ALUMINUM 43 is a 5% silicon-aluminum casting alloy for intricate design and thin wall castings. It has high resistance to corrosion and is pressure-tight. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as fatigue. It also includes information on high temperature performance and corrosion resistance as well as casting, machining, and joining. Filing Code: Al-55. Producer or source: Various aluminum companies.