1. The ferrite
Ferrite bụ ngwọta siri ike n'etiti etiti nke carbon gbazere na -Fe. A na-egosipụtakarị ya dị ka ma ọ bụ F.Ọ na-edobe usoro nhazi nke cubic lattice nke alpha -Fe.Ferrite nwere obere carbon, yana ihe eji arụ ọrụ ya dị nso na ígwè dị ọcha, nnukwu plasticity na siri ike, na ike dị ala na ike.
2. The austenite
Austenite bụ A interstitial siri ike ngwọta nke carbon etisasịwo na -Fe, a na-egosipụtakarị dị ka ma ọ bụ A.Ọ na-ejigide ihu-gbadochiri cubic lattice Ọdịdị nke gamma-Fe.Austenite nwere elu carbon solubility karịa ferrite, na ya n'ibu Njirimara na-ji ezi plasticity, ala ike, ala ike ike na mfe plastic deformation.

3. cimentite
Cementite bụ ngwakọta nke ígwè na carbon na-emepụta, nke usoro ya bụ Fe3C. Ọ nwere 6.69% carbon ma nwee usoro kristal dị mgbagwoju anya. The cementite nwere nnukwu ike siri ike, plasticity na-adịghị mma, fọrọ nke nta ka ọ bụrụ efu, na nke siri ike na nke na-agbaji agbawa. Cementite na-arụ ọrụ ike na carbon steel.
4. Pearlite
Pearlite bụ ngwakọta ígwè ọrụ nke ferrite na cementite, nke a na-egosipụtakarị P. Nkezi nke carbon ọdịnaya nke pearlite bụ 0.77%, na ihe eji arụ ọrụ ya dị n'etiti ferrite na cementite, nke nwere ike dị elu, ike siri ike na ụfọdụ plasticity. Site na ọgwụgwọ okpomọkụ, a na-ekesa cementite n'ụdị granular na matrix ferrite. A na-akpọ ụdị usoro a pearlite sppherical, na arụmọrụ ya zuru oke ka mma.
5. Ledeburite
Leutenite bụ a n'ibu ngwakọta nke austenite na cementite, na-emekarị na-egosipụta dị ka Ld.The nkezi carbon ọdịnaya nke Leutenite bụ 4.3%.Mgbe mma ka 727 ℃, na austenite na leustenite ga-converted n'ime pearlite.Ya mere n'okpuru 727 ℃, leutenite mejupụtara pearlite na cimentite na obere okpomọkụ na-akpọ "Lutenite". nke Leutenite dabeere na cimentite, ya mere ihe eji arụ ọrụ ya siri ike ma sie ike.