminum Welding Wire & Electrodes Alloy: WW5556 Class: ER5556 Description: This material can be used to weld base material types 5454 and 5456. All inert gas processes, electron bead and oxyfuel gas welding processes can be used. It is essential that all aluminum alloys and welding filler wires are clean and free from contamination. Chemical Composition Si 0.25 max Fe 0.40 max Cu 0.10 max Mn 0.50 -1.0 Mg 4.7-5.5 Cr 0.05-0.20 Zn 0.25 max Ti 0.05-0.20 Al Remainder