These thermocouples are equipped with protective sheaths made of materials such as molybdenum, tantalum, and Inconel, and feature insulators made of alumina, hafnia, and magnesium oxide. Type E Type E thermocouples feature chromel (a nickel-chromium alloy) as the positive leg and constantan (a ...
Molybdenum, Tungsten, and TantalumRefractory metals such as tungsten and molybdenum exhibit properties similar to graphite when used as heating elements. Among these metals, tungsten can operate at the highest temperatures but is also the most expensive. Molybdenum, while less costly and more commonly...