Form

This specification covers a titanium alloy in the form of bars, wire, forgings, flash welded rings,and stock for forging or flash welded rings.

Application

These products have been used typically for parts to be rough machined prior to solution and precipitation heat treatment and for parts, such as pressure vessels and other aerospace structures, requiring high strength-to-weight ratios at or near room temperature, but usage is not limited to such applications.

Chemical components(%)

Physical requirements

The product, as received by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials

and from imperfections detrimental to usage of the product.

Condition

Bars

Hot finished with or without subsequent cold reduction, annealed, and descaled. Unless prohibited by purchaser, bars may be solution heat treated below the beta transus prior to annealing.

Wire

Cold drawn, annealed, and descaled

Forgings and Flash Welded Rings

Annealed and rough machined or descaled

Flash welded rings shall not be supplied unless specified or permitted on purchaser's part drawing. When supplied, rings shall be manufactured in accordance with AMS 7498

Stock for Forging, Flash Welded Rings, or Heading

As ordered by the forging, flash welded ring, or heading manufacturer.

Annealing

Bars, wire, forgings, and rings shall be annealed by heating to a temperature within the range 1300 to 1450 °F (704 to 788 °C), holding at the selected temperature within ±25°F(±14°C) for not less than one hour, and cooling at a rate which will produce product meeting the requirements of 3.5. Pyrometry shall be in accordance with AMS 2750.

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