Beryllium Foil and Sheet
We supply high-purity beryllium foil and sheet (≥99%) for demanding scientific and industrial applications. Beryllium offers low density, high stiffness, excellent thermal stability, and exceptional X-ray transparency, making it ideal for X-ray systems, vacuum equipment, detectors, and precision instruments.
Standard thicknesses range from 12.5 µm to 10 mm, and materials can be fabricated into rectangular sheets, discs, or custom shapes according to customer requirements.
- Beamtek Beryllium Foil and Sheet
High purity ≥99% beryllium
Thickness range 12.5 µm – 10 mm
Ultra-thin beryllium foil down to 12.5 µm
Custom shapes and dimensions available
Surface finish can be polished to Ra < 100 nm
Multiple integrity grades available
Ideal for X-ray, vacuum, detector, and scientific applications
We supply high-purity beryllium foil and sheet (≥99%) for demanding scientific and industrial applications. Beryllium offers low density, high stiffness, excellent thermal stability, and exceptional X-ray transparency, making it ideal for X-ray systems, vacuum equipment, detectors, and precision instruments.
Standard thicknesses range from 12.5 µm to 10 mm, and materials can be fabricated into rectangular sheets, discs, or custom shapes according to customer requirements.
Technical Specification
Thickness Range
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Standard Range: 12.5 µm – 10 mm
Integrity Grades
PF-60 is available in three integrity classifications, each suitable for specific application requirements:
| Grade | Thickness Range | Description |
|---|---|---|
| Vacuum-Tight | 12.5 µm – 10 mm | Leak-tested and certified for vacuum environments |
| Optically-Dense | 12.5 µm – 10 mm | Blocks all visible light under high-intensity testing |
| Filter Grade | 12.5 µm – 10 mm | Supplied as-is; no optical or vacuum performance guaranteed |
Grade Specifications
✅ Vacuum-Tight
Each unit is leak-tested using a helium mass spectrometer.
Leak rate: ≤ 1.0 × 10⁻¹⁰ Pa·m³/sec of helium.
✅ Optically-Dense
No light transmission is permitted when the foil is illuminated with a high-intensity light source focused on one side, and observed from the opposite side in a darkened environment.
⚠️ Filter Grade
Material is delivered in its as-manufactured condition.
No guarantee of vacuum tightness or optical opacity.
Recommended for non-critical or filtration-based applications.
✂️ Available Shapes
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Rectangles
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Discs
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Custom shapes upon request