Type N Thermocouple
Nicrosil Nisil thermocouple material for stable elevated-temperature measurement
Type N is a base-metal thermocouple type that uses Nicrosil as the positive leg and Nisil as the negative leg. It is often reviewed as an alternative to Type K where oxidation stability and drift resistance at elevated temperature are important.
Thermometrics manufactures Type N thermocouple assemblies as MI cable probes, high-temperature probes, head-style assemblies, wire sensors, and custom replacement parts built to drawing.
Common Type N RFQ details
Type N temperature range
Type N is commonly referenced for approximately -454°F to 2300°F (-270°C to 1260°C). The practical assembly rating depends on sheath alloy, atmosphere, probe diameter, insulation, junction style, and service life expectations.
Type N thermocouple material
Type N uses Nicrosil for the positive conductor and Nisil for the negative conductor. It is often selected where a base-metal thermocouple is needed but Type K drift or oxidation behavior is a concern.
Type N chart PDFs
When Type N is a strong fit
When to review alternatives
Type K remains common for broad industrial service. Noble-metal Type R, S, or B may be reviewed for cleaner very-high-temperature furnace applications. Type J, T, or E may be better for lower-temperature equipment already wired for those inputs.
Related thermocouple resources
Wire Sensors
Custom wire and cable thermocouple sensors for replacement and OEM work.
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