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The 443 series of aluminum casting alloys have nominal silicon content of 5 wt% with various limits on iron, copper, manganese and magnesium. They are hypoeutectic AI-Si binary alloys with high ductility, very good corrosion resistance, good machinability, but only fair castability, and low strength. The alloys are used in castings where above average ductility coupled with excellent corrosion resistance is needed. This datasheet provides information on key alloy metallurgy, fabrication characteristics, processing effects on physical and mechanical properties, and application characteristics of these alloys.

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