ALUMINUM 850.0 is an aluminum-tin-nickel-copper alloy for bearings. It is used principally in the form of permanent-mold castings which, because of their rapid solidification, are characterized by a fine, dense, fatigue-resistant structure. Solid bearings machined from permanent-mold castings of this alloy are used principally in the artificially aged T5 temper for heavy-duty engine bearings. In this field Aluminum 850.0 alloy has provided satisfactory performance under conditions of very high unit loading at medium speeds and temperatures. 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, forming, heat treating, machining, joining, and surface treatment. Filing Code: Al-252. Producer or source: Various aluminum companies.