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The difference between TA18 titanium alloy tube and TC4 titanium tube:

1.Different ingredients: Titanium alloy TA18 is a kind of near alpha titanium alloy, and TC4 is (alpha + beta) titanium alloy.

2.The welding performance and cold forming performance of TA18 titanium alloy tube are better than that of TC4, and the TC4 has better mechanical properties.

3.Different use: Ta18 titanium alloy pipes are most suitable for making plane resistant autoclaved lightweight catheter, while the application of TC4 titanium tube is more wide, which is used for landing gear wheel and structure, fasteners, stent, aircraft accessory, frame, purlin structure, pipeline and so on.

Titanium alloy TA18 is a kind of near alpha titanium alloy, the composition is Ti-3Al-2.5V, the welding performance and cold forming performance is better than TC4, the density is 4.47g/ cubic centimeter, the room temperature elastic modulus is 118-123GPa, the phase change point is 925 degrees Celsius, the hardness is 15-17HRC.

TC4 is composed of Ti-6Al-4V, which belongs to the heat treated titanium alloy. It has good formability and forging performance. It is used for the manufacturing of jet engine compressor blades, impeller and other pieces such as landing gear wheel and structure, fasteners, stent, aircraft accessory, frame, purlin structure, pipeline, and its application is very extensive.