Buy Steel Sheet What are the main components of stainless steel? The main component of stainless steel is chromium. Chromium is a steel-gray metal, which is the hardest metal in nature. ss sheet is resistant to corrosion only when the chromium content reaches a certain value. Therefore, stainless steel generally has a chromium content of at least 10.5%. Stainless steel also contains Ni, Ti, Mn,...