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TITANIUM GRADE 7 COMPOSITION

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Titanium CP Grade 7

Related Metals:

RMI 0.2% Pd(tm)
Titan 995 Pb-Ti-grade 7(tm)
Commercially Pure Grade 7
Allvac 40 + Pd(tm)                                    

Specifications:

ASTM B265
ASTM B337
ASTM B338
ASTM B348
ASTM B381
ASTM F467
ASTM F468
UNS R52400

Chemistry Data

Carbon

0.1 max

Hydrogen

0.15 max

Iron

0.3 max

Nitrogen

0.03 max

Oxygen

0.25 max

Palladium

0.25 - 0.12

Titanium

Balance

General Information

Principal Design Features

The most corrosion resistant of all currently available titanium alloys, this grade is especially well suited to applications requiring resistance to general as well as localized crevice corrosion. Grade 7 also exhibits good strength, welding and forming


Applications

Generally found in chemical process and production equipment components.


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 coolan


Forming

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


Corrosion Resistance

Excellent in resisting general and localized crevice corrosion in a wide range of oxidizing and reducing environments.


Welding

Rated as "good" in terms of weldability.


Forging

Rough work can be performed at 900 C (1650 F), while finishing operations 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 an


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) 1675


Physical Data

Density (lb / cu. in.)

0.163

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

0.124

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

56

Melting Point (Deg F)

3020

Thermal Conductivity

9.5

Modulus of Elasticity Tension

14.9

Reduction of Area

25

Mechanical Data

Form

Sheet

Condition

Test Specimen Annealed

Temper

70

Tensile Strength

50

Yield Strength

40

Elongation

20

Reduction of Area

25


Form

Sheet

Condition

Test Specimen Annealed

Temper

600

Tensile Strength

30

Yield Strength

18

Elongation

37

Reduction of Area

75


Form

Sheet

Condition

Test Specimen Annealed

Temper

800

Tensile Strength

26

Yield Strength

15

Elongation

25

Reduction of Area

75


Form

Sheet

Condition

Test Specimen Annealed

Temper

1000

Tensile Strength

19

Yield Strength

11

Elongation

32

Reduction of Area

75

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