ʻO Kanthal AF kahi hao-chromium-aluminium alloy ferritic (FeCrAl alloy) no ka hoʻohana ʻana i nā mahana a hiki i 1300°C (2370°F). Hōʻike ʻia ka alloy e ke kūpaʻa oxidation maikaʻi loa a me ke ʻano kūpaʻa maikaʻi loa e hopena i ka lōʻihi ola element. ʻO nā noi maʻamau no Kanthal AF e like me nā mea hoʻomehana uila i nā umu ahi