Description
🔩 Premium Ta-7.5W Plate – High-Temp Tantalum Tungsten Alloy for Vacuum Furnaces
The Ta-7.5W Plate is a high-performance refractory metal alloy composed of tantalum (Ta) and 7.5% tungsten (W) by weight. This alloy exhibits outstanding thermal stability, creep resistance, and corrosion resistance in high-vacuum, high-temperature, and chemically reactive environments. Engineered for applications that exceed the capabilities of pure tantalum, the Ta-7.5W alloy combines strength with excellent formability and long-term structural integrity under severe operating conditions.
✅ Key Features
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Excellent High-Temperature Strength
Maintains mechanical performance up to 2600°C in vacuum and oxidation resistance in inert atmospheres. -
Enhanced Creep & Recrystallization Resistance
Outperforms pure tantalum in resisting grain growth and structural weakening at prolonged thermal exposure. -
Superior Corrosion Resistance
Highly resistant to hydrochloric acid, nitric acid, and other aggressive chemicals—ideal for demanding chemical processes. -
Stable Microstructure
Tungsten addition refines the alloy grain structure, minimizing deformation and extending service life in load-bearing and thermal cycling conditions. -
Vacuum Furnace Optimized
Specifically developed for components in vacuum heat treatment systems, sintering trays, and shielding structures.
⚙️ Typical Chemical Composition (wt%)
| Element | Content (%) |
|---|---|
| Tantalum (Ta) | ≥ 91.5 |
| Tungsten (W) | 7.0 – 7.9 |
| Oxygen (O) | ≤ 0.01 |
| Nitrogen (N) | ≤ 0.005 |
| Carbon (C) | ≤ 0.010 |
| Hydrogen (H) | ≤ 0.002 |
| Iron (Fe), Ni, Mo, Si | ≤ 0.01 (each) |
This composition ensures that the Ta-7.5W Plate can maintain mechanical integrity under extreme temperatures and pressures where standard refractory metals would deform or degrade.
📊 Mechanical Properties (Annealed Condition)
| Property | Typical Value |
|---|---|
| Tensile Strength | 550 – 700 MPa |
| Yield Strength | ≥ 450 MPa |
| Elongation | ≥ 20% |
| Hardness | 160 – 180 HV |
| Density | 16.5 g/cm³ |
| Melting Point | ~3020°C |
| Recrystallization | >1400°C |
Compared to pure tantalum, the Ta-7.5W Plate demonstrates superior strength retention at elevated temperatures, making it ideal for thermal shielding and high-load bearing parts in vacuum and inert atmospheres.
🧪 Available Specifications
| Parameter | Range or Options |
|---|---|
| Thickness | 0.5 mm – 20 mm |
| Width | Up to 300 mm |
| Length | Up to 1000 mm or per spec |
| Tolerance | As per ASTM F560 or tighter |
| Surface Finish | Ground, Polished, Hot Rolled, Pickled |
| Processing | Rolled and Annealed, Vacuum Degassed |
All plates are processed under strict quality control, including ultrasonic testing, chemical analysis (ICP-OES), and grain size evaluation upon request.
🏭 Applications
The Ta-7.5W Plate is designed for high-end industrial and scientific applications that demand materials capable of surviving:
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🔥 Vacuum furnace liners and shielding
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⚙️ Sintering boats, trays, and carrier systems
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🧪 Chemical process reactors and acid-resistant components
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🧲 Electronics-grade capacitor electrodes and ion sputtering targets
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🚀 High-temperature aerospace components and thermal protection systems
Because of its excellent combination of thermal stability and corrosion resistance, Ta-7.5W is also used in medical imaging, nuclear shielding, and X-ray source hardware.
🧾 Standards & Quality Assurance
Our Ta-7.5W Plates are produced in accordance with:
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ASTM F560 – Standard Specification for Unalloyed Tantalum and Tantalum Alloys for Surgical Implant Applications
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ASTM B708 – Specification for Tantalum and Tantalum Alloy Plate, Sheet, and Strip
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ROHS / REACH compliant materials available upon request
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Supplied with EN10204 3.1 Mill Test Certificates, with full traceability
📎 Review general Ta-W alloy properties here:
🔗 Total Materia – Refractory Alloy Database
📦 Packaging & Export
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🔒 Vacuum-sealed, oil-free or oil-coated options available
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📦 Packed in anti-shock foam and fumigated wooden boxes
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🛡 Labeling: Alloy, grade, heat number, thickness, and batch
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🌐 Export-optimized documentation including MSDS, inspection reports, and certificate of origin
📞 Contact Us
Need advanced refractory materials for your high-temperature system? Our Ta-7.5W Plate combines strength, durability, and corrosion resistance like no other alloy.
📧 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
📩 Request your custom quote or data sheet today — we respond within 24 hours worldwide.
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