Types of domestic origin Titanium Grade 99 TC4 titanium content (%) impurities 1 (%) Grade example uses the main characteristics of commercially pure titanium YA1, YA2, stamping YA3 excellent performance. Can be various forms of welding, welding performance is good, 90% of welded joints can Scientology metal strength. Ease of saws and abrasive cutting, good machining properties. Excellent corrosion resistance for the following 350 ℃, the force of small parts and stamping parts into a variety of complex shapes. Such as thermal power station condenser; marine corrosion in seawater piping systems, valves, pumps; chemical heat exchangers, pumps, distillation columns; desalination systems, plating platinum anode; aircraft skeleton, skin, engine parts, beams and other TA6 has good weldability, a higher creep strength, but lower plasticity processes, under hot deformation state, when the alloy is subjected to axial load, no sensitivity to the incision, cutting is still good work below 400 ℃ parts and weldments TA7 stamping poor performance, thermoplastic is still good. Can be various forms of welding, good performance, strength and ductility of welded joints can be equal to the base metal. Titanium machining performance with the same industry. Good corrosion resistance, good thermal stability below 500 ℃ structures do long-term work, do all kinds of forging parts TA8 thermoplastic good. Can be various forms of welding, good weldability. Machining of the same commercially pure titanium. Good oxidation resistance below 500 ℃ long working parts. You can build an engine compressor disk and blades TC1 punching good. Can be various forms of welding, good weldability. Machining of the same commercially pure titanium. Good oxidation resistance below 400 ℃ parts do work. Suitable for all kinds of sheet metal stamping and welding parts TC2 at 350 ℃, 100h lasting strength above 400MPa, thermal processing have good ductility. Heated to 350-400 ℃, no tendency to brittle hair, therefore, can be welded parts working at high temperatures below 500 ℃ work done parts, welding parts, forging parts and bending TC4 stamping parts such as the poor, thermoplastic good. Can be various forms of welding, weld joint strength Scientology metal strength 90%. Machining performance is still good, you need to use carbide cutting tools, a large amount of passes, slow, cool sufficiently. Good corrosion resistance, good thermal stability. Is one of the most widely used titanium alloy parts below 400 ℃ to do long-term work TC5 stable below 350 plastic drop at higher temperatures. In the thermal state can be forged, stamping parts TC9 thermoplastic deformation at below 350 ℃ work is still good. Machining of the same alloy TC4. High corrosion resistance. Thermal stability is still good parts below 400 ℃ long-term work. Compressor disk and blades can be manufactured TC10 stamping poor thermoplastic good. Can be various forms of welding, weld joint strength Scientology metal strength 90%. Machining performance with the same alloy TC4. Good corrosion resistance. Good thermal stability, heat treatment effect is remarkable, good hardenability do parts below 450 ℃ long-term work