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Titanium CP Grade 4 |
Related Metals: |
|
Allvac 70(tm)
Commercially Pure Grade 4
RMI 70(tm)
Timetal(r) 35A
Timetal(r) 35A(tm)
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Specifications: |
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AMS 4901
AMS 4921
ASTM B265
ASTM B348
ASTM B381
ASTM F467 (Ti-4)
ASTM F468 (4)
ASTM F67
ASTM F67 (4)
MIL F-83142
MIL T-81556
MIL T-9046
MIL T-9047
UNS R50700
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Chemistry Data |
Carbon |
|
0.1 max |
Hydrogen |
|
0.015 max |
Iron |
|
0.5 max |
Nitrogen |
|
0.05 max |
Oxygen |
|
0.4 max |
Titanium |
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Balance |
 |
General Information |
Principal Design Features |
Grade 4 displays the highest strength of all the unalloyed grades. It combines excellent corrosion resistance with good formability and weldability. While mill availability is not a problem, distributor availability is limited and should be a considerati |
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Applications |
Generally chosen for its corrosion resistance in a variety of chemical process equipment as well as marine and airframe applications. |
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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 |
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Forming |
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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Corrosion Resistance |
Good resistance in neutral to oxidizing environments, including chlorides. |
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Welding |
Rated as "good" in terms of weldability. |
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Heat Treatment |
Not hardenable by heat treatment. |
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Forging |
Roughing operations can begin at 935 C (1715 F),while finishing should be performed at 843 C(1550 F). |
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Hot Working |
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 |
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 |
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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. |
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Other Physical Props |
Beta Transus (F +/- 25) 1740 |
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Physical Data |
Density (lb / cu. in.) |
|
0.163 |
Specific Heat (Btu/lb/Deg F - [32-212 Deg F]) |
|
0.129 |
Electrical Resistivity (microhm-cm (at 68 Deg F)) |
|
60 |
Melting Point (Deg F) |
|
3020 |
Thermal Conductivity |
|
9.8 |
Modulus of Elasticity Tension |
|
15.1 |
Reduction of Area |
|
25 |
