Sandvik's Kanthal-branded materials and systems have long been the standard solution for electrical heating elements when it comes to FeCrAl (Kanthal) and NiCrFe (Nikrothal) metallic alloys as well as Super (MoSi_2) and Globar (SiC) ceramic heating elements. For thermal processing and process heating, Kanthal APM and Kanthal APMT are more recent additions. Development is taking another step by introducing APMT for components like retorts for PM sintering, furnace rollers and other furnace components. Traditionally, wrought or cast Ni-based alloys are commonly used for high-temperature constructions, but their limited oxidation resistance above 1000-1100℃ (1832-2012℉) and sensitivity to carburizing is a problem in many high-temperature industrial processes. Conventional wrought high-temperature alloys are far superior in this respect, with oxidation resistance up to almost 1400℃ (2552℉) due to their ability to form a very slow-growing and protective alumina scale during service. The drawback of these alloys is relatively low mechanical strength at high temperatures, which strongly limits their application in mechanically stressed components.
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