High temperature thermocouples

Kamet offers thermocouples specifically designed for hazardous environments. The high temperature thermocouples that can withstand the extreme temperatures in these environments are usually Type R, S, B, C or D thermocouples. Sheath materials that are produced for these high temperature applications are Molybdenum, Tantalum, Tungsten 3% Rhenium, Pt10%Rh and Pt20%Rh.

Industrial uses of high temperature thermocouples

Ultra high temperature thermocouples find extensive industrial applications, particularly in demanding environments such as high temperature vacuums furnaces, reducing or inert atmospheres.

These atmospheres present unique challenges.

Discover the optimal thermocouple solutions for your specific environment, enhancing performance and safety in high-temperature applications.

High temperature thermocouples are indispensable tools across various industries and sectors such as:

There are situations where thermocouples have to withstand a combination of environments. We are happy to help with specific advice for your unique process and environment.  Get in contact.

Thermocouple wires for extreme temperatures

While platinum thermocouples have their limitations, exotic thermocouples like type C and D are specifically designed to excel in temperatures and conditions that surpass platinum’s capabilities.

Avoid usage of type C and type D thermocouple wires are in the presence elevated temperatures in oxygen, nitrogen or hydrogen due to embrittlement.

Type C and D

Tungsten Rhenium alloy thermocouples are used up to 2871°C.

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Type S

The temperature range of type S, Pt10%Rh-Pt thermocouples is -50°C up to +1450°C.

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Type R

The temperature range of type R, Pt10%Rh-Pt thermocouples is -50°C up to +1450°C.

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Type B

The temperature range of type B, Pt30%Rh-Pt6%Rh is 870°C up to +1700°C.

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Transition style thermocouples

When exotic applications require long thermocouples with expensive noble metal or refractory sheaths, ARi can supply custom made transition style thermocouples for substantial cost savings. 

Thermocouples can be supplied with suitable high temperature “hot section” sheath and insulating materials long enough to reach a cooler zone in the furnace or reactor. At this point, a brazed transition can be made to a less expensive thermocouple or compensating material with Inconel 600 or stainless-steel sheath.

Why choose for
ultra high temperature thermocouples from Kamet?

  • Suitable for temperatures up to 2200°C
  • Suitable for vacuum, inert, oxidizing and reducing atmospheres.
  • Wide variety of termination options available
  • Long term stability
  • Various additional tests available to validate integrity. Like special non-destructive testing with ARi Industries standards.
  • Robust hot junction on Type C & D through patented wire wrap / welding procedure
  • Custom material combination and sizes to meet demanding applications
  • Transition style thermocouples available to reduce costs

More high temperature thermocouple articles

In need of high temparature thermocouples?

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