The difference between TA18 titanium alloy and TC4 titanium alloy
TA18 titanium alloy and TC4 titanium alloy are two materials commonly used in aerospace and industrial fields. Although they all belong to the titanium alloy family, they have significant differences in chemical composition, properties, and applications.
1. TA18 (Ti-3Al-2.5V) titanium alloy is a two-phase α+β titanium alloy with good high-temperature mechanical properties and corrosion resistance, excellent hot and cold processing plasticity and formability, welding performance and cold Forming performance is better than TC4 (Ti-6Al-4V)
In contrast, TC4 titanium alloy is a three-phase α+β titanium alloy with excellent comprehensive mechanical and mechanical properties and good process performance.
TA18 chemical composition
|
TA18 (T1- 3 A1- 2.5 V) Chemical composition % ) Titanium metal |
|||||||||
|
Main ingredients % |
Impurity% |
||||||||
|
Ti |
A I |
T |
Fe |
C |
N |
H |
o |
other elements |
|
|
single |
sum |
||||||||
|
margin |
2.3~3.5 |
1.5~3.0 |
0.25 |
0.06 |
0.05 |
0.015 |
0.12 |
0.10 |
0.32 |
2. TA18 titanium alloy is famous for its high strength, high toughness and excellent corrosion resistance. It has a good combination of properties making it suitable for aircraft engine parts and landing gear.
On the other hand, TC4 titanium alloy has excellent mechanical properties such as high strength, good ductility and excellent corrosion resistance. It also has excellent high temperature resistance and is widely used in the production of aircraft structural parts such as engine compressor blades and rockets.
TC4 chemical composition
|
TC4(T1-6A1-4V) chemical composition % ) titanium metal |
|||||||||
|
Main ingredients % |
Impurity% |
||||||||
|
Ti |
A I |
T |
Fe |
C |
N |
H |
o |
other elements |
|
|
single |
sum |
||||||||
|
margin |
5.5~6.8 |
35~4.5 |
0.30 |
0.06 |
0.05 |
0.015 |
0.20 |
0.10 |
0.32 |
TA18 titanium alloy is commonly used in the production of aircraft engine parts, bearings and valve components, aircraft landing gear and fasteners.
At the same time, TC4 titanium alloy is widely used in aircraft and missile components, turbine blades, heat exchangers, medical equipment and geological drilling equipment.
In summary, there are significant differences in chemical composition, properties and applications between TA18 and TC4 titanium alloys. Both materials play a vital role in the aerospace and industrial sectors, where high performance and reliability are critical.
TA18 chemical composition

TA18 titanium alloy tube

TC4 titanium alloy screws







