Technical Data Sheet
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Tungsten Square Single Crystal

Goodfellow offers a range of tungsten single crystals in square form across 30 variations. Single crystals like these are integral to research across disciplines, from physics to chemistry to materials science, because of their precisely controlled purity, grain-free structure, and orientation. For example, these tungsten monocrystals can be used as x-ray or neutron monochromators and analyzers due to their regular lattice and lack of defects. Other applications include electrodes and catalysts that leverage the exposed surface planes.
Formula: W
Percentage Purity: 99.99%
Thickness: 1mm
Size: 4x4mm
Orientation: -111
Orientation Accuracy: =< 0.5°
Polish: Polished
Surface Finish: =< 0.03µm Ra
CAS Number: 7440-33-7
UOM Code: 340-478-03
SKU: 1000143055
Product Code: W-00-SC-000243

Tolerances

Single Crystal
Orientation See Item
Thickness +2% / -1%
Length +2% / -1%
Square
Size +2% / -1%
No Minimum order Despatch of products in stock within 48 hours Free technical support *Free delivery worldwide
$2,123.30
each
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Tolerances

Single Crystal
Orientation See Item
Thickness +2% / -1%
Length +2% / -1%
Square
Size +2% / -1%
Technical Data Sheet
Safety Data Sheet

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Material Properties for Metals

Atomic Properties
Element Value
Atomic number 74
Crystal structure Body centred cubic
Electronic structure Xe 4f¹⁴ 5d⁴ 6s²
Valences shown 2,3,4,5,6
Atomic weight( amu ) 183.85
Thermal neutron absorption cross-section( Barns ) 18.5
Photo-electric work function( eV ) 4.55
Natural isotope distribution( Mass No./% ) 183/ 14.3
Natural isotope distribution( Mass No./% ) 182/ 26.3
Natural isotope distribution( Mass No./% ) 186/ 28.6
Natural isotope distribution( Mass No./% ) 180/ 0.1
Natural isotope distribution( Mass No./% ) 184/ 30.7
Atomic radius - Goldschmidt( nm ) 0.141
Ionisation potential( No./eV ) 1/ 7.98
Ionisation potential( No./eV ) 2/ 17.7
Mechanical Properties
Element Value
Material condition Soft
Material condition Hard
Poisson's ratio 0.28
Poisson's ratio 0.28
Bulk modulus( GPa ) 311
Bulk modulus( GPa ) 311
Tensile modulus( GPa ) 411
Tensile modulus( GPa ) 411
Hardness - Vickers( kgf mm⁻² ) 360
Hardness - Vickers( kgf mm⁻² ) 500
Tensile strength( MPa ) 550-620
Tensile strength( MPa ) 1920
Yield strength( MPa ) 550
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 5.4@20@20°C
Superconductivity critical temperature( K ) 0.0154
Temperature coefficient( K⁻¹ ) 0.0048@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV ) 1.12
Physical Properties
Element Value
Boiling point( C ) 5660
Density( gcm⁻³ ) 19.3@20°C
Thermal Properties
Element Value
Melting point( C ) 3410
Latent heat of evaporation( J g⁻¹ ) 4009
Latent heat of fusion( J g⁻¹ ) 192
Specific heat( J K⁻¹ kg⁻¹ ) 133@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 173@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 4.5@0-100°C
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