HARVEY HA 5158 is an alpha-beta, heat treatable titanium alloy recommended for elevated temperature applications. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ti-57. Producer or source: Harvey Aluminum Company.