Titanium has the characteristics of high melting point, small specific gravity, high specific strength, good toughness, fatigue resistance, corrosion resistance, low thermal conductivity, good high and low temperature tolerance, and low stress under rapid cold and hot conditions. Its commercial value in the 20th century It has been recognized since the 1950s that titanium and other elements such as iron, aluminum, vanadium or molybdenum have formed high-strength light alloys, which are used in high-tech fields such as aviation, aerospace, and military industry. With the continuous promotion of titanium to the chemical, petroleum, electric power, seawater desalination, construction, agricultural food, medicine, daily necessities and other industries, titanium metal is increasingly being valued by people and is known as the "third metal", "space metal", "Marine metals" and "universal metals" are also called "modern metals" and "strategic metals" because they are important strategic materials indispensable for improving the level of national defense equipment.
Titanium alloys can be classified:
According to the structure and composition, Gr2 Pure Titanium Sheet alloys can be divided into α titanium alloys, β titanium alloys and α + β titanium alloys. In China, the prefixes TA, TB, and TC of the metal material brands represent α, β, and α+β titanium alloys, respectively.
According to the state of physical form, titanium alloys can be divided into plates, strips, bars, pipes, wires (wires), profiles, castings, and forgings.
The production process of titanium material is mainly to first melt and cast sponge titanium to prepare titanium ingots, and then to forge, extrude, roll or stretch the titanium ingots to obtain titanium or titanium alloy bars, pipes, and tubes for downstream use. Plate, cake, ring and other products. Titanium material has a low yield rate, and a large amount of waste residues are generated during the processing process, resulting in higher production costs. At present, about 1.7 tons of sponge titanium raw materials are needed for 1 ton of titanium material in China.
The production of titanium alloy pipe processed materials is mainly concentrated in China, the United States, Russia, Japan and other countries. In 2010, my country surpassed the United States to become the world's largest producer of titanium materials, but most of my country's titanium materials are used in industrial fields with relatively low technical content, while the United States is mainly high-end titanium materials such as aviation titanium materials. In 2018, my country's titanium output reached 63,400 tons, a year-on-year increase of 14.42%.
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