Ductile iron bututu nau'in bututun ƙarfe ne.Bukatun ingancin simintin ƙarfe na bututu spheroidization sa iko don 1-3 (kudirin spheroidization "80%), don haka kayan aikin injiniya na kayan da kansu sun inganta, tare da yanayin ƙarfe, aikin ƙarfe.Annealed ductile baƙin ƙarfe bututu, da metallographic tsarin ne ferrite da karamin adadin pearlite, mai kyau inji Properties, m lalata juriya, mai kyau ductility, mai kyau sealing sakamako, sauki shigar, yafi amfani ga birni, masana'antu da ma'adinai Enterprises samar da ruwa, gas. mai da sauransu.
Ana rarraba takamaiman adadin graphite mai siffar zobe akan matrix ferrite da pearlite.Dangane da buƙatun diamita na ƙima da haɓakawa, adadin ferrite da pearlite a cikin matrix ya bambanta.Adadin pearlite a cikin ƙaramin diamita gabaɗaya bai wuce 20% ba, kuma a cikin babban diamita ana sarrafa shi kusan 25%.
Yana da yanayin baƙin ƙarfe, aikin ƙarfe, kyakkyawan aikin anticorrosion, mai kyau ductility, sakamako mai kyau na rufewa, mai sauƙin shigarwa, galibi ana amfani da shi don samar da ruwa na birni, masana'antu da ma'adinai, iskar gas, mai da sauransu.Shi ne zaɓi na farko na bututun samar da ruwa, tare da babban aiki mai tsada.Idan aka kwatanta da bututun PE, daga lokacin shigarwa, shigar da bututun tawada mai siffar zobe ya fi sauƙi da sauri fiye da bututun PE, kuma matsa lamba na ciki da na waje ya fi kyau bayan shigarwa;Daga ra'ayi na iska da anticorrosive, bayan shigar da bututun tawada mai siffar zobe yana da kyau, amma kuma ta hanyoyi daban-daban don inganta juriya na lalata;Dangane da aikin na'ura mai aiki da karfin ruwa, ƙayyadaddun bututun tawada na spheroidal gabaɗaya suna magana ne akan diamita na ciki, kuma ƙayyadaddun bututun PE gabaɗaya suna nufin diamita na waje, saboda a ƙarƙashin ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun bututun tawada na spheroidal na iya cimma ruwa mafi girma;Daga madaidaicin shigarwa da ra'ayi farashin kulawa, bututun tawada spheroidal yana da mafi girman aikin farashi.Ciki bango fesa zinc, siminti turmi anti-lalata kayan.