Pure titanium TA1


TA1 belongs to α-type titanium alloy, which is an industrially pure titanium alloy. TA1 has high strength, low density, excellent corrosion resistance and toughness, and its tensile strength is between 350-550MPa. It has good plasticity and is easy to form and weld. TA1 is an industrial pure titanium alloy, also known as pure titanium TA1. It is composed of titanium elements with a purity higher than 99.5%, and is one of the most common and basic pure titanium alloys.

TA1 Chemical element content (%)



chemical composition






other single

total other










Physical Properties of TA1 Titanium Alloy




physical properties


melting point

4.51 g/cm3


Mechanical Properties of TA1 Titanium Alloy



mechanical properties

alloy state

résistance à la traction

Specified non-proportional tensile strength



Rm N/mm2


A5 %

Solution treatment




Heat Treatment of TA1 Titanium Alloy

For the heat treatment of TA1 titanium alloy, the annealing process is generally used. The following are some common recommended annealing parameters:

Annealing temperature: 670-720°C

Annealing time: 0.5-2 hours

Stress relief annealing scheme 1: 530-550°C, 0.5-1 hour

Stress relief annealing scheme 2: 470-490°C, 2-4 hours

These parameters are aimed at relieving the internal stress of the material and providing better mechanical properties and stability. During annealing, the material is typically heated to a recommended temperature, held for a certain period of time, and then slowly cooled to room temperature.

Welding of TA1 titanium alloy

Argon-shielded arc welding (TIG welding) is often used as the preferred method of welding for TA1 titanium alloys, as this provides good weld quality and lower risk of oxidation.

In addition to argon shielded arc welding, TA1 titanium alloy can also use other welding methods, such as plasma welding, resistance welding and gas shielded diffusion welding. These methods can be selected according to specific requirements and application scenarios.

In general, when welding TA1 titanium alloy, it is very important to select the appropriate welding method and welding parameters to ensure good weld quality and strength.

Processing of TA1 Titanium Alloy

The processing of A1 titanium alloy usually needs to consider the following aspects:

Vacuum Melting: Commercially pure titanium generally requires vacuum melting, at least once in a vacuum consumable electrode electric arc furnace, to ensure high purity and good material quality.

Hot working: Titanium alloys can withstand hot working, including forging, extrusion, rolling and drawing, etc. During thermal processing, care must be taken to maintain a neutral or weakly oxidizing atmosphere to prevent titanium from absorbing oxygen, hydrogen and nitrogen, resulting in reduced plasticity and performance. The temperature range for thermal processing is usually between 800°C and 900°C.

Cold working: Titanium alloys can also be cold worked, such as cold rolling, cold drawing, etc. In the cold working process, when the cold working rate reaches a certain value, intermediate annealing is generally required to eliminate strain hardening and improve the plasticity of the material.

It should be noted that titanium alloys have high requirements on the atmosphere during processing, and the use of reducing atmosphere should be avoided as far as possible, and the use of hydrogen heating is absolutely prohibited.

When processing TA1 titanium alloy, it is also necessary to select a suitable processing method according to specific processing requirements and process performance, and ensure that parameters such as temperature, strain rate and annealing are controlled during processing to obtain finished products that meet the requirements.

Advantages of TA1 titanium alloy

TA1 titanium alloy is a multifunctional alloy with many advantages and wide applications. Its high strength and excellent corrosion resistance make it ideal for use in many industries. At the same time, its low density allows it to lighten the structural load and increase the efficiency of material use. TA1 titanium alloy also has good toughness, can maintain stability in various temperature environments, and adapt to various working conditions.

Its excellent processing performance enables TA1 titanium alloy to be manufactured into structural parts of various shapes and sizes by various processes, such as forging, rolling, drawing, etc. Moreover, it can also perform welding and cutting operations, providing more flexibility and possibilities for the manufacturing industry.

In general, TA1 titanium alloy is widely used in aerospace, shipbuilding, automobile, chemical industry and many other fields due to its high strength, low density, corrosion resistance and good processing performance.

Defects of TA1 titanium alloy

Although TA1 titanium alloy has many advantages, it also has some disadvantages:

Expensive cost: Compared with traditional structural materials, the cost of TA1 titanium alloy is relatively high. This is mainly due to the scarcity of titanium resources and the complexity of extraction and processing. Therefore, it may face economic constraints in certain application areas.

Lower wear resistance: Compared to some other metals, TA1 titanium alloy has lower wear resistance. It may become worn and damaged in some high friction and high wear environments. Therefore, additional measures may be required in applications requiring high wear resistance.

Low elastic modulus: Compared with some other metals, TA1 titanium alloy has a low elastic modulus. This means that it may exhibit large deformation or deformation in some cases, affecting its range of application.

In summary, the disadvantages of TA1 titanium alloy include higher cost, lower wear resistance, and low elastic modulus. Despite these shortcomings, it can still play its advantages and be widely used in suitable application fields and with appropriate measures.

TA1 titanium alloy use

TA1 titanium alloy has a wide range of applications, mainly used in the following aspects:

Aerospace: TA1 titanium alloy is widely used in the aerospace field, such as aircraft skeleton, skin and engine accessories. Its high strength, corrosion resistance and low density make it ideal for aerospace materials.

Ship and ocean engineering: Because TA1 titanium alloy has excellent seawater corrosion resistance, it is often used to manufacture corrosion-resistant pipes, valves, pumps and other parts of ships. In addition, it can also be used in desalination systems and other structural parts in marine engineering.

Chemical industry: TA1 titanium alloy is widely used in the chemical industry to manufacture heat exchangers, pump bodies, distillation towers, coolers, agitators, tees and other corrosion-resistant equipment. It has excellent corrosion resistance in strong corrosive media and can provide reliable chemical equipment solutions.

Automobile industry: TA1 titanium alloy is often used in the automobile industry to manufacture pistons, connecting rods, leaf springs and other components of diesel engines. Its high strength and lightweight properties help improve engine performance and fuel economy.

Medical devices: TA1 titanium alloy is widely used in the field of medical devices due to its good biocompatibility with human tissues. For example, it can be used to make artificial joints, dental implants, surgical instruments, and more.

Other application fields: TA1 titanium alloy can also be used to manufacture mechanical equipment heat exchangers, golf clubs, etc. Its high strength, good corrosion resistance and lightweight properties make it an ideal structural material.

Therefore, TA1 titanium alloy has a wide range of applications in stamping parts, corrosion-resistant structural parts, aerospace, ship engineering, chemical industry, automobile industry, medical equipment and other fields.