What Is the Corrosion Resistance of Tungsten Wire?

Tungsten wire is generally highly resistant to corrosion, especially at high temperatures. The following are the main features regarding the corrosion resistance of tungsten wire:

Chemical Stability: Tungsten is a chemically stable metal and is resistant to many acidic and alkaline solutions. At room temperature, it is not attacked by common acids such as sulfuric acid, hydrochloric acid and nitric acid.

High Temperature Stability: Tungsten’s high melting point (approximately 3422 degrees Celsius or 6192 degrees Fahrenheit) makes it stable at extremely high temperatures. This makes tungsten wire widely used in high temperature applications such as vacuum furnaces, high temperature heat treatments and chemical reactors.

Resistance to oxidation: Tungsten has strong resistance to oxidation at high temperatures. It forms a stable oxide layer that protects its surface from oxide attack.

Resistant to carbonization: Tungsten is also resistant to carbonization, which makes its application in high-temperature carbonizing atmospheres possible. This property is important for some heat treatments and the manufacture of refractory materials.

Chemical reactivity: Tungsten is relatively stable at normal temperatures and pressures, but may undergo chemical reactions under extreme conditions such as high temperatures and special gases in the atmosphere. Therefore, in some extreme environments, additional measures may be needed to protect the tungsten wire.