An buga sabon kwaskwarimar ka'idojin kasa da kasa a fannin faranti da tsiri na karfe da kasar Sin ta jagoranta a hukumance

An gabatar da wannan ƙa'ida don yin gyara a shekarar 2022 a taron shekara-shekara na Kwamitin Kayayyakin Karfe/Ci gaba da Rufewa Mai Lanƙwasa na ISO/TC17/SC12, kuma an ƙaddamar da ita a hukumance a watan Maris na 2023. Ƙungiyar aikin tsara daftarin ta ɗauki shekaru biyu da rabi, inda aka gudanar da taron ƙungiya ɗaya da tarurruka biyu na shekara-shekara don tattaunawa mai zurfi, kuma a watan Afrilun 2025, an gabatar da bugu na shida na daidaitaccen ISO 4997:2025 mai taken "Structural Grade Cold Rolled Carbon Thin Steel Plate" a matsayin abin da aka yi wa kwaskwarima.

Wannan ma'auni wani sabon gyare-gyare ne na ƙa'idojin ƙasa da ƙasa da China ta jagoranta bayan da China ta karɓi shugabancin ISO/TC17/SC12. Fitar da ISO 4997:2025 wani ci gaba ne ga shigar China cikin aikin daidaita daidaito na ƙasa da ƙasa a fannin faranti da tsiri na ƙarfe bayan ISO 8353:2024.

An yi alƙawarin inganta ƙarfi da rage kauri, ta haka ne rage nauyin kayayyakin ƙarshe, cimma burin ceton makamashi da rage fitar da hayaki, da kuma cimma manufar samar da "ƙarfe kore". Ba a tsara sigar 2015 ta ma'aunin ƙarfin samar da kayayyaki da aka fi amfani da shi a kasuwa na maki 280MPa ba. Bugu da ƙari, abubuwan da ke cikin fasaha na ma'aunin, kamar su tsatsa da nauyin batch, ba su cika ainihin buƙatun samarwa na yanzu ba. Domin ƙara inganta amfani da ma'aunin, Cibiyar Bincike ta Ma'aunin Bayanai na Masana'antu ta Masana'antu ta shirya Kamfanin Anshan Iron & Steel Co. don neman sabon aikin aiki na ƙasa da ƙasa don wannan samfurin. A yayin aiwatar da gyare-gyare, an ƙayyade buƙatun fasaha na sabon matakin ne ta hanyar tattaunawa da ƙwararru daga Japan, Jamus da Burtaniya sau da yawa, suna ƙoƙarin biyan buƙatun samarwa da dubawa a kowace ƙasa da kuma faɗaɗa iyakokin amfani da ma'aunin. Fitowar ISO 4997:2025 "Tsarin Tsarin Carbon Thin Steel Plate" yana tura sabbin maki da ƙa'idodi da China ta bincika kuma ta haɓaka zuwa duniya.