Beryllium (Be) Foil
  • Beryllium (Be) Foil

Beryllium (Be) Foil | ALB-Be-F

Item No.: ALB-Be-F. Beryllium (Be) Foil is made of beryllium metal with purity over 98.5%. Size available: 0.02mm-3mm Thickness.

Standard Beryllium Foil List

Product Name Size Inquiry
Beryllium Foil 15mm dia. x 0.05mm thick Inquiry
Beryllium Foil 25.4mm dia. x 0.05mm thick Inquiry
Beryllium Foil 30mm dia. x 0.05mm thick Inquiry
Beryllium Foil 15mm dia. x 0.1mm thick Inquiry
Beryllium Foil 25.4mm dia. x 0.1mm thick Inquiry
Beryllium Foil 30mm dia. x 0.1mm thick Inquiry

Beryllium (Be) Foil/Sheet Description:

Beryllium (Be) is a brittle, steel-gray alkaline earth metal. It is strong, lightweight, and has a modulus of elasticity 50% greater than steel. It is non-magnetic properties and has higher specific heat than any metal. Beryllium retains excellent properties at elevated and cryogenic temperatures, making this fascinating metal an ideal thermal conductor. 

Because Beryllium is strong, stable, can handle elevated levels of heat resistance and is highly transparent to x-rays, beryllium, in thin foil form, has long been critical to the operation of medical and scientific x-ray equipment. Beryllium foil provides the window through which tissue-penetrating x-rays are focused, while maintaining the vacuum inside the x-ray tube generator.

The typical Beryllium foil could be as thin as 0.02mm and 100% tested for vacuum tight. The foils are supplied cut to shapes such as discs, rectangles, and other custom shapes.


Beryllium (Be) Foil/Sheet Specification:

Purity: 98.5%

Be Fe Al Si
>98.5% <0.115% <0.0068% <0.0058%
BeO Be2C Mg Mn
<1.00% <0.021% <0.0021% <0.005%

Thickness: 0.02mm-0.1mm(Foil); 0.1-3.0mm(Sheet)
Shape: Round disc, Rectangle or Custom-made

Vacuum-Tight: No detectable leakage - Tested by a sensitivity of 1x10-9 atm-cc/sec helium mass spectrometer leak detector.

Surface condition: Uniform in quality and condition, clean, sound, and free from foreign materials, or internal and external imperfections 0.45μm Ra or better surface finish.


Shape Thickness(mm) Diameter(mm)
Round 0.02-0.5 ≤50
0.5-2.0 ≤100
2.0-3.0 ≤150


Shape Thickness(mm) Width(mm) Length(mm)
Rectangle 0.02-0.1 ≤50 ≤50
0.1-0.5 ≤80 ≤150
0.5-2.0 ≤100 ≤200
2.0-3.0 ≤150 ≤300

Tolerance of Round Sheet/Foil:

Diameter(mm) Tolerance(mm) Thickness(mm) Tolerance(mm)
≤50 +0/-0.2 0.02-0.05 -/+0.005
≤100 +0/-0.3 ≥0.05-0.1 -/+0.01
≤100 +0/-0.3 ≥0.1-0.2 -/+0.02
≤100 +0/-0.3 ≥0.2-0.5 -/+0.03
≤150 +0/-0.4 ≥0.5-1.0 -/+0.05
≤150 +0/-0.4 ≥1.0-1.5 -/+0.1

Tolerance of Rectangle Sheet/Foil(mm):

Thick T+/- W(mm) W+/- L(mm) L+/-
0.02-0.05 -/+0.005 ≤50 +0/-0.2 ≤50 +0/-0.2
≥0.05-0.1 -/+0.01 ≤100 +0/-0.3 ≤100 +0/-0.3
≥0.1-0.2 -/+0.02 ≤100 +0/-0.3 ≤150 +0/-0.4
≥0.2-0.5 -/+0.03 ≤100 +0/-0.3 ≤150 +0/-0.4
≥0.5-1.0 -/+0.05 ≤100 +0/-0.3 ≤200 +0/-0.45
≥1.0-1.5 -/+0.1 ≤100 +0/-0.3 ≤200 +0/-0.45


Beryllium (Be) Foil/Sheet Applications:

  • Beryllium is used to manufacture x-ray tubes and detectors in high-resolution medical radiography.
  • Used for aerospace and military applications due to its lightweight properties, low density, and high thermal conductivity.
  • Used as a material in acoustic applications for its damping properties and high stiffness-to-weight ratio
  • added as an alloying element to aluminium, copper (notably the alloy beryllium copper), iron or nickel beryllium improves many physical properties. Tools made of beryllium copper alloys are strong and hard and do not create sparks when they strike a steel surface.


Beryllium (Be) Foil/Sheet Packaging:
Our Beryllium (Be) Foil are carefully packed to prevent damage during storage & transportation.

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Data sheet

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