Titanium 3-8-6-4-4 is stocked by 3 North American distributors and produced by 5 large mills. Distributors will offer small quantity buys while mills will generally only sell large quantities, with delivery times anywhere from 10 to 50 weeks depending on size and form required
This material is stocked primarily in Bar Products by 3 distributors but is also available to a lesser extent in Forging Products.
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Specifications
The following specifications cover Titanium 3-8-6-4-4
Property Results
Related Metals:
- 3Al-8V-6Cr-4Zr-4Mo
- Beta C Titanium
- Grade 19
Chemistry Data : [top]
Aluminum
|
|
3 - 4 |
Carbon
|
|
0.05 max |
Chromium
|
|
5.5 - 6.5 |
Iron
|
|
0.03 max |
Molybdenum
|
|
3.5 - 4.5 |
Nitrogen
|
|
0.03 max |
Oxygen
|
|
0.14 max |
Titanium
|
|
Balance |
Vanadium
|
|
7.5 - 8.5 |
Zirconium
|
|
3.5 - 4.5 |
Principal Design Features
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|
This beta alloy is similar in performance to 13-11-3, but is easier to melt. It is mainly available in bar and wire forms. Beta Transus (F +/- 25) 1460
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Applications
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Commonly employed in a variety of spring and fastener applications. Also found in tubulars in oil and gas wells.
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Machinability
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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.
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Forming
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May be hot or cold formed using hydropress, power brake, stretch or drop hammer methods. Similar in characteristics to 300 series stainless steels.
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Forging
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Rough work can be performed at 900 C (1650 F), while finishing operations should be performed at 843 C (1550 F).
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Hot Working
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Hot forming will reduce both the springback and required forming forces, and will increase the overall ductility of the material.
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Cold Working
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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.
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Annealing
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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.
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Other Physical Props
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Beta Transus (F +/- 25) 1460
|
|
Physical Data : [top]
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Density (lb / cu. in.)
|
0.174
|
Specific Heat (Btu/lb/Deg F - [32-212 Deg F])
|
0.125
|
Melting Point (Deg F)
|
3000
|
Modulus of Elasticity Tension
|
15
|
Mechanical Data : [top]
Form |
|
Plate |
Condition |
|
Heat treated 1600F 1 Hr AC+ 925 F 8 Hrs |
Temper |
|
70 |
Tensile Strength |
|
180 |
Yield Strength |
|
170 |
Elongation |
|
8 |
|
Form |
|
Sheet |
Condition |
|
Heat treated 1600F 1 Hr AC+ 925 F 8 Hrs |
Temper |
|
70 |
Tensile Strength |
|
180 |
Yield Strength |
|
170 |
Elongation |
|
6 |
|
Form |
|
Sheet |
Condition |
|
Solution Annealed & Aged |
Temper |
|
70 |
Tensile Strength |
|
170 |
Yield Strength |
|
160 |
Elongation |
|
6 |
|
Form |
|
Sheet |
Condition |
|
Test Specimen Annealed |
Temper |
|
70 |
|
Form |
|
Sheet |
Condition |
|
Test Specimen Annealed |
Temper |
|
600 |
|
Form |
|
Sheet |
Condition |
|
Test Specimen Annealed |
Temper |
|
800 |
Tensile Strength |
|
145 |
Yield Strength |
|
125 |
Elongation |
|
10 |
|
Form |
|
Sheet |
Condition |
|
Test Specimen Annealed |
Temper |
|
1000 |
Tensile Strength |
|
125 |
Yield Strength |
|
110 |
Videos :
MSO currently has no videos available for this grade.
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