Yaƙe-yaƙe na ketare na ci gaba da ci gaba, amma tattalin arzikin cikin gida yana ci gaba da gabatar da manufofi masu kyau, kuma a ɓangaren masana'antu, farashin ƙarfe na ƙarfe ya kai sabon matsayi sau da yawa. Bifocals sun tashi saboda karuwar buƙatu a lokacin lokacin zafi, tallafin farashi ya kasance mai ƙarfi, kuma farashin ƙarfe ya ci gaba da tashi. , Tsoron yawan buƙatu na tashoshi ya ƙaru, ayyukan cike kasuwanni sun ƙaru, aikin ɗanyen karafa ya ragu a kullum, an samu raguwar shigo da taman ƙarfe daga waje, an fara gwanjon ƙasa sau ɗaya, kuma kasuwar tabo tana da ƙarfi da ƙarfi. Daga cikakkiyar hangen nesa, ana sa ran farashin karfe zai kasance karko da karfi gobe.

A halin yanzu Sanon Pipe Industry yana da waɗannan bututun ƙarfe a hannun jari:

Bututun ƙarfe mara ƙarfi don ƙananan tukunyar jirgi da matsakaicin matsa lamba - GB/T3087-200810#, ana amfani da bututun tururi mai zafi, bututun tafasasshen ruwa, bututun bango mai sanyaya ruwa da kuma bututun tururi mai zafi don masu hawa, manyan bututun hayaƙi, ƙananan bututun hayaƙi da bututun bulo, da sauransu. Babban abu: 10 # 20 #, tsarin samarwa: ana isar da zafi mai zafi a cikin yanayin zafi mai zafi, ana isar da sanyi (birgima) a cikin yanayin zafi.

Bututun ƙarfe maras ƙarfi don manyan tukunyar jirgi - GB/T5310-2017, manufa: Yafi amfani da tsirar high quality-carbon tsarin karfe, gami tsarin karfe da bakin zafi-resistant karfe sumul karfe bututu for tururi tukunyar jirgi bututu na high matsa lamba da kuma sama. . High quality-carbon tsarin karfe maki hada da 20g, 20mng, da kuma 25mng, da kuma gami tsarin karfe maki hada da 15mog, 20mog, 12crmog, 15crmog, 12cr2mog, 12crmovg, 12cr3movsitib, da dai sauransu

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

ASTMA210(A210M) -2012--Babban abu: SA210 GRA1. SA210 GrC

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

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

Bututun inji da taki da bututun sinadarai:GB/T8162-2008Bututun ƙarfe mara ƙarfi don amfani da tsarin - manyan kayan sune 10.20.35.45.Q345

TS EN 10210-1-2006Hot-birgima maras alloy tsarin karfe da lafiya- hatsi tsarin karfe m sassa na karfe Tsarin-S235GRH S275JOH S275J2H S355JOH S355J2H

Saukewa: ASTM A53A53M-2012Bututun ƙarfe mara nauyi, welded da zafi tsoma galvanized karfe - GR. A GR.B

Seamiess karfe bututu don fatattaka man feturGB9948-2006 --Seamless karfe bututu don fumace bututu, zafi musayar bututu da bututu a cikin man fetur da kuma matatar shuke-shuke, babban kayan ne: high quality-carbon tsarin karfe maki maki ne 20G, 20MnG, 25MnG, gami tsarin karfe karfe maki, 15Mo 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, da dai sauransu;

Tsarin Bututun Mai: API 5L (Version 45) Line Pipes PSL1 PSL2, GB / T 9711-2017 Karfe bututu don mai da gas masana'antu bututu tsarin sufuri, babban abu: GR.B X42 X52 X60 X65 X70;

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