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Composition: Au
Forme: Fil
Matériau: or
Numéro CAS: 7440-57-5
Catégorie: Precious Metals
La bobine de fil d'or est un produit de la gamme Goodfellow disponible en 333 variantes. Ductile, malléable, facile à travailler, résistant à la corrosion et à l'oxydation et excellent conducteur électrique et thermique, l'or est le métal noble par excellence. Le fil d'or est est couramment utilisé dans l'électronique et les connexions électriques. D'autres applications incluent la bijouterie, les appareils médicaux, l'aérospatiale et les équipements de traitement chimique où la durabilité et la conductivité sont essentielles.
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Tolerances

Fil
Diameter ±10%
Length +5% / -1%

Material Properties for Precious Metals

Atomic Properties
Element Value
Atomic number 79
Crystal structure Face centred cubic
Electronic structure Xe 4f¹⁴ 5d¹⁰ 6s¹
Valences shown 1,3
Atomic weight( amu ) 196.9665
Thermal neutron absorption cross-section( Barns ) 98.8
Photo-electric work function( eV ) 4.8
Atomic radius - Goldschmidt( nm ) 0.144
Ionisation potential( No./eV ) 1/ 9.22
Ionisation potential( No./eV ) 2/ 20.5
Mechanical Properties
Element Value
Material condition Soft
Material condition Hard
Poisson's ratio 0.42
Poisson's ratio 0.42
Bulk modulus( GPa ) 171
Bulk modulus( GPa ) 171
Tensile modulus( GPa ) 78.5
Tensile modulus( GPa ) 78.5
Hardness - Vickers( kgf mm⁻² ) 20-30
Hardness - Vickers( kgf mm⁻² ) 60
Tensile strength( MPa ) 130
Tensile strength( MPa ) 220
Yield strength( MPa ) 205
Yield strength( MPa ) -
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 2.20@20@20°C
Temperature coefficient( K⁻¹ ) 0.004@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV ) 0.74
Physical Properties
Element Value
Boiling point( C ) 3080
Density( gcm⁻³ ) 19.3@20°C
Thermal Properties
Element Value
Melting point( C ) 1064.4
Latent heat of evaporation( J g⁻¹ ) 1738
Latent heat of fusion( J g⁻¹ ) 64.9
Specific heat( J K⁻¹ kg⁻¹ ) 129@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 318@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 14.1@0-100°C

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    Formula: Pt90/Rh10
    Product Shape: Spooled
    Diameter: 0.005mm
    Length: 0.1m
    Outside Diameter: 0.025 - 0.1mm
    UOM Code: 000-066-13


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    Overall outside diameter approx 0.025mm - 0.1mm.
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    Percentage Purity: 99.9%
    Product Shape: Spooled
    Diameter: 0.005mm
    Length: 0.1m
    Coating: Silver coated
    Outside Diameter: 0.025 - 0.1mm
    CAS Number: 7440-06-4
    UOM Code: 020-269-65


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    Overall outside diameter approx 0.025mm - 0.1mm.
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