UNS No. A03840 is a general-purpose alloy for making intricate die castings. It has good castability and foundry characteristics good machinability and good strength. It is an excellent alloy for large thin-walled castings, and is suitable for castings requiring pressure tightness. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fracture toughness and fatigue. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Al-312. Producer or source: Various aluminum companies.

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