China first released the first national standard GB / t13810-1992 "titanium and titanium alloy processing materials for surgical implants" in 1992, which marks the beginning of professional production of titanium alloy raw materials for medical devices. However, 20 years later, although the national standard has been revised twice, China can only produce 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) β Type titanium alloy is included in the national standard, as shown in the table below.
Titanium has been incorporated into the international standard for medical biomaterials
Up to now, pure titanium and Ti6Al4V titanium alloy are still the traditional 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 state can be cold rolling, hot processing and annealing.
