Body-Temperature Ni-Ti alloys are binary nickel-titanium alloys better known as shape memory or nitinol alloys. This is the second of several data sheets that cover these materials by austenite start temperature. This data sheet covers materials with an austenite start temperature of approximately 15 ± 5 deg C (59 ± 9 deg F). This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on forming and machining. Filing Code: Ni-654. Producer or source: Special Metals, Shape Memory Alloy Division.