tungstène
Tungsten, also known by its chemical symbol W and atomic number 74, is a chemical element. It is a hard, brittle, silvery-white metal. Tungsten has the highest melting point of all pure elements, at 3422 °C (6192 °F). It also has a very high boiling point, at 5930 °C (10706 °F). These extreme thermal properties make it useful in applications where high temperatures are involved.
Tungsten is found in nature primarily in the minerals wolframite and scheelite. It was discovered by Carl
The primary use of tungsten is in the production of cemented carbides, particularly tungsten carbide (WC). This