ATI 6-4 is an alpha-beta, Ti-6Al-4V alloy that is used in the annealed condition, or in the solution heat treated and aged condition. This high-strength alloy can be used at cryogenic temperatures up to about 425 °C (800 °F). Ti-6Al-4V is the most widely used titanium alloy. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ti-171. Producer or source: ATI.