Titanium 5-5-2-2

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Cold Workability

The cold working characteristics of this alloy are similar to those found in 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 recommended to reattain maximum performance characteristics.

Formability

This alloy can be hot or cold formed and will exhibit characteristics equivalent to those found in a 1/8 to 1/4 hard austenitic stainless steel.

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.

Known Forms

Billet

Billet

Coil

Coil

Disc

Disc

Flat Bar

Flat Bar

Foil

Foil

Hollow Bar

Hollow Bar

Ingot

Ingot

Pipe

Pipe

Plate

Plate

Ring

Ring

Rod

Rod

Round Bar

Round Bar

Round Tube

Round Tube

Sheet

Sheet

Square Bar

Square Bar

Strip

Strip

Additional Data

Chemical Elements

Aluminum4.5 - 5.5
Carbon0.05 max
Hydrogen0.0125 max
Iron0.15 max
Molybdenum1.75 - 2.25
Nitrogen0.03 max
Oxygen0.13 max
Silicon0.2 - 0.3
Tin4.5 - 5.5
TitaniumBalance
Zirconium1.75 - 2.25

Physical Properties

Density: 0.163lb/in³Density

Thermal Expansion

ConditionMinMaxExpansion Coefficient
Annealed32 °F1500 °F5.7 μin/in·°F
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