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Formula: W
Form: Powder
Material: Tungsten
CAS Number: 7440-33-7
Commodity: Metals

Tungsten Powder

Tungsten (W) Powder is useful for developing tungsten-boride (W2B) composites, which are promising material for fusion reactor shielding due to their high load-bearing capacity and adaptability to complex shapes. Additionally, tungsten powder can be processed with surface bonding techniques to form magnetron targets, which enable the production of pure tungsten films with conductive properties, ideal for use in advanced electronic applications. Across various industries, Tungsten powder is widely industries for hard-facing and abrasion-resistant parts in mining, energy, and construction, as well as for high-temperature furnace components and electrical contacts in electronics and automotive sectors.
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Tolerances

Powder
Mean Particle Size Nominal
Minimum Particle Size Nominal
Maximum Particle Size Nominal
Maximum Particle Size Nominal
Particle Size D10 Nominal
Particle Size D50 Nominal
Particle Size D90 Nominal

Material Properties for Metals

Atomic Properties
Mechanical Properties
Electrical Properties
Physical Properties
Thermal Properties
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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