Titanium and Titanium Alloy Grades, Characteristics and Applications
Ti-6Al-4V
It is a heat-treated, strengthened titanium alloy that has good weldability in sheet formability and forging properties. Used to make jet engine compressor blades, impellers, etc. Others such as landing gear wheels and structural parts, fasteners, brackets, aircraft accessories, frames, purlin structure, and pipes are widely used.
Ti-5Al-2.5Sn
Forging has good resistance to cracks, good moldability, good weldability, and no heat treatment. For transmission gearbox housings, jet engine housings and guide vane covers, pipe constructions, etc.
Ti-8Al-1Mo-1V
Formability and resistance to cracking during forging are acceptable. Weldability is good, but it cannot be strengthened by heat treatment. Making jet engine blades, impellers and housings, gyroscopic guide vane covers, nozzles, inner skins and frames, etc.
Ti-6Al-6V-2Sn
Titanium alloys that are heat-treatable and strengthened have good resistance to cracking during forging, but have poor weldability. For manufacturing a fastener, the control air inlet guide means, the test structure.
Ti-13V-11Cr-3Al
It is a heat-treatable titanium alloy with good formability. When forging, it has certain anti-crack ability, and its weldability is acceptable. It can be used as structural forgings. plate purlin structure, skin, frame, bracket, aircraft accessories, fasteners.
Ti-2.25Al-11Sn-5Zr-1Mo-0.2Si
It is a heat-treatable and toughened titanium alloy with good resistance to cracking during forging. Used for manufacturing jet engine blades, impellers, landing gear wheels, aircraft skeleton, fasteners, etc.
Ti-6Al-2Sn-4Zr-2Mo
Welding is good moldability, good resistance to cracking during forging ability, but not heat strengthened. For the manufacture of compressor blades, impellers, landing gear wheels, spacer compressor chassis assembly, aircraft skeleton, skin components and so on.
Ti-4Al-3Mo-1V
It is a heat-treatable titanium alloy with good forging properties and moldability.
Used to make aircraft skeleton components.
IMI125, IMI130, IMI160
Industrial pure titanium has excellent corrosion resistance, high specific strength, good fatigue limit, good forging properties, and can be forged, formed and welded by ordinary methods. Can be made into plates, rods, wire. Used in aerospace, medical, chemical, etc., such as exhaust pipes, firewalls, heated skin, and parts requiring good plasticity and resistance to corrosion.
IMI317
It belongs to α-type titanium alloy and can be welded. It has good oxidation resistance, strength and high temperature stability at 315~593°C. It can produce forgings and plate parts, such as aero-engine compressor blades, shells, and brackets.
IMI315
It belongs to α+β-type titanium alloy and can be heat-strengthened and used for aero-engine compressor disks and blades and missile components.
IMI318
α + β type alloy, forging and comprehensive performance is good, is commonly used in various countries, titanium alloys, used in aircraft engine compressor plate and blades and other components.
IMI550
α + β titanium alloy, easy to forge, good room temperature strength, high creep resistance (below 400 °C), high durability, widely used in the manufacture of engines and wing slides, power control device shell and so on.
IMI551
IMI551
It belongs to α+β type titanium alloy high strength titanium alloy. It has high strength and high creep limit (below 400°C). Good forging properties, used to make aircraft components such as landing gear, mounts, gas turbine components, Can also be used for general engineering and chemical, turbine blades, compressor parts and other high-speed rotating parts.
IMI685
It is a type of α+β type titanium alloy with high specific strength at room temperature and medium temperature. It has good creep resistance at high temperature (520°C), good high temperature stability, weldability, easy processing, and high operating temperature.
Used to make aero engine parts.
IMI684
It belongs to α+β type titanium alloy, which has good weldability and creep resistance (below 535°C) and excellent thermal stability. This alloy is similar in performance to IMI685 and has the same purpose. For the production of high pressure compressor disks and blades.
T-A6V6E2
Mainly used for making gas turbine engines and aircraft missile structural parts.
T-TU2
It has weldability and formability in the as-quenched state, and is used below 350°C.
T-T6Zr4DE
Solderable, for jet engine blades and discs
Ti-6246
Be made gas turbine disk, fan blades and structural parts of aircraft and missiles.
T-V13CA
For the production of 250 °C below the frame, honeycomb structure and so on.
