China first released the first National Standard GB/T13810-1992 "titanium and titanium alloy processing materials for surgical implants" in 1992, marking the beginning of professional production of titanium alloy raw materials for medical devices.At present, China mainly produces 3 categories of titanium alloy materials: pure titanium (Chinese brand TA1~TA4, American corresponding brand GR1~ GR4), Ti6Al4V (Chinese brand TC4, American corresponding brand GR5 or Ti64), and Ti6Al7Nb (Chinese brand TC20).
pure titanium(α) | two phases titanium alloy (α+β) | titanium alloy（β） | Inclusion criteria | |
China | TAIELI,TA1，TA2，TA3，TA4 | TC4, TC4ELI, TC20 | GB/T13810-2007 | |
American | GR1，GR2，GR3，GR4 | GR5(Ti64), GR5ELI, Ti6Al7Nb | Ti13Nb13Zr,Ti15Mo,Ti12Mo6Zr2Fe | IAO5832-3 ASTM F136-02a |
Among the titanium alloy materials that have been incorporated into the biomedical material standard in the world, up to now, pure titanium and Ti6Al4V titanium alloy are still the main materials for surgical implants with the largest production and sales volume and the widest application in the world, and their sales account for more than 80% of the global biomedical titanium alloy market. At present, the varieties of titanium and titanium alloy processing materials for surgical implants produced in China include plate (thickness 0.8~25mm), bar and wire (diameter 1~90mm), and the supply status can be cold rolled, hot worked and annealed.
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