Idaho Laboratories Corporation > Thermocouple Wire Resistance Information

The following table shows the different wires available, and the resistance of each. Please note these are for reference only, as the actual measured values may vary.

Alloy Composition Resistance (Ω / cmf) Density(lb./in3) Tensile Strength - annealed (ksi) Suggested MAX Operating Temp (°F)
KP 90% Ni / 10% Cr 425 0.315 95 2300
KN 95%Ni / 5% (Mn,Si,Al,Co) 177 0.311 85 2300
JP 99.5% Fe 60 0.284 65 1400
JN 45% Ni / 55% Cu 300 0.322 60 1400
EP 90 % Ni / 10% Cr 425 0.315 95 1600
EN 45% Ni / 55% Cu 300 0.322 60 1600
TN 45% Ni / 55% Cu 300 0.322 60 700
NP 14% Cr / 1.5% Si / 84.5% Ni 585 0.307 90 2300
NN 4.5% Si / 95.5% Ni 215 0.314 65 2300
Alloy 11 1% Ni / 99% Cu 25 0.322 40 400
-information courtesy of Harrison Alloys
Print Chart    Download Wire_Resistance.xls

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