High-Purity Tungsten Sheets (99.95%) | Custom Sizes & ASTM Standards

Product Name: High-Purity Tungsten Sheets & Plates  (W ≥ 99.95%)

Product Overview

Pure tungsten sheets are manufactured from ultra-high-purity tungsten powder (≥99.95%) via advanced powder metallurgy techniques, including isostatic pressing, sintering, hot/cold rolling, and precision cutting. These sheets exhibit exceptional thermal stability (melting point: 3410°C), high density (19.35 g/cm³), and superior corrosion resistance, making them indispensable in extreme environments.

Product Advantages

Structural and Design Advantages of Tungsten Plates
The structural integrity of our tungsten plate arises from advanced powder metallurgy techniques, including isostatic pressing and precise rolling processes, resulting in uniform grain structure and high density. This design approach facilitates predictable mechanical behavior under thermal cycling. Custom dimensioning capabilities and multiple surface finish options ensure adaptability within modular system designs, allowing engineers to tailor component attributes for seamless incorporation into assemblies that require controlled thermal expansion and dimensional stability.

Performance and Operational Value for End Users
From a performance perspective, our high purity tungsten sheets deliver exceptional thermal conductivity coupled with low vapor pressure, reducing operational risks in vacuum or high-temperature environments. Their high melting point and corrosion resistance extend service life and maintain structural integrity, lowering maintenance costs. These properties enhance usability for industries relying on precise thermal management and radiation protection, granting end users both reliability and predictable ROI through minimized downtime and regulatory compliance.

Key Specifications

• Purity: ≥99.95% W, with impurities ≤0.05% (single element ≤0.01%)
• Dimensions:
• Thickness: 0.05–50 mm (customizable).
• Width: 20–600 mm (standard).
• Length: Up to 2000 mm (customizable).

• Surface Finish: Alkali-washed, polished, or ground.

• Standards: ASTM B760, GB/T 3875.

Core Applications

• High-Temperature Furnaces: Heating elements, heat shields, and radiation shields.
• Electronics & Vacuum Devices: Components for electron tubes, emission cathodes, and X-ray targets.
• Semiconductor Industry: Base plates, ion implantation parts, and sputtering targets.
• Medical Field: X-ray diagnostic equipment, radiation shielding.
• Aerospace: Rocket engine nozzles and thermal insulation components.

Manufacturing Process

1. Isostatic Pressing: Tungsten powder is compacted into billets under high pressure.
2. Sintering: Billets are heated to near-melting temperatures for densification.
3. Rolling: Hot/cold rolling achieves precise thickness and surface quality.
4. Cutting & Finishing: Laser or waterjet cutting, followed by surface treatment (polishing/alkali washing).

Advantages

• High Thermal Conductivity: Efficient heat dissipation in furnaces.
• Low Vapor Pressure: Minimal material loss at elevated temperatures.
• Mechanical Strength: Withstands mechanical stress and thermal cycling.
• Customization: Tailored dimensions and surface finishes for specific applications.