Common Grades Of Titanium Alloys

Jun 22, 2024

Industrial pure titanium TA1, TA2, TA3

Excellent stamping performance. Can be welded in various forms with good welding performance, and the welded joint can reach 90% of the strength of the base metal. Easy to saw and grind, with good mechanical processing performance. Excellent corrosion resistance, used for parts below 350℃, with small stress, and parts stamped into various complex shapes. Such as thermal power station condensers; marine seawater corroded pipeline systems, valves, pumps; chemical heat exchangers, pump bodies, distillation towers; seawater desalination systems, platinum-plated anodes; aircraft skeletons, skins, engine parts, beams, etc.

 
Common grades and uses of titanium alloys
 
Titanium Alloy TA6

It has good welding performance and high creep strength, but low process plasticity. It can be deformed in a hot state. When the alloy is subjected to axial load, it is not sensitive to the cut. The cutting performance is good for parts and welded parts working below 400℃.

Titanium Alloy TA7

Poor stamping performance, good thermoplasticity. Dongri can be welded in various forms with good performance. The strength and plasticity of the welded joint are equal to those of the base metal. The machining performance is the same as that of industrial pure titanium. Good corrosion resistance and high temperature thermal stability. It can be used as structural parts for long-term work below 500℃ and various die forgings.

Titanium Alloy TA8

Good thermoplasticity. Dongri can perform various forms of welding, with good weldability. Machinability is the same as industrial pure titanium. Good oxidation resistance. Long-term working parts below 500℃. Dongri can manufacture engine compressor disks and blades.

Titanium Alloy TC1

Good stamping performance. Dongri can be welded in various forms, with good weldability. Machinability is the same as industrial pure titanium. Good oxidation resistance, can be used for parts working below 400℃. Suitable for various plates, stamping and welding parts.

Titanium Alloy TC2

At 350℃, the endurance strength after 100h is above 400MPa, and it has good plasticity in hot working. When heated to 350-400℃, it has no tendency to become brittle, so it can be used to weld parts working at high temperature, parts working below 500℃, welded parts, die forgings, and parts processed by bending, etc.

Titanium Alloy TC3

Poor stamping performance, good thermoplasticity. Can be welded in various forms, and the strength of the welded joint can reach 90% of the strength of the base metal. Machinability is good, requiring the use of cemented carbide, large cutting volume, slow speed, and sufficient cooling. Good corrosion resistance and good thermal stability. Dongri Metal is one of the most widely used titanium alloys for parts that work for a long time below 400℃.

Titanium Alloy TC4

The composition of the material is Ti-6Al-4V, which belongs to the (a+b) type titanium alloy with good comprehensive mechanical properties. High specific strength. The strength of TC4 is sb=1.012MPa, the density is g=4.4*103, the specific strength is sb/g=23.5, while the specific strength of alloy steel is less than 18. The thermal conductivity of titanium alloy is low. The thermal conductivity of titanium alloy is 1/5 of iron and 1/10 of aluminum. The thermal conductivity of TC4 is l=7.955W/m·K. Linear expansion coefficient = 7.89*10-6 ℃, specific heat = 0.612cal/g ·℃. The elastic modulus of titanium alloy is low. The elastic modulus of TC4 is E=110GPa, which is about 1/2 of steel, so titanium alloy is easy to deform during processing. TC4 (Ti-6Al-4V) and TA7 (Ti-5Al-2.5Sn) titanium alloys were surface modified using two implantation schemes. The test results showed that after ion implantation, the microhardness of the titanium alloys was improved, the sliding friction coefficient was significantly reduced, and the wear resistance was effectively improved. In order to explore the modification mechanism, X-ray photoelectron spectroscopy (XPS) analysis was performed on the injected and non-injected samples, and satisfactory results were obtained. TC4 titanium alloy has a series of advantages such as excellent corrosion resistance, low density, high specific strength, good toughness and weldability, and has been successfully applied in aerospace, petrochemical, shipbuilding, automobile, mold, medicine and other departments.

Titanium Alloy TC5

It is stable below 350℃, and its plasticity decreases at higher temperatures. Parts that can be deformed by forging, stamping, etc. under hot conditions and work below 350℃.

Titanium Alloy TC9

Good thermoplasticity. Machinability is the same as T alloy. High corrosion resistance. Good thermal stability. Parts that work for a long time below 400℃. Can be used to manufacture compressor disks and blades.

Titanium Alloy TC10

Poor stamping performance, good thermoplasticity. Dongri can be welded in various forms, and the strength of the welded joint can reach 90% of the strength of the base metal. The mechanical processing performance is the same as that of T alloy. Good corrosion resistance. Good thermal stability, significant heat treatment effect, good hardenability. It can be used for parts that work for a long time below 450℃.