1. Ferrite
Ferrite shine ingantaccen bayani mai tsaka-tsaki wanda aka samar ta carbon wanda aka narkar da shi a cikin -Fe. Ana bayyana shi sau da yawa kamar ko F. Yana kula da tsarin alpha -Fe.Ferrite yana da ƙananan ƙwayar carbon, kuma kayan aikin injiniya yana kusa da waɗanda ke da ƙarfe mai tsabta, babban filastik da taurin, da ƙananan ƙarfi da taurin.
2. Austenite
Austenite ne A interstitial m bayani na carbon narkar da a -Fe, yawanci bayyana a matsayin ko A. Yana kula da fuska-tsakiyar cubic lattice tsarin na gamma-Fe.Austenite yana da mafi girma carbon solubility fiye da ferrite, da inji Properties suna halin da kyau plasticity, low ƙarfi, low taurin da sauki roba nakasawa.

3. Siminti
Cementite wani fili ne da aka samar da ƙarfe da carbon, wanda tsarin sinadaransa shine Fe3C.Ya ƙunshi 6.69% carbon kuma yana da tsarin crystal mai hadaddun.The siminti yana da tsayin daka sosai, matalauta filastik, kusan sifili, kuma yana da wuya da gaggautsa lokaci.
4. Pearlite
Pearlite wani nau'i ne na inji na ferrite da cementite, yawanci ana nunawa ta P.Matsakaicin adadin carbon na pearlite shine 0.77%, kuma kayan aikin injinsa yana tsakanin ferrite da cementite, tare da babban ƙarfi, matsakaicin ƙarfi da wasu filastik. Irin wannan tsarin ana kiransa pearlite mai siffar zobe, kuma cikakkiyar aikinsa ya fi kyau.
5. Ledeburite
Leutenite ne a inji cakuda austenite da cementite, yawanci bayyana a matsayin Ld.The talakawan carbon abun ciki na Leutenite ya 4.3% .Lokacin da sanyaya zuwa 727 ℃, da austenite a leustenite za a tuba zuwa pearlite.So kasa 727 ℃, leutenite kunshi pearlite da cementite, low zafin jiki da ake kira Leutenite. na Leutenite yana dogara ne akan siminti, don haka kaddarorin injinsa suna da wuya kuma suna da ƙarfi.