Physical Properties of Tungsten Wire
High Melting Point: 3422°C (6192°F), the highest of all metals, suitable for high-temperature environments.
High Hardness: Vickers hardness up to 3430 MPa, excellent performance in high-stress environments.
Low Coefficient of Expansion: 4.5 x 10^-6/K (20°C to 1600°C), minimal deformation with temperature changes.
High Density: 19.25 g/cm³, very close to gold, exhibiting high weight and stability.
Chemical Properties
Good Electrical and Thermal Conductivity: Electrical conductivity of 18.2 x 10^6 S/m and thermal conductivity of 173 W/m·K, ensuring excellent electrical and heat dissipation performance.
Corrosion Resistance: Performs well in most acidic and alkaline environments, suitable for various corrosive environments.
Mechanical Properties
High Strength: Tensile strength of 1510 MPa at room temperature, capable of withstanding high loads.
Excellent creep resistance: Maintains shape and performance over long periods under high temperature and pressure conditions.
Applications of Tungsten Wire:
Electronic devices:
Vacuum tubes and electron tubes: Used for cathode and gate materials.
Semiconductor equipment: Used for interconnects in semiconductor chips.
Lighting:
Incandescent filaments: High melting point and luminous efficiency make them widely used in incandescent lamps.
High-temperature furnaces:
Heating elements: Operate stably in high-temperature furnaces for extended periods.
Medical equipment:
Radiotherapy: Used as targets in X-ray and gamma-ray equipment.
Electrode materials: Used in devices such as pacemakers.
Aerospace:
Propulsion systems: Used to manufacture high-temperature components for rocket engines.
Protective materials: Used in protective armor and thermal protection systems.
Chemical industry:
Catalyst supports: Catalyst supports in high-temperature and high-pressure reactions.
Chemical equipment components: Used to manufacture chemical equipment components that operate under high temperature and pressure.
Post time: Mar-16-2026