The main alloying element in stainless steel is chromium, only when the Cr content reaches a certain value, the steel has corrosion resistance.
Into eyinhloko yokuhlanganisa insimbi engagqwali yi-Cr (chromium), futhi kuphela lapho okuqukethwe kwe-Cr kufinyelela inani elithile, insimbi inokumelana nokugqwala.