Polyimide-Insulated T1 Thermocouple Wire (Ni90/Cr10)

Polyimide-Insulated T1 Thermocouple Wire (Ni90/Cr10) combines the high-temperature sensing capability, oxidation resistance, and durability of type K thermocouple-grade nickel-chromium alloy with the thermal stability, dielectric strength, and chemical resistance of polyimide insulation. This makes it suitable for aerospace propulsion monitoring, high-temperature process control, and industrial furnace instrumentation. Applications include embedded sensors in turbine engines, continuous temperature mapping in metallurgical processing, and control loop wiring in glass manufacturing. In research, it is used for high-temperature calibration studies, thermal response modeling, and insulation performance evaluation under extreme cycling. The synergy of alloy performance and polyimide insulation ensures accurate, long-lasting temperature measurement in severe environments.

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Tolerance

Properties

Reference & Citations

Health hazard/Hazardous to the ozone layer

Serious health hazard

each

Tolerances

Insulated Wire

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

Material Properties for Alloys

Mechanical Properties

Element	Value
Elongation at break( % )	44
Modulus of elasticity( GPa )	186
Izod impact strength( J m⁻¹ )	108
Tensile strength( MPa )	620-780

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	70.6
Temperature coefficient( K⁻¹ )	0.00032

Thermal Properties

Element	Value
Maximum use temperature in air( C )	1100
Melting point( C )	1420
Thermal conductivity( W m⁻¹ K⁻¹ )	19@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	17.2@20-1000°C