Ii-Alloys ze-Aluminium ze-Iron Chrome
Ii-alloy ze-Iron Chrome Aluminium (FeCrAl) zizinto ezinokumelana okuphezulu ezisetyenziswa rhoqo kwiindawo ezinobushushu obuphezulu bokusebenza ukuya kuthi ga kwi-1,400°C (2,550°F).

Ezi alloys zeFerritic zaziwa ngokuba namandla aphezulu okulayisha umphezulu, ukumelana okuphezulu kunye noxinano oluphantsi kunezinye iindlela zeNickel Chrome (NiCr) ezinokuguqulela ekubeni zizinto ezincinci ekusetyenzisweni nasekugcineni ubunzima. Amaqondo obushushu aphezulu okusebenza anokukhokelela kubomi obude bezinto. Ii-alloys ze-aluminium ze-Iron Chrome zenza i-Aluminium Oxide (Al2O3) engwevu ekhanyayo kumaqondo obushushu angaphezu kwe-1,000°C (1,832°F) eyonyusa ukumelana nokugqwala kwaye isebenza njengesigqubutheli sombane. Ukwakheka kwe-oxide kuthathwa njengokuzigquma kwaye kukhusela ukujikeleza okufutshane xa kuthe kwadibana isinyithi nesinyithi. Ii-alloys ze-aluminium ze-Iron Chrome zinamandla aphantsi oomatshini xa kuthelekiswa nezinto zeNickel Chrome kunye namandla aphantsi okuqhekeka.