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Polyimide-Insulated Constantan® Thermocouple Wire

Available Configurations

Properties common to all products in this list

Composition: Cu 55/Ni 45 Form: Insulated Wire Material: Copper/Nickel (Constantan®) UNS Number: C72100 Commodity: Alloys Insulation: Polyimide Thermocouple Compatibility: Type E / Type J / Type T (-)
Polyimide-Insulated Constantan® Thermocouple Wire is designed for temperature measurements in high-temperature and chemically challenging environments. Its polyimide insulation provides excellent thermal stability, supporting applications up to 260–300°C, depending on conditions. Commonly used in aerospace, industrial processes, and materials testing, the wire offers stable thermoelectric properties and high durability, ensuring reliable temperature monitoring (±1–2°C accuracy). It is widely applied in automotive testing, electronic component monitoring, and thermometry systems. Researchers use this wire for temperature calibration, sensor technology development, and thermal analysis in precision applications for laboratories and manufacturing.

Health hazard/Hazardous to the ozone layer

Serious health hazard

Starting at $186.00 each
No Minimum order Free technical support *Free delivery worldwide

Material Properties

Mechanical Properties
Element Value
Hardness - Brinell 100-300
Elongation at break( % ) 45
Modulus of elasticity( GPa ) 162
Izod impact strength( J m⁻¹ ) 107
Tensile strength( MPa ) 400-590
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 52
Temperature coefficient( K⁻¹ ) 0.00002+/-
Thermal Properties
Element Value
Maximum use temperature in air( C ) 500
Melting point( C ) 1225-1300
Thermal conductivity( W m⁻¹ K⁻¹ ) 19.5@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 14.9@20-100°C
Physical Properties
Element Value
Density( gcm⁻³ ) 8.9
each

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Available Configurations

Properties common to all products in this list

Composition: Cu 55/Ni 45 Form: Insulated Wire Material: Copper/Nickel (Constantan®) UNS Number: C72100 Commodity: Alloys Insulation: Polyimide Thermocouple Compatibility: Type E / Type J / Type T (-)

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Tolerances

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