Ana yin bututun tukunyar tukunyar ƙarami da matsakaita da ingots ko ƙwanƙwaran billet waɗanda aka huɗa don samar da bututun burr, sannan a yi birgima mai zafi, birgima ko sanyi.Bututun ƙarfe mara nauyi yana da matsayi mai mahimmanci a masana'antar bututun ƙarfe na kasar Sin.Bisa kididdigar da ba ta cika ba, kamfanonin samar da bututun na kasar Sin fiye da 240, fiye da na'urar bututun karfe kusan 250, yawan aikin da ake samarwa a shekara na fiye da tan miliyan 4.5.Daga ma'anar ma'auni, <φ76, lissafin 35%, <φ159-650, lissafin 25%.Dangane da nau'ikan nau'ikan, ton miliyan 1.9 na bututu masu manufa na gaba ɗaya, suna lissafin 54%;Ton 760,000 na bututun mai, wanda ya kai 5.7%;150,000 tons na ginshiƙai na hydraulic, bututu masu dacewa, lissafin 4.3%;bututun bakin ruwa, bututu masu ɗaukar nauyi, bututun mota jimlar tan 50,000, suna lissafin 1.4%.
Low da matsakaici matsa lamba tukunyar jirgi tube inji Properties: tensile ƙarfi σb (MPa): ≥ 410 (42) yawan amfanin ƙasa ƙarfi σs (MPa): ≥ 245 (25) elongation δ5 (%): ≥ 25 sashi shrinkage ψ (%): ≥ 5 , Tauri: ba zafi magani, ≤ 156HB, samfurin size: samfurin size 25mm zafi magani bayani dalla-dalla da metallographic kungiyar: zafi magani bayani dalla-dalla: al'ada, 910 ℃, Air sanyaya.Ƙungiyar Metallographic: ferrite + pearlite.
Matsakaici da ƙananan matsa lamba bututun kisa: GB3087-1999 bututun ƙarfe mara ƙarfi don ƙaramin tukunyar tukunyar jirgi da matsakaici.
Matsakaici da ƙananan bututun tukunyar jirgi suna da zafi birgima da sanyi ja (birgima) bututu marasa ƙarfi na babban ingancin tsarin ƙarfe na carbon da aka yi amfani da shi don yin bututun tururi mai zafi, bututun ruwa mai birgima da bututun tururi mai zafi don tukunyar jirgi, manyan bututun hayaki, ƙananan bututun hayaki da baka. bututun bulo don sassa daban-daban na ƙananan da matsakaicin matsa lamba.An fi amfani da su don injinan dafa abinci na masana'antu da na'urori masu rai don jigilar ƙananan bututun ruwa mai matsa lamba.Kayan wakilci shine karfe 10 da 20 na ma'auni.
