Titanium as a useful metal alloy was not commonly used until the late 1940s. It is most often alloyed with molybdenum, manganese, iron, and aluminum. By weight titanium is one of the strongest readily available metals, making it ideal for wide range of practical applications. It is 45% lighter than steel with comparable strength, and twice as strong as aluminum while being only 60% heavier.

As an element, Titanium has an atomic number of 22. Its atomic mass is 47.867 amu, it has a relatively high boiling point of 1660 Celsius (3020 Fahrenheit). Titanium-44, Titanium-45, and Titanium-51 are all radioactive isotopes, created when it is bombarded with deuterons.

In jewelry, titanium is one of the most popular metals. This is due to its ability to be colored easily, and its relative inertness. Even people with hypersensitivities to metals are often unaffected by wearing titanium jewelry.