Titanium 8 Mn

Annealing Procedure

For full anneal, hold at 680 C(1250 F) for 1 hour, furnace cool to 900 and air cool. For stress relief, heat to 490 C(900 F) and air cool.

Applications

Typical applications include aircraft structural and sheet components.

Cold Workability

The cold working characteristics of this material are similar to those of austenitic stainless steels. In multiple forming operations, intermediate stress relieving is recommended to offset the alloy's tendency to work harden. Post-work annealing is required to re-attain optimum performance characteristics.

Forgeability

Not a forging alloy.

Formability

This alloy may be hot or cold formed. Popular methods include hydropress, stretch or drop-hammer. This material responds similarly to 300 series stainless steels.

Hot Workability

Hot forming will reduce both the springback and required forming forces, and will increase the overall ductility of the material.

Machinability

As a family, titanium and its alloys have developed a mystique as a nightmare to machine. This is simply not the case. Experienced operators have compared its characteristics to those found in 316 stainless steel. Recommended practice includes high coolant flow(to offset the material's low thermal conductivity), slow speeds and relatively high feed rates. Tooling should be tungsten carbide designations C1-C4 or cobalt type high speed tools.

Other Physical Properties

Beta Transus (F +/- 25) 1475

Principle Design Features

This is a heat treatable alpha-beta alloy which combines excellent strength to weight ratio with good corrosion resistance and fabricability. It is available at the mill level in flat rolled forms including sheet, plate and strip. Beta Transus (F +/- 25) 1475.

Weldability

Not recommended for welding.