1, pure titanium classification:
Depending on the impurity content, titanium is divided into high purity titanium (purity up to 99.9%) and industrial pure titanium (purity up to 99.5%). Industrial pure titanium has three brand names, respectively, with the ta-plus sequence numbers 1, 2, 3, the larger the number, the lower the purity.
2, pure titanium performance:
Ti: 4.507 g/cm3, Tm: 1688 degrees C. It has isomer isomer transformation, which is the alpha phase of the dense hexa-square structure at 882.5 degrees C and the beta phase of the heart cube structure at 882.5 degrees C.
The strength of pure titanium is low, but it is higher than strength, good plasticity, good low temperature toughness and high corrosion resistance. Titanium has good pressure process performance and poor cutting performance. Titanium can be burned when heated in nitrogen, so it should be protected by argon when heating and welding.
3, the use of pure titanium:
Impurity content has a great impact on the performance of titanium, a small number of impurities can significantly improve the strength of titanium, so the industrial pure titanium strength is high, close to the level of high-strength aluminum alloy, mainly used in the manufacture of 350 degrees C below the temperature of the petrochemical heat exchanger, reactor, ship parts, aircraft skin and so on.
