T2 Thermocouple Alloy Foil (Ni95/(Al+Mn+Si)5)

T2 Thermocouple Alloy Foil (Ni95/Al/Mn/Si 5) combines excellent oxidation resistance, high-temperature stability, and consistent thermoelectric performance in a thin, flexible format. Its composition supports long-term accuracy in temperature measurement, particularly in environments subject to cyclic heating. Industries employ it in precision thermal sensing, heater panel fabrication, and calibration equipment manufacturing. Specific applications include laminated thermocouple strips for aerospace test rigs, thin heating foils for controlled atmosphere chambers, and temperature calibration plates for laboratory metrology. In research, it is utilized to study alloy oxidation kinetics, assess thermoelectric drift over prolonged use, and develop micro-scale heating and sensing devices. The foil format’s adaptability and the alloy’s thermal reliability make it an essential component for high-accuracy thermal engineering and advanced scientific instrumentation.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Foil

Thickness	<0.01mm	±25%
Thickness	0.01mm - 0.05mm	±25%
Thickness	>0.05mm	±10%

Material Properties for Alloys

Magnetic Properties

Element	Value
Maximum permeability	1.07

Mechanical Properties

Element	Value
Elongation at break( % )	<44
Modulus of elasticity( GPa )	220
Izod impact strength( J m⁻¹ )	108
Tensile strength( MPa )	550-780

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	29-33
Temperature coefficient( K⁻¹ )	0.0019

Thermal Properties

Element	Value
Maximum use temperature in air( C )	1100
Melting point( C )	1315-1390
Specific heat( J K⁻¹ kg⁻¹ )	446@23°C
Thermal conductivity( W m⁻¹ K⁻¹ )	30-32@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	16.8@20-1000°C