Titanium bar has high strength and low density, good mechanical function, good tolerance and corrosion resistance. In addition, titanium alloy process function is poor, cutting is difficult, in hot processing, very simple absorption of hydrogen, oxygen, nitrogen, carbon and other impurities. There is poor wear resistance, production process clutter. Industrial production of titanium began in 1948. The demand from aviation industry makes the titanium industry develop at an even annual growth rate of about 8%.

The current international titanium alloy processing material annual output has reached more than 40,000 tons, titanium alloy trademarks nearly 30 kinds. The most widely used titanium alloys are Ti-6al-4V (TC4), Ti-5al-2.5SN (TA7) and industrial pure titanium (TA1, TA2 and TA3). Titanium alloy is mainly used in the production of aircraft engine compressor parts, followed by rockets, missiles and high-speed aircraft layout parts. By the mid-1960s, titanium and its alloys were commonly used in industry, making electrodes for electrolysis, condensers for power stations, heaters for petroleum extract and seawater desalination, and pollution control equipment. Titanium and its alloys have become a corrosion resistant layout data.

In addition, it is also used to produce hydrogen storage data and shape recall alloy. Titanium alloy is a new important layout data used in aerospace industry. Its specific gravity, strength and operating temperature are between aluminum and steel, but its specific strength is high and it has excellent anti-seawater corrosion function and ultra-low temperature function. The amount of titanium alloy in the aeroengine usually accounts for 20% ~ 30% of the total weight of the layout. It is mainly used for making compressor parts, such as casting titanium fan, compressor disc and blade, casting titanium compressor casing, intermediate casing and bearing housing, etc. The high specific strength, corrosion resistance and low temperature resistance of titanium alloy are used to manufacture various pressure vessels, fuel tanks, fasteners, instrument straps, frames and rocket casings. Titanium alloy plates are also used for welding satellites, lunar modules, manned spacecraft and space shuttles.