Bututun ƙarfe mara nauyi wani nau'in ƙarfe ne mai zagaye, murabba'i da rectangular tare da sashe mara kyau kuma babu haɗin gwiwa a kusa da bututun ƙarfe mara nauyi da aka yi da ƙarfe mai ƙarfi ko bututu mara ƙarfi ta hanyar huɗa, sannan kuma birgima mai zafi, birgima ko sanyi mai jan ƙarfe mara ƙarfi yana da sashin kulawa na tsakiya kuma ana amfani dashi sosai azaman bututun isar da ruwa.Idan aka kwatanta da ƙaƙƙarfan ƙarfe kamar zagaye na ƙarfe, bututun ƙarfe yana da lanƙwasa iri ɗaya da ƙarfi kuma yana da haske.Sashe ne na tattalin arziki karfe.Ana amfani da shi sosai a cikin kera sassan sassa da sassa na inji, kamar bututun mai rawar soja, bututun watsa mota, firam ɗin keke da bututun ƙarfe da ake amfani da su a cikin gini.
Na'ura mai aiki da karfin ruwa Silinda sumul karfe bututu ne dace da mai, na'ura mai aiki da karfin ruwa Silinda, inji aiki, lokacin farin ciki bango bututun, sinadaran masana'antu, wutar lantarki, tukunyar jirgi masana'antu, high zafin jiki, low zafin jiki da kuma lalata juriya sumul karfe bututu, kuma shi ne dace da man fetur, jirgin sama, narkewa, abinci, tanadin ruwa, wutar lantarki, masana'antar sinadarai, fiber sinadarai, injinan likitanci da sauran masana'antu.
Ana yin bututun ƙarfe mai rufi na ciki da na waje ta hanyar narke Layer na polyethylene (PE) resin, ethylene-acrylic acid copolymer (EAA), epoxy (EP) foda, da polycarbonate mara guba tare da kauri na 0.5 zuwa 1.0mm. akan bangon ciki na bututun karfe.Bututun da aka haɗa da ƙarfe-roba da aka haɗa da abubuwan halitta irin su propylene (PP) ko polyvinyl chloride mara guba (PVC) ba wai kawai yana da fa'idodin ƙarfi mai ƙarfi, haɗin kai mai sauƙi, da juriya ga kwararar ruwa ba, har ma yana shawo kan lalatawar ƙarfe. bututu idan an fallasa ruwa.Lalacewa, ƙwanƙwasa, ƙarancin ƙarfin bututun filastik, ƙarancin aikin kashe gobara da sauran gazawa, rayuwar ƙirar na iya zama har zuwa shekaru 50.Babban hasara shine kada a lanƙwasa lokacin shigarwa.A lokacin sarrafa zafi da yankan walda na lantarki, ya kamata a fentin filin yankan tare da mannen zafin jiki na yau da kullun mara guba wanda masana'anta ke bayarwa don gyara sashin da ya lalace.
Alloy maras sumul karfe bututu ne mai irin sumul karfe bututu, kuma aikinsa ya fi na talakawa sumul karfe bututu.