Alloys R-A356.0, ER4010 and R4010 include aluminum-silicon-magnesium Almigweld and Altigweld filler wires with low iron content to weld alloys 356.0 (Alloy Digest Al-223, May 1976) and A356.0 (Alloy Digest Al-258, June 1985). This datasheet provides information on composition and physical properties. It also includes information on joining. Filing Code: Al-323. Producer or source: AlcoTec Wire Corporation.