Babban mu na 304-2B bakin karfe ƙaramin carbon ne, austenitic chromium-nickel alloy wanda aka ƙera don ƙwaƙƙwaran juriyar lalata da haɓaka kariya ta ɓarna ta intergranular, koda bayan waldawa ko magance damuwa. Tare da abun da aka ƙera don rage haɓakar carbide, wannan matakin yana tabbatar da dogaro ga yawancin hanyoyin ginin walda kuma ya dace da aikace-aikace inda zafin aiki bai wuce 800°F ba. A cikin yanayin da aka cire, takardar ba ta da maganadisu kuma baya amfana daga taurare ta hanyar ƙarin jiyya na zafi, yana mai da shi manufa don daidaito da karko a cikin amfani daban-daban.