Ti-3Al-2.5V(Grade 9)

  • Grade9
  • Ti-3Al-2.5V

Product Details

Ti-3Al-2.5V (Grade 9) Introduction

Ti-3Al-2.5V (Grade 9) is a near α-type titanium alloy. The composition is Ti-3Al-2.5V. It is developed as a cold - processed tube. Its strength is 20% - 50% higher than pure titanium at room temperature and high temperature, and excellent welding property and cold forming performance. TA18 alloy is generally used in annealing condition and can be used in cold processing and stress annealing. The maximum working temperature is about 315 ˚C. TA18 seamless tube is suitable for the aircraft and engine hydraulic and fuel oil pipeline system, also can be rolled into titanium foil and titanium strip. The former is mostly used in aircraft honeycomb structure.

Ti-3Al-2.5V Titanium Alloy Chemical Composition (wt)%
Element Impurity ≤
Al V Ti Fe C N H O Y Other Elements
Single Total
2.5-3.5 2.0-3.0 Balance 0.30 0.05 0.025 0.015 0.12 0.005 0.10 0.40
Near α Type Titanium Alloy Properties
Type Grade Chemical Composition Operating Temperature/˚C Intensity Level/MPa
Near α Grade 9 Ti-3Al-2.5V 320 ≥ 620
Ti-3Al-2.5V Heat Distortion Process Specification
Heat Distortion Type Heat Temperature/˚C Final Temperature/˚C Fire Deformation/%
ingot formation 1000 - 1050 ≥ 750 50 - 70
billet forging 900 - 950 ≥ 750 50 - 70
pipe billet extrusion 740 - 880 ≥ 700 40 - 70
pipe billet cross piercing 950 - 980 ≥ 800 40 - 70
rod rolling 800 - 850 ≥ 700 40 - 80
sheet rolling 800 - 880 ≥ 750 40 - 60

Ti-3Al-2.5V (Grade 9) Application

Ti-3Al-2.5V alloy was is in high-tech military, aerospace and civil aircraft as hydraulic, fuel and other piping systems in the 1970s. In the early 1990s, the air conditioning pipeline of the transport aircraft in China also used TA18, and it will be applied in the aviation engine piping system. In recent years, it has been used as a kind of complex shape, medium strength and welding torch. Ti-3Al-2.5V alloy has been used in various industries. For example, oil exploration instrument coat pipe fittings, heat exchanger pipe fittings, titanium fishing rod body, spectacle frame shaped wire, golf club etc.
Ti-3Al-2.5V(Grade 9) Application

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