T-A6Z5W
Weldable high-strength titanium alloy has good creep resistance at 520 ℃.
T-A6ZD
For the production of jet engine components (such as blades, disc, etc.).
T-A4DE2
The alloy has high strength and creep resistance below 400°C.
3.7114
Solderable, acceptable moldability, medium strength.
3.7124
Plasticity, weldability and high temperature strength are similar to those of industrial pure titanium, and are used for parts and resists up to 350°C.
3.7134
Low density, high elastic modulus, used in the production of compressor discs, vanes, etc. working below 450°C are important materials for the aviation industry.
3.7144
Used to make aeroengine rotors and blades that work below 450°C.
3.7154
The alloy has high strength and good creep resistance and can be welded.
Used for long-term working parts below 500°C, such as aero-engine compressor parts.
3.7164
Good overall performance, used for high stress mechanical parts working below 350°C.
3.7174
It is a high-strength titanium alloy that can be heat-treated for forging and has good forging properties.
3.7184
Used to make aero engine components that operate below 400°C, such as compressor disks, vanes, etc.
LT32
The alloy has high strength and hardenability. It is used to make aircraft skeletons and missile forgings that work below 427°C.
LT41
Is a heat treatable titanium alloy, It has excellent formability and is used to make aircraft skeletons, skins, honeycomb structures, pressure vessels, and high-strength fasteners.
Titanium and titanium alloy mechanical properties
It is a heat-treated, strengthened titanium alloy that has good weldability in sheet formability and forging properties. Used to make jet engine compressor blades, impellers, etc. Others such as landing gear wheels and structural parts, fasteners, brackets, aircraft accessories, frames, purlin structure, and pipes are widely used.
Ti-5Al-2.5Sn
Forging has good resistance to cracks, good moldability, good weldability, and no heat treatment. For transmission gearbox housings, jet engine housings and guide vane covers, pipe constructions, etc.
Ti-8Al-1Mo-1V
Formability and resistance to cracking during forging are acceptable. Weldability is good, but it cannot be strengthened by heat treatment. Making jet engine blades, impellers and housings, gyroscopic guide vane covers, nozzles, inner skins and frames, etc.
Ti-6Al-6V-2Sn
Titanium alloys that are heat-treatable and strengthened have good resistance to cracking during forging, but have poor weldability. For manufacturing a fastener, the control air inlet guide means, the test structure.
Ti-13V-11Cr-3Al
It is a heat-treatable titanium alloy with good formability. When forging, it has certain anti-crack ability, and its weldability is acceptable. It can be used as structural forgings. plate purlin structure, skin, frame, bracket, aircraft accessories, fasteners.
Ti-2.25Al-11Sn-5Zr-1Mo-0.2Si
It is a heat-treatable and toughened titanium alloy with good resistance to cracking during forging. Used for manufacturing jet engine blades, impellers, landing gear wheels, aircraft skeleton, fasteners, etc.
Ti-6Al-2Sn-4Zr-2Mo
Welding is good moldability, good resistance to cracking during forging ability, but not heat strengthened. For the manufacture of compressor blades, impellers, landing gear wheels, spacer compressor chassis assembly, aircraft skeleton, skin components and so on.
Ti-4Al-3Mo-1V
It is a heat-treatable titanium alloy with good forging properties and moldability.
Used to make aircraft skeleton components.
IMI125, IMI130, IMI160
Industrial pure titanium has excellent corrosion resistance, high specific strength, good fatigue limit, good forging properties, and can be forged, formed and welded by ordinary methods. Can be made into plates, rods, wire. Used in aerospace, medical, chemical, etc., such as exhaust pipes, firewalls, heated skin, and parts requiring good plasticity and resistance to corrosion.
IMI317
It belongs to α-type titanium alloy and can be welded. It has good oxidation resistance, strength and high temperature stability at 315~593°C. It can produce forgings and plate parts, such as aero-engine compressor blades, shells, and brackets.
IMI315
It belongs to α+β-type titanium alloy and can be heat-strengthened and used for aero-engine compressor disks and blades and missile components.
IMI318
α + β type alloy, forging and comprehensive performance is good, is commonly used in various countries, titanium alloys, used in aircraft engine compressor plate and blades and other components.
