First of all, it won the title of "space metal". Because of its light weight, high strength and high temperature resistance, it is especially suitable for manufacturing aircraft and various spacecraft. At present, about three-quarters of titanium and titanium alloys produced in the world are used in aerospace industry. Many parts originally made of aluminum alloy have been replaced by titanium alloy.

The second glorious title of titanium is "submerged metal". Titanium alloy is not only a hero in heaven, but also a hero in diving. Because submarines are under great pressure when sailing in the deep sea. The deeper you dive, the greater the pressure. The shell of a nuclear submarine is made of titanium alloy, and its diving depth is twice that of a normal submarine. The titanium alloy submarine made in the United States can sail in the deep sea of 4500 meters. Without titanium alloy, it is impossible to dive to this depth.