Farantin bakin karfe 420Nau'in ƙarfe ne na bakin ƙarfe mai suna martensitic, wanda ke da wasu juriyar lalacewa da juriyar tsatsa, mai ƙarfi, kuma farashin ya yi ƙasa da sauran halaye na bakin ƙarfe. Takardar ƙarfe mai launin 420 ta dace da kowane nau'in injina masu daidaito, bearings, kayan lantarki, kayan aiki, kayan aiki, mitoci, motoci, kayan aikin gida, da sauransu. Haka kuma ana amfani da ƙarfe mai launin 420 a cikin kera sassan da ke jure wa iska, tururin ruwa, ruwa da kuma lalata iskar acid.
Ma'aunin zartarwa na takardar bakin karfe 420 na kasar Sin:
GB/T 3280-2015 "Takardar Karfe Mai Sanyi Mai Naɗewa da Zare"
GB/T 4237-2015 “Fararen ƙarfe mai zafi da aka yi birgima da tsiri”
GB/T 20878-2007 “Bakin ƙarfe da matakan ƙarfe masu jure zafi da kuma sinadaran da ke cikinsa”
Farantin bakin karfe 420 a kasar Sin:
Sabbin ma'auni: 20Cr13, 30Cr13, 40Cr13.
Tsoffin ma'auni: 2Cr13, 3Cr13, 4Cr13.
Halaye da Amfanin takardar bakin karfe 420 ta China:
Bakin ƙarfe 20Cr13: babban tauri a yanayin da ba a iya kashewa ba, mai juriya ga tsatsa. Don ruwan turbine mai tururi.
Bakin ƙarfe 30Cr13: Ya fi 20Cr13 ƙarfi bayan an kashe shi, ana amfani da shi azaman kayan aikin yankewa, bututun ƙarfe, kujerun bawul, bawul, da sauransu.
Bakin ƙarfe 40Cr13: Ya fi 30Cr13 ƙarfi bayan an kashe shi, ana amfani da shi azaman kayan aikin yankewa, bututun ƙarfe, kujerun bawul, bawul, da sauransu.
Lokacin Saƙo: Yuli-31-2023