PRODUCT INFORMATION Category: Aluminum Welding Wire & Electrodes Alloy: WW1100 Class: ER1100 Description: Base materials which can be welded with this alloy are 1060, 1070, 1080, and 3003. This material can be used with the inert gas welding processes. It is essential that all Aluminum Alloys and welding wire are clean and free from contamination. Chemical Composition Si 0.95 max (including Iron) Fe 0.95 max (including Iron) Cu 0.05 - 0.20 Mn 0.05 max Zn 0.10 max Al 99.0 min