Definition of stainless steel
Date：2015-08-31 / Popularity：
In the air or chemical corrosion medium can resist the corrosion of a high alloy steel, stainless steel is beautiful surface and has good corrosion resistance, need not through surface treatment such as plating color, and play so inherent surface properties, used in the iron and steel, commonly known as stainless steel. Represent properties of 13 steel, chromium nickel steel and high alloy steel 18-.
From the point of view of metallography analysis, because stainless steel containing chromium and make the surface to form a thin Cr film, the film segment left and steel in invasive oxygen corrosion.
In order to keep the corrosion resistance of stainless steel, the steel must contain more than 12% of the chromium.