Stainless steel (UNI EN 10029:2011) is characterized by the almost total absence of Carbon (C <0.07%) Chromium content (Cr > 10.5%). The latter promotes a natural passivation layer, giving this type of steel a high resistance to atmospheric corrosion (higher than galvanized steel) as well as greater resistance to heat and corrosion caused by the use of acids or corrosive products. Due to its shiny appearance and the chemical and physical, molecularly compact composition, it's widely used in the agro-food and pharmaceutical industries.
Unlike coated steels, stainless steel, although more expensive due to high production costs, guarantees an almost endless service life, is more hygienic and cleaner and does not experience wear and tear over time even if scratched or etched, thanks to the action of chromium reacting chemically within. The durability of coated steels, on the other hand, depends on both atmospheric conditions and mechanical wear and tear.