Tungsten Disk

Formula: W

Form: Disk

Material: Tungsten

CAS Number: 7440-33-7

Commodity: Metals

Purity: 99.95%

Temper: As Rolled

Tungsten disks are part of our extensive range of disks and targets. With 44 variations available, they provide properties like high density, strength and hardness, while remaining somewhat brittle. Example applications of these disks include being used as high-speed rotating balance weights, kinetic energy penetrators, and X-ray shielding in medical and industrial settings. The range of sizes and thicknesses offered makes Tungsten disks suitable for prototyping, research and small-scale production.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

each

Tolerances

Disk

Thickness	>0.05mm	±10%
Thickness	<0.01mm	±25%
Thickness	0.01mm - 0.05mm	±15%

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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Tungsten Disk

Tolerances

Material Properties for Metals