Official Answer
Answer
Passivation (da ASTM A967) magani ne na sinadarai a cikin nitric ko citric acid wanda ke kawar da baƙin ƙarfe 'tramp' da sauran gurɓataccen ƙasa daga bakin karfe. Wannan tsari yana haɓaka samuwar siriri, Layer chromium-oxide mai kariya. Ba tare da wuce gona da iri ba, ƙananan barbashi na baƙin ƙarfe daga kayan aikin masana'anta na iya haɗawa da saman zobe kuma su haifar da 'furi' ko ƙazamin rami a cikin mahalli masu lalata. Don Bakin Karfe 316, wanda ya ƙunshi molybdenum don ingantacciyar juriya na chloride, wucewa yana da mahimmanci ga aikace-aikacen cikin teku don hana ɓarna ɓarna a cikin tsagi inda ruwa mai ƙarfi zai iya tarawa.
