304 bakin karfe takardar wani nau'i ne na bakin karfe na austenitic wanda ake amfani dashi a cikin aikace-aikacen masana'antu daban-daban saboda kyakkyawan juriya, ƙarfi, da ductility. Ya ƙunshi abubuwa na musamman waɗanda ke ba shi kaddarorinsa na musamman da halayensa.
Babban bangaren
Abubuwan farko na takardar bakin karfe 304 sune baƙin ƙarfe, carbon, chromium, da nickel. Iron shine tushen tushe, yana samar da ƙarfe tare da ƙarfinsa da ductility. Ana ƙara Carbon don haɓaka taurin ƙarfe da tsayin daka, amma dole ne ya kasance a cikin ƙananan ƙira don guje wa rage juriyar lalata.
Chromium kashi
Chromium shine mafi mahimmancin kashi a cikin bakin karfe 304, saboda shi ke da alhakin juriyar lalacewa. Chromium yana samar da Layer oxide mai kariya akan saman karfe lokacin da aka fallasa shi zuwa iskar oxygen, yana hana tsatsa da lalata. A cikin 304 bakin karfe, abun ciki na chromium yawanci yana kusa da 18-20% ta nauyi.
Sinadarin nickel
Nickel wani muhimmin sashi ne na bakin karfe 304, wanda ke cikin adadin 8-10% ta nauyi. Nickel yana inganta ductility na karfe da taurinsa, yana sa ya zama mai juriya ga fashewa da karyewa. Hakanan yana haɓaka juriya na lalata, musamman a wuraren da ke ɗauke da chloride.
Wasu abubuwa kaɗan
Baya ga waɗannan abubuwa na farko, bakin karfe 304 na iya ƙunsar ƙananan abubuwa kamar su manganese, silicon, sulfur, phosphorus, da nitrogen. Ana ƙara waɗannan abubuwan don gyara kaddarorin ƙarfe da haɓaka aikin sa a takamaiman aikace-aikace.
A taƙaice, abun da ke ciki na takardar bakin karfe 304 ya dogara da farko akan ƙarfe, tare da chromium da nickel a matsayin abubuwan haɗakarwa. Wadannan abubuwa, tare da ƙananan adadin sauran abubuwa, suna ba 304 bakin karfe kyakkyawan juriya na lalata, ductility, da kuma yanayin zafi mai zafi. Wannan na musamman abun da ke ciki ya sa 304 bakin karfe takardar zama sosai m kayan dace da fadi da kewayon aikace-aikace.
Lokacin aikawa: Maris 25-2024