Tungsten rods, bars, and sheets are solid forms of high-purity tungsten metal and engineered tungsten composites designed for extreme environments. Tungsten’s exceptional density, ultra-high melting point, stiffness, and thermal stability make these products indispensable in high-temperature, high-mass, and precision engineering applications.
Product Forms
Rods & Bars – Cylindrical or rectangular sections used as
machinable blanks, structural elements, and precision components.
Sheets & Plates – Flat tungsten products used for radiation
shielding, heat spreaders, and high-temperature surfaces.
Composition & Chemistry
Pure Tungsten
≥ 99.95% up to 99.999% W with extremely low interstitial impurities (O, C, N).
Composite & Alloy Forms
• Tungsten–Copper (WCu): improved conductivity and machinability
• Tungsten Heavy Alloys (W–Ni–Cu): improved toughness and fabrication behavior
Key Physical Properties
| Property | Pure Tungsten | Notes |
|---|---|---|
| Density | ~19.3 g/cm³ | Extremely high mass per volume |
| Melting Point | ~3410 °C | Highest of all pure metals |
| Thermal Conductivity | ~160 W/m·K | Excellent heat spreading |
| Thermal Expansion | ~4.3–4.5 µm/m·K | Outstanding dimensional stability |
| Electrical Resistivity | ~5.6 µΩ·cm | Good electrical performance |
Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength | ~750 MPa (processing dependent) |
| Elastic Modulus | ~411 GPa |
| Vickers Hardness | ~3430 MPa |
| Poisson’s Ratio | ~0.28 |
Metallurgical Behavior
• Crystal structure: Body-Centered Cubic (BCC)
• Retains strength at extreme temperatures
• Brittle at room temperature — forging & swaging improve ductility
• Alloying and composite infiltration enhance machinability
Manufacturing & Processing
Produced primarily via powder metallurgy followed by sintering, forging, swaging, and precision machining. Tungsten-copper products are manufactured by copper infiltration of a tungsten skeleton.
Available Forms
✔ Precision rods and bars
✔ Flat sheets and plates
✔ Ground, forged, or swaged finishes
✔ Custom blanks and near-net shapes
Key Characteristics
✔ Extreme heat resistance
✔ Exceptional density and stiffness
✔ Low thermal expansion
✔ Long service life in harsh environments
✔ Composite options for improved machinability
Applications
Industrial
High-temperature furnace components, tooling, heating elements
Aerospace & Defense
Rocket components, counterweights, vibration damping bars
Scientific & Medical
Radiation shielding, vacuum and electron-beam components
Electrical & Electronics
Electrodes, contact rods, thermal spreaders (WCu)
Advantages
✔ Operates where most metals fail
✔ Maximum density in compact form
✔ High mechanical stiffness
✔ Excellent thermal and electrical options
✔ Customizable dimensions and tolerances
Why Choose Tungsten Rods, Bars & Sheets?
Choose tungsten products when extreme temperature resistance, high mass, dimensional stability, and long-term reliability are essential.