Titanium is a chemical element with symbol Ti and atomic number 22. It is a lustrous transition metal with a silver color, low density and high strength. It is highly resistant to corrosion in sea water, aqua regia and chlorine.
The use of titanium alloys instead of special steels leads to a considerable reduction of building weight, a great advantage in aviation. In aircraft construction, titanium and its alloys are used to carrying heavy elements required of the fuselage of the jet engine parts, the armor plates for the weapons. Due to its good resistance to low temperatures, the use of titanium in the construction extends rocket fuel and liquid oxidants with temperatures between -195 ° C and -250 ° C.