Silafont-7 is an aluminum piston alloy for sand, permanent mold and die castings. It has high strength, particularly good hot-crack resistance and limited corrosion resistance. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on high temperature performance as well as casting, heat treating, machining, and joining. Filing Code: Al-150. Producer or source: Swiss Aluminium Ltd.