Industrial Pure Titanium GR1, GR2, GR3:
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 machining performance. Excellent corrosion resistance, used for parts below 350℃, with small stress, and parts stamped into various complex shapes. Such as thermal power plant
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 hot state. Dongri alloy is not sensitive to cuts when bearing axial loads. The cutting
performance is good. 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 can be equal to those of the
base metal. The machining performance is the same as that of industrial pure titanium. Good corrosion resistance and good high temperature thermal stability. It can be used as structural parts
working for a long time below 500℃ and various die forgings.
Titanium alloy TA8:
Good thermoplasticity. Dongri can be welded in various forms with good weldability. The machining performance is the same as that of industrial pure titanium. Good oxidation resistance. Parts
working for a long time below 500℃. Dongri can manufacture engine compressor disks and blades.
Titanium alloy TC1:
Good stamping performance. Dongri can be welded in various forms and has good weldability. Machinability is the same as industrial pure titanium. Good oxidation resistance for parts working
below 400℃. Suitable for various plates, stamping and welding parts.
Titanium alloy TC2:
At 350℃, the endurance strength for 100h is above 400MPa, and hot processing has good plasticity. When heated to 350-400℃, it has no tendency to become brittle. Therefore, it can be used to
weld parts working at high temperatures to make parts working below 500℃, welded parts, die forgings and bent parts, etc.
Titanium alloy TC3:
Poor stamping performance, good thermoplasticity. Various forms of welding can be performed, and the strength of the welded joint can reach 90% of the strength of the base metal. The machining
performance is good, and cemented carbide is required, with large cutting amount, 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, and 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 that of steel, so titanium alloy is easy to deform during processing. TC4 (Ti-6Al-4V) and
TA7 (Ti-5Al-2.5Sn) titanium alloys are surface modified by two injection schemes. The test shows that after ion injection, the titanium alloy has improved microhardness, significantly reduced
sliding friction coefficient, and effectively improved wear resistance. In order to explore its modification mechanism, X-ray photoelectron spectroscopy (XPS) analysis was carried out on 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:
Stable below 350, plasticity decreases at higher temperatures. Forging, stamping and other deformations can be performed in hot state. Parts working below 350℃.
Titanium alloy TC9:
Good thermoplasticity. Machinability is the same as T alloy. High corrosion resistance. Good thermal stability. Parts working 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 perform various forms of welding, and the strength of the welded joint can reach 90% of the strength of the base metal.
Machinability is the same as T alloy. Good corrosion resistance. Good thermal stability, significant heat treatment effect, good hardenability. Parts working for a long time below 450℃.