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Ti-5-5-2-3 / Ti-5-5-8-3 / Ti-15-3-3-3 |
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| Ti-5-5-2-3(Ti-5Mo-5V-2Cr-3Al) |
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Relative to Ti-10V-2Fe-3Al
Characterized by cold formable and weldable high strength Ti alloy,
in high area reduction 朵 and high fracture toughness K1C.
Typical property for 12mm rod (aged state) |
| Aged Condition |
考b(MPa) |
汛5(%) |
朵(%) |
| A |
1533 |
8.8 |
35 |
| B |
1410 |
13.5 |
61 |
| C |
1385 |
13.5 |
61 |
| D |
1228 |
15.5 |
69 |
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| Property for 60 mm bar (aged state)
|
| Aged Condition |
考b(MPa) |
考0.2(MPa) |
汛5(%) |
朵 (%) |
E(GPa) |
K1C(MPa) |
| I |
1350 |
1270 |
10.0 |
22 |
116 |
57.3 |
| II |
1300 |
1220 |
9.8 |
23 |
113 |
67.9 |
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Bars for deep well strings in the petroleum
industry |
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Rods diameter 8-20 mm for high strength
bolts |
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Near net shape forging application |
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Thick wall vessel |
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Ultra high velocity centrifugal rotor |
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| Ti-5-5-8-3(Ti-5Mo-5V-8Cr-3Al) |
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Relative to ASTM Gr. 20,
Ti-3-8-6-4-4
Characterized by cold formable and weldable high strength Ti alloy.
Property for 1 - 3 mm sheets |
| Heat Treatment |
考b(MPa) |
汛5(%) |
| Solution Treated (ST) |
980 min. |
20 min. |
| ST + Aged |
1300 min. |
8 min. |
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| Property for 0.25 mm foil |
| Heat Treatment |
考b(MPa) |
汛5(%) |
| Annealed |
1000 |
15 |
| Aged Condition 1 |
1400 |
4 |
| Aged Condition 2 |
1280 |
9 |
| Aged Condition 3 |
1230 |
18 |
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Bars for deep well strings in the petroleum
industry |
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Sheets thickness between 3.0-4.0mm for
knifes used in the sea (hardness min. HRC40 in aged state) |
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Sheets for high strength application
in aerospace and airspace industry |
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Ultra high velocity centrifugal rotor |
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| Ti-15-3-3-3(Ti-15V-3Cr-3Al-3Sn) |
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This specification covers
a titanium alloy in the form of sheet and strip.
Composition:(WT %) |
| Element |
V |
Cr |
Sn |
Al |
Fe |
O |
C |
N |
H |
Residual Elements, each |
Residual elements, total |
Ti |
| Min. |
14 |
2.5 |
2.5 |
2.5 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
remainder |
| Max. |
16 |
3.5 |
3.5 |
3.5 |
0.25 |
0.13 |
0.05 |
0.05 (500 ppm) |
0.015 (150 ppm) |
0.1 |
0.4 |
| Condition |
Tensile Strength (MPa) |
Yield Strength at 0.2%Offset (MPa) |
Elongation in 50mm |
| As Solution Heat Treated |
703-945 |
689-869 |
12% min. |
| After Precipitation Heat Treatment |
1000 |
965 |
7% |
| After heating to 482 ⊥ ㊣ 6, holding at heat for
16 hours ㊣0.5, and cooling in air |
1241 |
1172 |
5% |
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