Stainless steel definition
In the air or chemical corrosion medium to resist corrosion of a high alloy steel, stainless steel is a beautiful surface and good corrosion resistance, without having to go through the surface treatment such as plating, and to play the inherent surface properties of stainless steel, used in more A type of steel, often referred to as stainless steel. Representative performance of 13 chrome steel, 18-chrome-nickel steel and other high-alloy steel. From the metallographic point of view, because the stainless steel contains chromium and the surface to form a very thin chromium film, the film isolated from the steel with oxygen intrusion from the corrosion-resistant role. In order to maintain the inherent corrosion resistance of stainless steel, steel must contain more than 12% chromium.