Thermocouple Alloys Experts
Our extensive knowledge of rare metals and the materials industry allow us locate and supply hard-to-find materials and to deliver finished to semi-finished parts at a competitive price.
Thermocouple Alloys
When certain dissimilar metals are joined, they produce a measureable electric current. The voltage produced is directly proportional to the temperature difference between the materials. When selecting thermocoupling alloys, it is important to keep in mind the application temperature range, environment, accuracy required and length of service. For more information on which alloy is best for you, contact a Leading Edge material specialist.
Alumel®
Used in conjunction with Chromel® in type K thermocouples, Alumel®1 is made of nickel, manganese, aluminum and silicon.
Chromel®
Used with Alumel® in type K thermocouples and with Constantan in type E thermocouples, Chromel®2 is made of nickel and chromium.
Constantan
Constantan is a copper-nickel alloy used in a variety of thermocouple applications. It is paired with iron, copper and Chromel® to form types J, T and E thermocouples, respectively. Known for its high electrical resistivity and its ability to perform consistently despite changes in temperature, Constantan is also widely used throughout the electronics industry.
Rhenium-Tungsten
For use in extremely high-heat environments, type C thermocouples are made from alloys containing different rhenium-tungsten ratios. Rhenium-Tungsten is also used in traditional tungsten applications when greater ductility is desired.
DON'T SEE WHAT YOU'RE LOOKING FOR? WE'LL FIND IT.
Find the product you're looking in our readily-available inventory or request a quote on a hard-to-find material. If it's not listed here, we can probably find it for you.
Explore Materials Request a Quote