Carbon

0.1 max

Hydrogen

0.015 max

Iron

0.3 max

Nitrogen

0.05 max

Oxygen

0.35 max

Titanium

Balance

Principal Design Features

This unalloyed grade offers slightly higher mechanicals when compared with Commercially Pure Grade 2 while displaying similar ductility and formability. Distributor availability of Grade 3 is a fact to be considered here, as it is less widely used than Grade 2. Beta Transus (F +/- 25) 1690.

Applications

Generally used where corrosion resistance is a major design factor in chemical production components, marine and airframe applications.

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.

Forming

May be hot or cold formed using hydropress, power brake, stretch or drop hammer methods. Similar in characteristics to 300 series stainless steels.

Welding

Beta Transus (F +/- 25) 1900

Heat Treatment

Not hardenable by heat treatment.

Forging

Roughing operations can begin at 907 C (1165 F),while finishing should be performed at 843 C(1550 F).

Hot Working

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

Cold Working

The cold work characteristics of this material is similar to that of a moderately tempered austenitic stainless steel. In multiple cold forming operations, intermediate stress relief is recommended to prevent tearing or other material damage. Post-work annealing is required to reattain optimum performance characteristics.

Annealing

Heat to 704 C (1300 F),hold for 2 hours follow by air cooling. For intermediate stress relieving, heat to 482-538 C(900-1000 f) and hold for 45 minutes.

Other Physical Props

Beta Transus (F +/- 25) 1690

Density (lb / cu. in.)

0.163

Specific Heat (Btu/lb/Deg F - [32-212 Deg F])

0.125

Electrical Resistivity (microhm-cm (at 68 Deg F))

56

Melting Point (Deg F)

3020

Thermal Conductivity

9.5

Modulus of Elasticity Tension

15

Reduction of Area

30

Form

Sheet

Condition

Test Specimen Annealed

Temper

70

Form

Sheet

Condition

Test Specimen Annealed

Temper

600

Tensile Strength

32

Yield Strength

20

Elongation

35

Reduction of Area

75

Form

Sheet

Condition

Test Specimen Annealed

Temper

800

Tensile Strength

29

Yield Strength

17

Elongation

18

Reduction of Area

75

Form

Sheet

Condition

Test Specimen Annealed

Temper

1000

Tensile Strength

22

Yield Strength

13

Elongation

33

Reduction of Area

75