IMI550
α + β titanium alloy, easy to forge, good room temperature strength, high creep resistance (below 400 °C), high durability, widely used in the manufacture of engines and wing slides, power control device shell and so on.
IMI551
IMI551
It belongs to α+β type titanium alloy high strength titanium alloy. It has high strength and high creep limit (below 400°C). Good forging properties, used to make aircraft components such as landing gear, mounts, gas turbine components, Can also be used for general engineering and chemical, turbine blades, compressor parts and other high-speed rotating parts.
IMI685
It is a type of α+β type titanium alloy with high specific strength at room temperature and medium temperature. It has good creep resistance at high temperature (520°C), good high temperature stability, weldability, easy processing, and high operating temperature.
Used to make aero engine parts.
IMI684
It belongs to α+β type titanium alloy, which has good weldability and creep resistance (below 535°C) and excellent thermal stability. This alloy is similar in performance to IMI685 and has the same purpose. For the production of high pressure compressor disks and blades.
T-A6V6E2
Mainly used for making gas turbine engines and aircraft missile structural parts.
T-TU2
It has weldability and formability in the as-quenched state, and is used below 350°C.
T-T6Zr4DE
Solderable, for jet engine blades and discs
Ti-6246
Be made gas turbine disk, fan blades and structural parts of aircraft and missiles.
T-V13CA
For the production of 250 °C below the frame, honeycomb structure and so on.
T-A6Z5W
Weldable high-strength titanium alloy has good creep resistance at 520 ℃.
T-A6ZD
For the production of jet engine components (such as blades, disc, etc.).
T-A4DE2
The alloy has high strength and creep resistance below 400°C.
3.7114
Solderable, acceptable moldability, medium strength.
3.7124
Plasticity, weldability and high temperature strength are similar to those of industrial pure titanium, and are used for parts and resists up to 350°C.
3.7134
Low density, high elastic modulus, used in the production of compressor discs, vanes, etc. working below 450°C are important materials for the aviation industry.
3.7144
Used to make aeroengine rotors and blades that work below 450°C.
3.7154
The alloy has high strength and good creep resistance and can be welded.
Used for long-term working parts below 500°C, such as aero-engine compressor parts.
3.7164
Good overall performance, used for high stress mechanical parts working below 350°C.
3.7174
It is a high-strength titanium alloy that can be heat-treated for forging and has good forging properties.
3.7184
Used to make aero engine components that operate below 400°C, such as compressor disks, vanes, etc.
LT32
The alloy has high strength and hardenability. It is used to make aircraft skeletons and missile forgings that work below 427°C.
LT41
Is a heat treatable titanium alloy, It has excellent formability and is used to make aircraft skeletons, skins, honeycomb structures, pressure vessels, and high-strength fasteners.
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Titanium and titanium alloy mechanical properties
| Grade | Room temperature mechanical properties, not less than | High temperature mechanical properties, not less than | ||||||
| Tensile strength σb MPa |
Yield strength σ0.2 MPa |
MPa elongation δ5 % | Shrinkage ψ % | Impact value αk J/cm2 | Test temperature °C | Tensile strength σb MPa | Durability σ 100 MPa | |
| TA1 | 343 | 275 | 25 | 50 | -- | |||
| TA2 | 441 | 373 | 20 | 40 | -- | |||
| TA3 | 539 | 461 | 15 | 35 | -- | |||
| TA5 | 686 | -- | 15 | 40 | 58.8 | |||
| TA6 | 686 | -- | 10 | 27 | 29.4 | 350 | 422 | 392 |
| TA7 | 785 | -- | 10 | 27 | 29.4 | 350 | 490 | 441 |
| TC1 | 588 | -- | 15 | 30 | 44.1 | 350 | 343 | 324 |
| TC2 | 686 | -- | 12 | 30 | 39.2 | 350 | 422 | 392 |
| TC4 | 902 | 824 | 10 | 30 | 39.2 | 400 | 618 | 569 |
| TC6 | 981 | -- | 10 | 23 | 29.4 | 400 | 736 | 667 |
| TC9 | 1059 | -- | 9 | 25 | 29.4 | 500 | 785 | 588 |
| TC10 | 1030 | -- | 12 | 25~30 | 34.3 | 400 | 834 | 785 |
| TC11 | 1030 | -- | 10 | 30 | 29.4 | 500 | 686 | 588 |
