Tungsten (W)
W 99.95%+
The metal with the highest melting point. Exceptional strength at extreme temperatures, superior density, and excellent radiation shielding capabilities.
Material Properties
Tungsten possesses the highest melting point and lowest vapor pressure of all metals, making it ideal for the most demanding high-temperature applications. Its exceptional density provides superior radiation shielding and counterweight applications.
Applications
- Lighting filaments and electrodes
- X-ray and radiation shielding
- High-temperature furnace elements
- Electrical contacts and electrodes
- Aerospace and rocket nozzles
- Sputtering targets for thin film deposition
- Counterweights and balancing weights
- Welding electrodes (TIG welding)
- Glass-to-metal seals
- Ion implantation components
Available Grades
Pure Tungsten (W)
99.95%+ purity for general high-temperature applications and radiation shielding.
Doped Tungsten (WL/WT)
Lanthanum or thorium oxide doped for improved electron emission and arc stability.
Potassium-Doped (AKS)
Non-sag tungsten with improved high-temperature creep resistance for lighting applications.
Available Forms
Technical Notes
- Tungsten becomes brittle below its ductile-to-brittle transition temperature (DBTT), typically 200-400°C depending on processing.
- Oxidation begins at approximately 400°C in air. Protective atmospheres or vacuum required at elevated temperatures.
- Machining should be performed with carbide or diamond tools. EDM (Electrical Discharge Machining) is often preferred for complex shapes.
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