Titanium / titanium rod / Titanium has a high strength and density and small, good mechanical properties, good toughness and corrosion resistance. In addition, poor process performance titanium alloy, machining difficulties in thermal processing, and very easy to absorb carbon hydrogen nitrogen and other impurities. There are poor abrasion resistance, complex production process. Titanium industrial production was started in 1948. Require the development of the aviation industry, the titanium industry with an average annual growth rate of about 8% of the development. Currently the world's titanium alloy production reached 40,000 tons, nearly 30 kinds of titanium alloys. The most widely used titanium alloy is Ti-6Al-4V (TC4), Ti-5Al-2.5Sn (TA7) and commercially pure titanium (TA1, TA2 and TA3).

Titanium is mainly used for the production of aircraft engine compressor components, followed by structure rockets, missiles and high-speed aircraft. The mid-1960s, titanium and its alloys have been in general industrial applications, electrodes for electrolysis industry production, power plant condensers, oil refining and desalination heater and environmental pollution control devices. Titanium and its alloys have become a corrosion resistant structural materials. In addition, for the production of hydrogen storage materials and shape memory alloys. Titanium is an important new structural materials used in the aerospace industry, the proportion between the aluminum and steel, the strength and the use of temperature between, but high strength and excellent resistance than seawater corrosion and ultra-low temperature performance. The amount of titanium in the aviation engine usually accounts for 20% to 30% of the total weight of the structure, mainly for the manufacture of compressor components, such as forging titanium fan, compressor disk and blades, cast titanium compressor casing, intermediate casing, bearing housing and so on. Spacecraft main use of high strength titanium alloy, corrosion resistance and low temperature performance to produce all kinds of pressure vessels, fuel tanks, fasteners, instrument straps, architecture and rocket casing. Sputnik, the lunar module, manned spacecraft and space shuttle are also using titanium plates welded.