BT9 Titanium Alloy Rod

The BT9 Titanium Alloy Rod Product Description

The BT9 Titanium Alloy Rod can be used in many fields. BT9 titanium alloy is a kind of α-β titanium alloy with good comprehensive properties. It has excellent thermal strength properties below 500 °C and has high room temperature strength. 

The alloy also has good hot workability and can be welded and machined in various ways. At present, with the continuous expansion of the application of BT9 titanium alloy, the alloy's beta heat treatment and isothermal forging have achieved rapid development.

The alloy is mainly used in the manufacture of aero-engine compressor discs, blades, drums, and other parts, and can also be used in the manufacture of aircraft structural parts. 

Through thermal deformation and heat treatment in the α-β region, the maximum long-term working temperature of the alloy is 500 ° C, and the semi-finished products produced include bars, forgings, die forgings, and castings.

BT9 titanium alloy is a two-phase heat-strength titanium alloy of the Ti-Al-Mo-Zr-Si series. It has high aluminum content and molybdenum content. The good combination of the two enables the alloy to have a good high temperature at 500 ℃. 

High performance, satisfactory process performance, and thermal stability, mainly used in aero-engine compressor parts, such as blades, discs, drums, and shafts. 

It can also be made into special-shaped castings. The working conditions of the parts are that they can be used for 500h below 500°C, 100h below 550°C and 1000h below 450°C in the returned state, and can be used for parts that work below 500°C for 100h in the strengthened state. 

Parts for one-time work below 700°C. In recent years, BT9 titanium alloy is the most used titanium alloy in engines.

BT9 Titanium Alloy Rod Picture display

Mechanical Properties

Toughness

Welding Process and Performance

1.The alloy can be applied to welded structures. Fusion welding must be protected by inert gas (argon, helium) or vacuum methods. Welds should be free of oxidation or pale yellow.

2. Since the alloy has a large response to the thermal cycle of welding, some special heat treatment is required, not only to eliminate residual stress but also to stabilize the microstructure and properties of the metal adjacent to the weld seam. 

Post-weld annealing and air or furnace cooling are generally recommended. Annealing is carried out in a vacuum furnace or in a container of inert gas, and flame lance is not allowed to anneal.

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