TA4 Titanium
TA4 titanium alloy is an aluminum-containing titanium alloy with a single-phase α structure, exhibiting excellent high-temperature strength and creep resistance, strong corrosion resistance, and good weldability. Its strengthening mechanism is primarily solid solution strengthening, with mechanical properties between commercially pure titanium and high-strength titanium alloys. TA4 is widely used in aerospace, medical devices, marine engineering, and chemical equipment, and serves as a primary welding wire material in China. Due to its outstanding performance and variety of specifications, it is an important material across multiple industries.
Chemical Composition
|
Ti |
Fe |
C |
N |
H |
O |
|
|
Min |
Rem |
- |
- |
- |
- |
- |
|
Max |
0.5 |
0.08 |
0.05 |
0.015 |
0.4 |
Material Properties
|
Minimum Mechanical Properties of the Alloy at Room Temperature |
||
|
Tensile Strength |
Yield Strength |
Elongation |
|
Rm N/mm2 |
Rp0.2 N/mm2 |
A5% |
|
580 |
485 |
20% |
Feature
TA4 titanium alloy is primarily composed of titanium, with a content of no less than 98%. Alloying elements and impurities are strictly controlled to tailor its properties. Compared to lower-grade commercially pure titanium, TA4's higher but controlled oxygen and iron content gives it moderate-to-high strength characteristics.
TA4 is a medium - strength titanium alloy with notable mechanical properties. It offers a minimum tensile strength of 550 MPa and yield strength of 480 MPa, surpassing lower - grade pure titaniums while remaining below some alloyed variants. With 15 - 20% elongation at break, it's highly ductile, enabling fabrication via rolling, forging, and bending. Temperature - wise, it retains integrity up to 204 °C and excels in cryogenic applications, though its ultra - low - temperature performance isn't as studied as dedicated alloys.
Applications
(1) Aerospace Industry
Aircraft hydraulic tubing, fuel lines, and airframe components (e.g., Boeing & Airbus).
Engine components requiring lightweight durability.
(2) Marine & Offshore Engineering
Submarine piping, seawater desalination systems, offshore oil rigs.
Propeller shafts and ship fittings (corrosion resistance).
(3) Chemical & Petrochemical Processing
Heat exchangers, reactors, and chemical transport pipes.
Valves and pumps handling corrosive fluids.
(4) Medical & Dental Applications
Orthopedic implants, surgical instruments, and dental devices.
(5) Automotive & Motorsports
High-performance exhaust systems, racing components.
(6) Sports & Consumer Goods
Bicycle frames, golf clubs, and high-end eyewear.
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