Cast Aluminum Alloy 4xx.x Series (Si-alloyed) General Information Category Information Material Cast aluminum alloy, 4xx.x series (Si-alloyed) General information – Overview These are the easiest of all Al alloys to cast, but often at the expense of mechanical properties. Strengths Excellent castability, high fluidity and feeding ability. Combines moderate strength with high elongation before rupture. … Continue reading Cast Aluminum Alloy 4xx.x Series (Si-alloyed)