Description
🔍 Product Introduction
Tungsten Foil is a precision-rolled refractory metal sheet engineered for ultra-high temperature and vacuum environments. With a melting point of 3422°C and a density of 19.3 g/cm³, this material represents one of the most thermally stable metallic solutions available in modern industry.
Our production is carried out according to ASTM B760 requirements, ensuring consistent chemistry, dimensional accuracy, and microstructural stability. The supplied High Purity Tungsten Foil is widely used in vacuum furnace heat shields, semiconductor processing equipment, thin film deposition systems, and radiation shielding assemblies.
Because of its unique combination of density, temperature resistance, and structural integrity, This remains a preferred material for demanding industrial systems operating above 2000°C.
⚙ Technical Specifications
| Property | Typical Value |
|---|---|
| Standard | ASTM B760 |
| Purity | ≥ 99.95% |
| Density | 19.3 g/cm³ |
| Melting Point | 3422°C |
| Thickness Range | 0.01 – 0.5 mm |
| Width | Up to 300 mm |
| Condition | Rolled / Stress-Relieved |
Each batch of ASTM B760 Tungsten Foil is produced under strict metallurgical supervision to maintain uniform grain structure and controlled impurity levels.
🔥 Performance Advantages
◾ Ultra-High Temperature Resistance
Thanks to its extremely high melting point, Tungsten Foil maintains dimensional and mechanical stability in vacuum or inert atmospheres exceeding 2000°C. Compared to molybdenum-based materials, performance margins are significantly higher under extreme thermal loads.
◾ Low Vapor Pressure
At elevated temperatures, vaporization loss is minimal. This makes High Purity Tungsten Foil particularly suitable for semiconductor chambers and evaporation systems where contamination control is critical.
◾ Excellent Radiation Shielding
The high density of this material allows compact radiation attenuation structures. In medical and laboratory applications, Tungsten Foil offers efficient shielding without excessive thickness.
◾ Structural Strength in Thin Sections
Despite reduced thickness, rolled microstructure provides strong tensile behavior and resistance to deformation during assembly.
🏭 Manufacturing Process Control
Producing consistent Tungsten Foil requires advanced refractory metal processing technology.
• High-purity tungsten powder preparation
• Cold isostatic pressing
• High-temperature sintering
• Forging consolidation
• Controlled hot rolling
• Multi-pass cold rolling
• Stress-relief annealing
Deformation ratios are optimized to balance ductility and strength. The resulting High Purity Tungsten Foil exhibits uniform thickness and improved flatness.
Microstructural control reduces brittleness, which is a common challenge in refractory metal sheet production.
🧪 Chemical Composition (Typical)
| Element | Max (%) |
|---|---|
| W | ≥ 99.95 |
| Fe | ≤ 0.01 |
| Ni | ≤ 0.005 |
| Mo | ≤ 0.02 |
| O | ≤ 0.02 |
Strict impurity control ensures reliable high-temperature performance of ASTM B760 Tungsten Foil during prolonged service.
🏗 Major Industrial Applications
🔹 Vacuum Furnace Heat Shields
Multi-layer reflective assemblies rely on Tungsten Foil to reduce thermal radiation loss. Its reflective surface enhances furnace efficiency while maintaining structural integrity.
🔹 Semiconductor Equipment
In advanced semiconductor systems, thin refractory sheets are used for:
• Evaporation liners
• Thermal barrier plates
• Shielding structures
• Sputtering components
The thermal stability of High Purity Tungsten Foil prevents warping under continuous heating cycles.
🔹 Thin Film Deposition Systems
Precision-rolled material supports dimensional stability during high-temperature deposition processes.
🔹 Radiation Protection Assemblies
Due to density and atomic weight, Tungsten Foil is selected for compact radiation shielding components in medical and laboratory environments.
📐 Thickness & Supply Range
We provide Tungsten Foil in a wide thickness range:
| Thickness | Application Example |
|---|---|
| 0.02–0.03 mm | Semiconductor liners |
| 0.05 mm | Heat shielding |
| 0.1 mm | Structural backing |
| 0.2–0.5 mm | Furnace panels |
Custom slitting, shearing, and precision cutting are available. Material can be supplied in sheets or coils according to project requirements.
🆚 Comparison with Molybdenum Foil
| Property | Tungsten | Molybdenum |
|---|---|---|
| Melting Point | 3422°C | 2623°C |
| Density | 19.3 g/cm³ | 10.2 g/cm³ |
| Ultra-High Temperature Use | Excellent | Moderate |
For operations exceeding 2000°C, tungsten-based materials provide superior safety margins.
📦 Packaging & Handling
• Protective wrapping
• Moisture control packaging
• Vacuum sealing upon request
• Export wooden crates
Proper storage in dry conditions is recommended to maintain surface quality.
🏢 Industrial Supply Capability
✔ Stable refractory metal supply chain
✔ Precision rolling experience
✔ ASTM-compliant production
✔ Custom dimensions supported
✔ Global export capability
As part of our refractory metals portfolio, Tungsten Foil complements tungsten plate, molybdenum sheet, and other high-temperature materials supplied for industrial markets worldwide.
📞 Contact Information
📧 Email: sales@niticu.com
📞 Phone / WhatsApp / WeChat: +86 13335373172
🏭 Factory: Baotai Road Industrial Park, High-tech Zone, Baoji City, Shaanxi, China
🌐 Website: https://niticu.com
Contact our technical team for detailed specifications, quotation, and customization options.
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