Among the titanium metals, including titanium plates, titanium rods, titanium tubes and the like, both of pure titanium and titanium alloys are included. The most striking difference between pure titanium and titanium alloy is that titanium alloy is added with chemicals such as Al, Mo, Cr, Sn, etc. on the basis of pure titanium, and it is precisely because these chemicals cause the two titanium metals to The difference in performance. The following small series focuses on the analysis of the classification, performance and use of pure titanium.
1. Classification of pure titanium:
According to the impurity content, titanium is classified into high-purity titanium (purity of 99.9%) and industrial pure titanium (purity of 99.5%). Industrial pure titanium has three grades, which are represented by TA+ sequence numbers 1, 2, and 3, respectively. The larger the number, the lower the purity.
2, the performance of pure titanium:
Ti: 4.507 g/cm3, Tm: 1688 °C. It has the same isomerization transition, ≤882.5 °C is the α phase of close-packed hexagonal structure, β phase of ≥882.5 °C body-centered cubic structure.
Pure titanium has low strength, but high specific strength, good plasticity, good low temperature toughness and high corrosion resistance. Titanium has good pressure processing properties and poor cutting performance. Titanium can be burned by heating in nitrogen, so titanium should be protected by argon during heating and welding.
3, the use of pure titanium:
The impurity content has a great influence on the performance of titanium. A small amount of impurities can significantly increase the strength of titanium. Therefore, the strength of industrial pure titanium is high, close to the level of high-strength aluminum alloy, and is mainly used for the heat exchange of petrochemicals working at temperatures below 350 °C. , reactors, ship parts, aircraft skins, etc.
Baoji titanium plate manufacturers
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