1. The ferrite
Ferrite ke motsoako o tiileng oa tharollo o entsoeng ke carbon e qhibilihisitsoeng ho -Fe. Hangata e hlalosoa e le kapa F. E boloka sebopeho se seholo sa li-cubic lattice tsa alpha -Fe.Ferrite e na le carbon content e fokolang, 'me thepa ea eona ea mechine e haufi le ea tšepe e hloekileng, polasetiki e phahameng le ho tiea, le matla a tlaase le boima.
2. The austenite
Austenite ke Tharollo e tiileng ea interstitial ea carbon e qhibilihisitsoeng ka -Fe, hangata e hlalosoang e le kapa A.E boloka sebopeho sa li-cubic lattice tse bohareng ba sefahleho sa gamma-Fe.Austenite e na le carbon solubility e phahameng ho feta ferrite, 'me thepa ea eona ea mechine e khetholloa ka polasetiki e ntle, matla a tlaase, thata e tlaase le deformation e bonolo ea polasetiki.

3. Semente
Cementite ke motsoako o entsoeng ka tšepe le k'habone, oo lik'hemik'hale tsa oona e leng Fe3C. E na le 6.69% ea carbon 'me e na le sebopeho sa kristale se rarahaneng. Samente e na le thata e phahameng haholo, polasetiki e fokolang, hoo e batlang e le zero,' me ke karolo e thata le e brittle. metsoako.
4. Pearlite
Pearlite ke motsoako oa mochine oa ferrite le cementite, hangata o hlalosoang ke P. Ka karolelano carbon content ea pearlite ke 0.77%, 'me thepa ea eona ea mechine e pakeng tsa ferrite le cementite, e nang le matla a phahameng, boima bo itekanetseng le polasetiki e itseng. Mofuta ona oa sebopeho o bitsoa spherical pearlite, mme ts'ebetso ea eona e felletseng e betere.
5. Ledeburite
Leutenite ke motsoako oa mechine oa austenite le cementite, hangata o hlalosoang e le Ld. Ka karolelano carbon content ea Leutenite e ne e le 4.3%.Ha e pholile ho 727 ℃, austenite ka leustenite e tla fetoloa pearlite.Kahoo ka tlase ho 727 ℃, leutenite e na le pearlite, e bitsoang low, leutenite le leutenite. microstructure ea Leutenite e thehiloe holim'a cementite, kahoo thepa ea eona ea mechine e thata ebile e brittle.