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PTFE-Insulated Silver Wire

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Composition: Ag Form: Insulated Wire Material: Silver CAS Number: 7440-22-4 Commodity: Precious Metals Purity: 99.99% Insulation: PTFE (Polytetrafluoroethylene)
PTFE-Insulated Silver Wire combines silver’s highest electrical conductivity of all metals with PTFE’s exceptional dielectric properties, low friction, and resistance to heat and chemicals. The insulation ensures minimal signal loss, corrosion resistance, and reliability under high-frequency or high-voltage conditions. Industries use this wire in aerospace communication systems, precision instrumentation, and medical electronics. Specific applications include RF transmission lines, corrosion-proof sensor leads, and wiring for sterilizable diagnostic equipment. In research, it is used to study high-frequency propagation in polymer-insulated conductors, evaluate insulation behavior under rapid thermal cycling, and develop ultra-low-loss cables for sensitive measurement systems. The combination of silver’s conductivity and PTFE’s protection delivers unparalleled electrical performance for mission-critical applications.
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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 Purity: 99.99% Insulation: PTFE (Polytetrafluoroethylene)

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Tolerances

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