What is Stainless Steel?
Stainless steel is a low carbon steel which contains a minimum of 10,5% chromium by weight. It is this addition of chromium that gives the steel its unique stainless, corrosion resisting properties. The chromium content of the steel allows the formation of an invisible film of chromium oxide on the steel surface. It is this film that creates the corrosion resistant barrier and even if damaged mechanically or chemically, this film is self-healing, provided that oxygen is present. This process is known as passivating. There are numerous grades of stainless steel available and it is important to understand these grades to make an informed decision.