The main characteristics of tungsten wire are as follows:
High Melting Point: Tungsten has an extremely high melting point of about 3422°C, the highest of all metals, and is suitable for use in high temperature environments, such as incandescent bulbs and electron tubes.
High Density: The density of tungsten is 19.25 g/cm3, close to gold, which gives it high mechanical strength.
Excellent High Temperature Resistance: Tungsten wire can still maintain stable physical and chemical properties at high temperatures and is not easy to deform or melt.
Good Electrical and Thermal Conductivity: Tungsten wire has moderate electrical conductivity and good thermal conductivity, and is suitable for use as an electric heating element.
Corrosion Resistance: Tungsten has good corrosion resistance to most chemicals, especially in non-oxidizing environments.
High Hardness and Strength: Tungsten wire has high hardness and tensile strength, is wear-resistant, and is suitable for high-strength applications.
Low Thermal Expansion Coefficient: Tungsten wire has small thermal expansion at high temperatures and good dimensional stability.
Oxidizability: In a high-temperature oxidizing environment, tungsten wire easily reacts with oxygen to form oxides, so it is often necessary to use it under vacuum or inert gas protection.
