Yaƙe-yaƙen ƙasashen waje na ci gaba da faruwa, amma tattalin arzikin cikin gida yana ci gaba da gabatar da manufofi masu kyau, kuma a ɓangaren masana'antu, farashin ƙarfe ya kai sabon matsayi sau da yawa. Bifocals sun tashi sakamakon ƙaruwar buƙata a lokacin dumama, tallafin kuɗi ya yi ƙarfi, kuma farashin ƙarfe ya ci gaba da hauhawa., fargabar buƙatar manyan kayayyaki ya ƙaru, ayyukan sake cika kasuwa sun ƙaru, yawan samar da ɗanyen ƙarfe a kowace rana ya ragu, shigo da baƙin ƙarfe ya ragu, an fara wani zagaye na gwanjon ƙasa, kuma kasuwar ta yi karko kuma ta yi ƙarfi. Daga hangen nesa, ana sa ran farashin ƙarfe zai yi karko kuma ya yi ƙarfi gobe.

Kamfanin Sanon Pipe Industry yana da waɗannan bututun ƙarfe a hannun jari:

Bututun ƙarfe mara sumul don boilers masu matsa lamba kaɗan da matsakaici - GB/T3087-200810#, ana amfani da shi don bututun tururi mai zafi, bututun ruwan zafi, bututun bango mai sanyaya ruwa da bututun tururi mai zafi don tukunyar jirgi, manyan bututun hayaki, ƙananan bututun hayaki da bututun bulo, da sauransu. Babban kayan: 10# 20#, tsarin samarwa: Ana isar da mai zafi a yanayin birgima mai zafi, birgima mai sanyi (birgima) ana isar da shi a yanayin da aka yi wa zafi magani.

Bututun ƙarfe marasa sumul don boilers masu matsin lamba mai yawa - GB/T5310-2017, manufa: Ana amfani da shi musamman don kera ƙarfe mai inganci na carbon, ƙarfe mai tsari na ƙarfe da bututun ƙarfe mai jure zafi mara shinge don bututun tukunyar tururi mai matsin lamba mai yawa ko sama da haka. . Manyan matakan ƙarfe mai tsari na carbon sun haɗa da 20g, 20mng, da 25mng, kuma matakan ƙarfe mai tsari na alloy sun haɗa da 15mg, 20mg, 12crmog, 15crmog, 12cr2mog, 12crmovg, 12cr3movsitib, da sauransu.

ASME SA-106/SA-106M-2015——Babban kayan aiki: GR.B GR.C

ASTMA210(A210M)-2012——Babban kayan aiki: SA210 GrA1. SA210 GrC

ASME SA-213/SA-213M- Kayan ƙarfe da aka saba amfani da su: T11, T12, T22 T23 T91 P92

ASTM A335/A335M-2018- Babban kayan aiki: P11 P12 P22 P5 P9 P23 P91 P92

Bututun injina da taki da bututun sinadarai:GB/T8162-2008Bututun ƙarfe marasa sumul don amfani da tsarin - manyan kayan sune 10.20.35.45.Q345

BS EN 10210-1-2006Karfe mai laushi wanda ba na ƙarfe ba ne da kuma ƙarfe mai laushi mai laushi don tsarin ƙarfe—S235GRH S275JOH S275J2H S355JOH S355J2H

ASTM A53A53M-2012Bututun ƙarfe mara sumul, mai walda da kuma mai tsoma zafi - GR. A GR.B

Bututun ƙarfe masu laushi don fashewar man feturGB9948-2006 ——Bututun ƙarfe marasa sumul don bututun hayaki, bututun musayar zafi da bututun mai a cikin masana'antar mai da matatun mai, manyan kayan sune: ƙarfe mai inganci na ƙarfe mai tsarin carbon sune 20G, 20MnG, 25MnG, ƙarfe mai tsarin ƙarfe mai tsari 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, da sauransu.;

Bututun Tsarin Bututun Mai: API 5L (Sigar 45) Bututun Layi PSL1 PSL2, GB/T 9711-2017 Bututun ƙarfe don tsarin jigilar bututun mai da iskar gas na masana'antu, babban kayan aiki: GR.B X42 X52 X60 X65 X70;

API SPEC 5CT-2018 Casing da Tube, manyan kayan sune: J55 K55 N80 N80Q L80 L80Q P110