TA18 Titanium Corrosion Resistant Alloy

TA18 is the full name of Ti-2Al-2.5Sn-3.7Zr-0.5Mo-0.3Si alloy, which is a low aluminum equivalent nearly α-type α+β titanium alloy evolved from TC4 (Ti-6Al-4V) titanium alloy. It not only has good room temperature and high temperature mechanical properties and corrosion resistance, but also has excellent cold and hot processing plasticity, formability, welding performance and corrosion resistance. TA18 titanium alloy pipes are widely used in aircraft engine hydraulic and fuel pipeline systems, bicycle tripods and handlebars, golf clubs, fishing rods, oil drilling casing and heat exchanger tubes, etc.

1. High strength: TA18 alloy can still maintain high strength under high temperature conditions and is suitable for various extreme working conditions.

2. Excellent corrosion resistance: It performs well in seawater and various chemical media and is suitable for use in harsh environments.

3. Good wear resistance and fatigue resistance: It is suitable for applications that require long-term stable operation.

4. Processability: TA18 alloy has good processing performance and can be processed by a variety of processes.

5. Lightweight: It has a lower density, which is conducive to lightweight design.

Tensile strength: about 900 MPa

 

Yield strength: about 800 MPa

 

Ductility: about 10%

 

Hardness: about 250 HB

1. Cold processing: suitable for the manufacture of parts requiring high precision and surface quality, such as cold drawing, cold rolling, cold heading, etc.

2. Hot processing: carried out under high temperature conditions, such as hot forging, hot rolling and hot forming, etc., suitable for the manufacture of large pieces of materials or complex shapes.

3. Aging treatment: usually carried out at 500°C to 650°C, used to adjust the performance and organizational structure of the material.

4. Solution treatment: carried out at a higher temperature, the purpose is to dissolve the supersaturated solid solution in the alloy and prepare for subsequent treatment.

5. Annealing treatment: carried out under conditions lower than the solution treatment temperature, used to eliminate residual stress and improve processing performance.

6. Welding: can be carried out by TIG welding, MIG welding or electron beam welding, with high joint strength, good corrosion resistance and fatigue performance.

7. Machining: including milling, drilling, turning, etc., it is necessary to pay attention to the selection of appropriate cutting tools and parameters.

8. Electrospark machining: suitable for the processing of workpieces with complex shapes and high precision requirements.

· Aerospace: used to manufacture aircraft structural parts, engine parts, etc.

· Chemical industry: manufacture corrosion-resistant chemical equipment and reactors.

· Medical: manufacture medical devices such as artificial joints and dental implants.

· Marine engineering: used for seawater treatment equipment, offshore platform structures, etc.