- Mainpage
- Directory
- Titan
- Titan according to GOST
VT22 titanium pipe, wire
Titanium alloy VT22 brand belongs to the transitional type which has a minimum durability of more than 960 MPa. It was developed in 1965 in VIAM. It was later proposed modification of this alloy — ВТ22ч, ВТ22И, ВТ22М.
Production and advantages of circle and rod VT22
| Prefabricated | Heat treatment | Thickness (mm) | Strength (MPa) | KCU j/cm3 | Plasticity of δ% |
|---|---|---|---|---|---|
| Typical properties of VT22 | Annealing | In section до200 mm | 1080 — 1230 | Более25 | More than 7% |
| Bars | Annealing | 25 — 60 days. 65 — 100 D 101 — 130 P 140 — 250 Tonnes |
1070 — 1226 | Более30 | More than 10% |
| 1100 — 1300 | Более30 | More than 8% | |||
| 1100 — 1300 | Более30 | More than 8% | |||
| 1100 — 1300 | Более30 | More than 8% | |||
| Bars | Annealing 750° +500° for 16 hours | 20 mm | 1375 — 1520 | 30 — 60 | 7 — 10% |
| Quenching + aging | more than40 mm | 1200 — 1300 | --- | More than 6% | |
| Annealing of 700° to 300° | to 100 mm | 1080 — 1225 | 30 — 60 | 8 — 16% | |
| Bars | Annealing 750° 0.5 hours. to 350° In |
Ø20mm | 1147 | 34 | 16% |
Annealing 750° for 1 h. the to 350° In |
Ø30 mm | 1073 — 1092 | 37 — 44 | 18 — 20% | |
| Annealing | Ø50 mm | 1140 | 39 | 16% | |
| Bars | Annealing of 780° +400° for 16 hours Quenching + aging Annealing 750° +aging 500° for 10 h Hardening of 700−750° +aging 450−500° |
14 mm | 1860 | --- | A 3.5% |
| 1680 | --- | 10% | |||
| 1323 — 1421 | --- | 7 — 11 | |||
More 1274 — 1470 |
--- | More than 8 — 10% | |||
| Forged rods | Annealing of 780° 1 h to 400°, In |
14x14 | 1127 | --- | 16.7% of |
| Bars | 840° 1 HR to 750°, 3 h +620° 4 h, | 60 — 100 | 1108 — 1133 | 28 — 42 | With 12.4 — 16% |
| Bars | Quenching + aging | 1370 — 1520 | 5% | --- | |
| Bars | Annealing | 1080 — 1230 | More than 10% | More than 30 | |
| Bars | Hardening 880° | 1058 — 1100 | 10 — 13 | ||
| Bars | Isothermal annealing | 1250 | 13% | --- | |
| Bars | Annealing 700 — 750° + aging 450 — 500°C | More than 1,300 | --- | ||
| Bars | Annealing 750° +480° 16 h | 1490 | 11% | 17,4 | |
P is transverse the cutting direction of the samples; — high-rise, D — longitudinal, T — Tangenziale.
Heat resistance is characterized by the highest voltage — creep strength, under whose influence the material is deformed by a given amount at a given temperature.
| The heat resistance of VT22 titanium rod | ||||
|---|---|---|---|---|
| Rod | Heat treatment | The creep strength of (0.2/100) | t°C | |
| VT22 | Annealing | 764 | 300° | |
| Annealing | 402 | 350° | ||
| VT22 | Quenching+aging | 890 | 250° | |
| Quenching+aging | 880 | 300° | ||
Long-term strength is the maximum stress, destroys the material after a certain time at a given temperature. Note: the longer the load and the higher the temperature, the tensile strength is less.
| Long-term strength of VT22 rod rod | ||||||||
|---|---|---|---|---|---|---|---|---|
| Prefabricated | Heat treatment | t°C | Long-term strength (MPa) | |||||
| 100 hours | ||||||||
Rod 25 mm |
Annealing | 300° | 880 | |||||
| 350° | 800 | |||||||
| 400° | 650 | |||||||
Rod 80 mm |
Aging and annealing | 250° | 980 | |||||
| 300° | 950 | |||||||
| 350° | 850 | |||||||
| Prefabricated | Heat treatment | Long-term strength (MPa) | t°C | |||||
| 100 hours | ||||||||
Rod 25 mm |
Annealing | 880 | 300° | |||||
| 800 | 350° | |||||||
| 650 | 400° | |||||||
Rod 80 mm |
Aging and annealing | 980 | 250° | |||||
| 950 | 300° | |||||||
| 850 | 350° | |||||||
The fatigue resistance of VT22 rod
| Rod | Thickness (mm) | Heat treatment | R | Loading | The limit of endurance 10.000.000 |
|---|---|---|---|---|---|
| VT22 | 25 | Annealing | — 1 | Symmetrical loading | More 519 MPa |
| 100 | — 1 | Cantilever bending in one plane | 505 MPa | ||
| 20 | — 1 | 580 MPa |
| The durability of the rod VT22 during the tests on repeated static loads (low cycle fatigue). | ||||
|---|---|---|---|---|
| Prefabricated | Thickness | Heat treatment | Strength (MPa) | N x 1000 |
| Bars | 80 mm | Annealing | 8 | 1200 |
| Fine | 11 | 1225 | ||
| Polyaninova | 9,5 | 1225 | ||
Use
Semifinished products of VT22 alloy is indispensable in the manufacture of fasteners of the reinforcement, the power of large parts of the fuselage, wing, landing gear, parts of a control system of a cargo aircraft (Il-76, Il-86, «Ruslan», «Mriya»), GTE parts.
Buy at best price
A large assortment of articles of VT22 alloy grades in stock LLC «AVEK global» is able to meet wholesale and retail buyers. The price is formed taking into account technological features of production without the inclusion of additional costs. All products are certified, if required, is an additional control. The timing of orders is minimal. In touch — our experienced managers who will advise you on any questions. For wholesale orders enjoy significant discounts.