Technical Data Sheet
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Tungsten Straight Wire

Tungsten straight wire is a product offered by Goodfellow as part of their range of wire materials. Tungsten has excellent high temperature strength, with a melting point of 3422°C. It also has high density, around 19.3 g/cm3. Tungsten wire's unique properties make it ideal for filaments in incandescent light bulbs, as well as heating elements in high temperature furnaces. The straight wire form allows for straightforward integration into end applications like heating coils. With its combination of high temperature resistance and high density, Goodfellow's tungsten wire provides versatile solutions for demanding environments.
Percentage Purity: 99.9%
Diameter: 0.8mm
Length: 0.1M
Technical Name: Tungsten
Formula: W
Density: 19.3g/cm³
CAS Number: 7440-33-7
Product Shape: Straight Wire
UOM Code: 615-130-73
SKU: 1000202588
Product Code: W-00-WR-000158

Tolerances

Wire
Diameter ±10%
Length +5% / -1%
No Minimum order Despatch of products in stock within 48 hours Free technical support *Free delivery worldwide
$281.14
each
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Tolerances

Wire
Diameter ±10%
Length +5% / -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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