Types of domestic origin Titanium Grade 99 TA0 titanium content (%) impurities 1 (%) Titanium (GB / T3620-1 ~ 2-1994) TA0 alloy chemical composition: Fe 0.15 C 0.10 N 0.03 0.15 Other single hydrogen oxygen 0.015 0.1 Other 0.4 total margin the most widely used titanium alloy is Ti-6Al-4V (TC4), Ti-5Al-2.5Sn (TA7) and commercially pure titanium (TA1, TA2 and TA3). Titanium is mainly used for the production of aircraft engine compressor components, followed by structure rockets, missiles and high-speed aircraft. The mid-1960s, titanium and its alloys have been in general industrial applications, electrodes for electrolysis industry production, power plant condensers, oil refining and desalination heater and environmental pollution control devices. Titanium and its alloys have become a corrosion resistant structural materials. In addition, China, USA and Russia for the production of hydrogen storage materials and TAD iodide titanium shape memory alloy Grade1 the 1st commercially pure titanium BT1-00 TA1 commercially pure titanium Grade2 2 号 titanium BT1-0 of TA2 titanium industry Grade3 3 号 titanium OT4 -0 Ti-0.8Al-0.7Sn TA3 commercially pure titanium Grade4 4 号 OT4 -1 Ti-2Al-1.5Mn TA4 Ti-3Al Grade5 Ti-6Al-4V OT4 Ti-3Al-1.5Mn TA5 Ti-4Al-0.005B Grade6 Ti-5Al-2.5V BT5 Ti-5Al TA6 Ti-5Al Grade7 Ti-0.2Pd BT5 -1 Ti-5Al-2.5Sn TA7 Ti-5Al-2.5Sn Grade9 Ti-3Al-2.5V BT6 Ti-6Al-4V TA8 Ti-5Al-2.5Sn-3Cu-1.5Zr Grade10 Ti-11.5Mo-4.5Sn-6Zr BT6c Ti-6Al-4V TC1 Ti-2Al-1.5Mn Grade11 Ti-0.2Pd BT3 -1 Ti -6Al-1.5Cr-2.5Mo-0.5Fe-0.3Si TC2 Ti-3Al-1.5Mn Grade12 Ti-0.3Mo-0.75Ni BT9 Ti-6.5Al-3.5Mo-0.3Si TC3 Ti-4Al-4V A-1 Ti -5Al-2.5Sn BT / 4 Ti-5Al-3Mo-1.5V TC4 Ti-6Al-4V A-3 Ti-6Al-2Nb-1Ta BT16 Ti-2.8Al-5Mo-5V TC6 Ti-6Al-1.5Cr-2.5 Mo-0.5Fe-0.3Si A-4 Ti-8Al-1Mo-1V BT18 Ti-8Al-0.6Mo-11Zr-1Nb TC7 Ti-6Al-0.6Cr-0.4Fe-0.4Si-0.01B AB-1 Ti-6Al -4V BT19 Ti-3Al-5.5Mo-3.5V-5.5Cr-1Zr TC9 Ti-6.5Al-3.5Mo-2.5Sn-0.3Si AB-3 Ti-6Al-6V-2Sn BT20 Ti-6Al-1.5Mo-1.5 V TC10 Ti-6Al-6V-2Sn-0.5Cu-0.5Fe AB-4 Ti-6Al-2Sn-4Zr-2Mo BT22 Ti-5.5Al-5V-5Mo-1.5Cr-1.0Fe TC11 Ti-6Al-3.5Mo- 1.5Zr-0.3Si AB-5 Ti-3Al-2.5V ПT-3B Ti-4Al-2V TB2 Ti-5Mo-5V-3Cr-3Al B-1 Ti-3Al-13V-11Cr ПT-7M Ti-2Al