Bambanci tsakanin 304 da 321 bakin karfe
Babban bambanci tsakanin 304 da 321 bakin karfe shine 304 ba ya ƙunshi Ti, kuma 321 ya ƙunshi Ti. Ti na iya guje wa faɗakarwar bakin karfe. A takaice, shine don inganta rayuwar sabis na bakin karfe a cikin babban aikin zafin jiki. Wato, a cikin yanayin zafi mai zafi, farantin bakin karfe 321 Ya fi dacewa da farantin bakin karfe 304. Dukansu 304 da 321 duka bakin karfe ne na austenitic, kuma bayyanarsu da ayyukansu na zahiri suna kama da juna, tare da ɗan bambance-bambance a cikin abubuwan sinadaran.
Da farko, ana buƙatar bakin karfe 321 don ƙunshi ƙaramin adadin titanium (Ti) (bisa ga ka'idodin ASTMA182-2008, abun ciki na Ti bai kamata ya zama ƙasa da sau 5 na abun ciki na carbon (C), amma ba ƙasa da 0.7 ba. % bayanin kula, 304 da 321 Abubuwan da ke cikin carbon (C) shine 0.08%), yayin da 304 ba ya ƙunshi titanium (Ti).
Na biyu, abubuwan da ake buƙata don abun ciki na nickel (Ni) sun ɗan bambanta, 304 yana tsakanin 8% da 11%, kuma 321 yana tsakanin 9% da 12%.
Na uku, abubuwan da ake buƙata don abun ciki na chromium (Cr) sun bambanta, 304 yana tsakanin 18% da 20%, kuma 321 yana tsakanin 17% da 19%.
Lokacin aikawa: Janairu-19-2020