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Polyimide-Insulated Silver Wire

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Composition: Ag Form: Insulated Wire Material: Silver CAS Number: 7440-22-4 Commodity: Precious Metals Insulation: Polyimide
Polyimide-Insulated Silver Wire unites the unmatched electrical conductivity and corrosion resistance of silver with the high thermal endurance and dielectric reliability of polyimide insulation. It is particularly valuable in aerospace, high-frequency electronics, and precision instrumentation where minimal signal loss and stability under harsh conditions are critical. Applications include RF transmission lines, high-reliability aerospace harnesses, and corrosion-resistant connectors for marine and chemical environments. In research, it is employed in studies on skin-effect behavior in high-frequency conductors, insulation degradation under thermal cycling, and long-term stability in corrosive atmospheres. The wire’s combination of electrical excellence and insulation resilience ensures consistent, high-performance operation in cutting-edge industrial and scientific systems.
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Material Properties

Atomic Properties
Element Value
Atomic number 47
Crystal structure Face centred cubic
Electronic structure Kr 4d¹⁰ 5s¹
Valences shown 1-2,2
Atomic weight( amu ) 107.8682
Thermal neutron absorption cross-section( Barns ) 63.8
Photo-electric work function( eV ) 4.7
Natural isotope distribution( Mass No./% ) 107/ 51.83
Natural isotope distribution( Mass No./% ) 109/ 48.17
Atomic radius - Goldschmidt( nm ) 0.144
Ionisation potential( No./eV ) 2/ 21.5
Ionisation potential( No./eV ) 1/ 7.58
Ionisation potential( No./eV ) 3/ 34.8
Mechanical Properties
Element Value
Material condition Hard
Material condition Soft
Poisson's ratio 0.367
Poisson's ratio 0.367
Bulk modulus( GPa ) 103.6
Bulk modulus( GPa ) 103.6
Tensile modulus( GPa ) 82.7
Tensile modulus( GPa ) 82.7
Izod toughness( J m⁻¹ ) 5
Hardness - Vickers( kgf mm⁻² ) 95
Hardness - Vickers( kgf mm⁻² ) 25
Tensile strength( MPa ) 330
Tensile strength( MPa ) 172
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 1.63@20°C
Temperature coefficient( K⁻¹ ) 0.0041@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV ) 0.74
Physical Properties
Element Value
Boiling point( C ) 2212
Density( gcm⁻³ ) 10.5@20°C
Thermal Properties
Element Value
Melting point( C ) 961.9
Latent heat of evaporation( J g⁻¹ ) 2390
Latent heat of fusion( J g⁻¹ ) 103
Specific heat( J K⁻¹ kg⁻¹ ) 237@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 429@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 19.1@0-100°C
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Available Configurations

Properties common to all products in this list

Composition: Ag Form: Insulated Wire Material: Silver CAS Number: 7440-22-4 Commodity: Precious Metals Insulation: Polyimide

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Tolerances

Insulated Wire
Conductor Diameter ±10%
Insulation Thickness Nominal
Length +5% / -1%