Titanite is a high-strength aluminum casting alloy that compares in properties with heat-treated castings. It is a natural aging alloy. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Al-99. Producer or source: Aluminum Smelting and Refining Company Inc..