BOHNALITE J is a high-copper aluminum alloy suitable for permanent mold and sand casting. It responds to heat treatment to produce high mechanical properties. It retains its strength well and has other excellent properties at elevated temperatures. Its bearing properties are also good. This datasheet provides information on composition, physical properties, hardness, tensile properties, and compressive and shear strength as well as fatigue. It also includes information on high temperature performance as well as heat treating, machining, and joining. Filing Code: Al-12. Producer or source: Bohn Aluminum & Brass Corporation.