Timetal 551 is an improved-strength version of Timetal 550 alloy that retains good forging characteristics. The alpha-beta alloy has a nominal composition of Ti-4Al-4Mo-4Sn-0.5 Si, and it is used in gas turbine engine parts. This datasheet provides information on composition, physical properties, elasticity, tensile properties, and shear strength as well as creep. It also includes information on high temperature performance as well as forming and heat treating. Filing Code: TI-138. Producer or source: Timet.

TIMETAL 1100, a near alpha alloy, was developed for elevated temperature use around 1100 F (600 C). The alloy is to be used in the beta processed condition. The alloy offers the highest combination of strength, creep resistance, fracture toughness, and stability of any commercially available titanium alloy. This datasheet provides information on composition, physical properties, and tensile properties as well as creep and fatigue. It also includes information on high temperature performance as well as forming and heat treating. Filing Code: TI-104. Producer or source: Timet.

TIMETAL 21S (Ti-15%Mo-3%Nb-3%Al-0.2Si) offers the good cold formability and weldability of a beta strip alloy, but with greatly improved oxidation resistance and creep strength. Aerospace applications include engine exhaust plug and nozzle assemblies. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming and heat treating. Filing Code: TI-105. Producer or source: Titanium Metals Corporation (Timet). Originally published March 1993, revised October 1998.