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What Is The Difference And Characteristics Of Industrial Pure Titanium And Titanium Alloy?
Sep 28, 2018


    The density of titanium is 4.5 g/cm3, which is 57% of steel; titanium is less than twice as heavy as aluminum, and its strength is three times greater than that of aluminum. The specific strength is the ratio of strength to density. When compared with different materials, the specific strength of titanium alloy is almost the largest among commonly used industrial alloys. The specific strength of titanium alloy is 3.5 times that of stainless steel, 1.3 times that of aluminum alloy and 1.7 times that of magnesium alloy, so it is an indispensable structural material for the aerospace industry. Comparison of density and specific strength of titanium with other metals. Titanium has a high melting point, poor thermal conductivity and electrical conductivity, and is approximately or slightly lower than that of stainless steel. Titanium has superconductivity, and the superconducting critical temperature of pure titanium is 0.38.4K. Metal Titanium is a non-magnetic substance.


    Titanium alloy is a single-phase alloy composed of phase solid solution. Its density is small. It is a phase at both normal temperature and high practical application temperature. Its structure is stable and its wear resistance is higher than that of pure titanium. Strong. At 500-600 °C, it maintains its strength and creep resistance, can be heat-treated, has good heat strength and thermal stability, has good welding performance, and has good room temperature, ultra-low temperature and high temperature performance.


    Commercial pure titanium is a dense metal titanium having a titanium content of not less than 99% and containing a small amount of impurities such as iron, carbon, oxygen, nitrogen and hydrogen. The most intense impurities affecting the mechanical properties of pure titanium are oxygen, nitrogen and iron, especially oxygen. The reaction between hydrogen and titanium is reversible. The effect of hydrogen on the performance of titanium is mainly “hydrogen embrittlement”. Usually, the hydrogen content is not more than 0.015%, and generally contains 0.15%-0.3% oxygen and 0.03%-0.05% nitrogen. Although industrial pure titanium is densely packed in hexagonal lattice at normal temperature, its axis is relatively small (c/a=1.587), which has good processability, and it is easier to process titanium wire. Pure titanium has good molding properties and weldability and is not sensitive to heat treatment.


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