I-Ductile cast iron iwuhlobo lwensimbi enamandla kakhulu eyakhiwe ngeminyaka yawo-1950.Ukusebenza kwayo okuphelele kuseduze nensimbi.Isekelwe ekusebenzeni kwayo okuhle kakhulu ukuthi isetshenziswe ngempumelelo ukusakaza izingxenye ezithile ngamandla ayinkimbinkimbi, amandla aphezulu, ukuqina nokumelana nokugqoka.I-Ductile iron ithuthuke ngokushesha yaba into esetshenziswa kabanzi yensimbi eyinsimbi yesibili emva kwensimbi empunga.Okubizwa ngokuthi "insimbi esikhundleni sensimbi", ikakhulukazi ibhekisela ku-ductile iron.

Insimbi eyi-Ducular iyi-graphite eyindilinga ngokusebenzisa i-spherulation kanye nokwelashwa kokumitha, okuthuthukisa ngempumelelo izakhiwo zemishini ye-cast iron, ikakhulukazi ipulasitiki nokuqina, ukuze kutholwe amandla aphezulu kune-carbon steel.

I-Cast iron iwukuqukethwe kwekhabhoni engaphezu kuka-2.11% we-iron carbon alloy, ngensimbi yengulube yezimboni, insimbi eyi-scrap kanye nezinto zayo zengxubevange ngemuva kokuncibilika kwezinga lokushisa eliphezulu nokubunjwa kokubunjwa, ngaphezu kwe-Fe, ikhabhoni nezinye insimbi ephonswe ngesimo segraphite, uma ukuna kwe-graphite strip yensimbi ewuquqaba ebizwa nge-grey cast iron noma i-grey cast iron, i-worm cast iron ebizwa ngokuthi i-worm inki iron, iqembu lensimbi esakazwayo elibizwa nge-white cast iron noma i-code iron, kanye nensimbi eyindilinga ebizwa nge-spherical inki cast iron.

Ukwakheka kwamakhemikhali ensimbi ye-ductile ngaphandle kwensimbi ngokuvamile kuvame: okuqukethwe kwekhabhoni 3.0 ~ 4.0%, okuqukethwe kwe-silicon 1.8 ~ 3.2%, i-manganese, i-phosphorus, isamba sesibabule asidluli u-3.0% kanye nenani elifanele lomhlaba ongavamile, i-magnesium nezinye izakhi ze-globtized.