What Is the Hardness of Tungsten Wire?

The hardness of tungsten wire is very high, it is one of the hardest of all metals. Its hardness is usually between 9 and 9.5 Mohs hardness, which makes tungsten wire very wear-resistant and difficult to scratch. Tungsten’s hardness is one of its key properties in a variety of applications and is particularly useful in high temperature, high pressure and wear-resistant environments.

This high hardness makes tungsten wire very valuable in some special applications, such as:

Light bulbs and lighting applications: Tungsten wire is used as the filament in incandescent light bulbs and halogen lamps due to its high hardness and high melting point. It is able to withstand high temperatures and bright light while retaining its shape and strength.

Vacuum equipment: Tungsten wire is used for heating elements in vacuum equipment because its hardness and high temperature stability enable it to work stably under vacuum conditions for a long time.

High-temperature furnaces: Tungsten wire is used to make high-temperature furnaces, crucibles, and heating elements because it does not soften or break easily at high temperatures.

Cutting and Welding: Tungsten wire is used for cutting metals and as an electrode for applications such as TIG welding. Its hardness ensures stable cutting and welding performance.