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Beryllium Foil (Light Tight)

Formula: Be
Form: Foil (Light Tight)
Material: Beryllium
CAS Number: 7440-41-7
Commodity: Metals
Light Tight: Light Tight
Hazard Pictogram: GHS06, GHS08
Beryllium Foil (Light Tight) is available in 29 variations, with thicknesses ranging from 0.025mm to 0.5mm. It’s known for its stiffness, high strength and low density, as well as excellent thermal conductivity while remaining electrically insulating. Typical applications of Beryllium Foil (Light Tight) include aircraft and aerospace components, x-ray windows and nuclear reactor moderators. The wide choice foils we offer allows you to select the ideal one for your specific application.
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Material Properties for Metals

Atomic Properties
Element Value
Atomic number 4
Crystal structure Hexagonal close packed
Electronic structure He 2s²
Valences shown 2
Atomic weight( amu ) 9.01218
Thermal neutron absorption cross-section( Barns ) 0.0092
Photo-electric work function( eV ) 3.4
Atomic radius - Goldschmidt( nm ) 0.113
Ionisation potential( No./eV ) 2/ 18.2
Ionisation potential( No./eV ) 1/ 9.32
Ionisation potential( No./eV ) 4/ 218
Ionisation potential( No./eV ) 3/ 154
Mechanical Properties
Element Value
Material condition Hard
Material condition Soft
Poisson's ratio 0.02
Poisson's ratio 0.02
Bulk modulus( GPa ) 110
Bulk modulus( GPa ) 110
Tensile modulus( GPa ) 318
Tensile modulus( GPa ) 318
Hardness - Vickers( kgf mm⁻² ) 150
Hardness - Vickers( kgf mm⁻² ) 200
Tensile strength( MPa ) 550
Tensile strength( MPa ) 310
Yield strength( MPa ) 345
Yield strength( MPa ) 240
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 3.3@20@20°C
Superconductivity critical temperature( K ) 0.026
Temperature coefficient( K⁻¹ ) 0.009@0-100°C
Physical Properties
Element Value
Boiling point( C ) 2470
Density( gcm⁻³ ) 1.848@20°C
Thermal Properties
Element Value
Melting point( C ) 1278
Latent heat of evaporation( J g⁻¹ ) 32470
Latent heat of fusion( J g⁻¹ ) 1350
Specific heat( J K⁻¹ kg⁻¹ ) 1825@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 201@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 12@0-100°C

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