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