Reason for 904L stainless steel plate
There are many reasons to cause the stainless steel plate, today 904L stainless steel plate manufacturers small make up to introduce a kind of stainless steel plate corrosion has a great impact on it is the natural intergranular corrosion.
This titanium and niobium free material has a tendency to intercrystalline corrosion. Adding titanium and niobium, combined with stabilization treatment, can reduce intergranular corrosion. In the air or chemical corrosion medium can resist corrosion of a kind of high alloy steel, stainless steel is a beautiful surface and corrosion resistance is good, do not have to go through the plating color and other surface treatment, and play the inherent surface properties of stainless steel, used in a variety of steel, usually called stainless steel.
Representative performance of the 13 chromium steel, 18-8 chromium nickel steel and other high alloy steel. From the metallographic analysis, because stainless steel contains chromium, the surface of the formation of a very thin chromium film, the film separated from the steel and the invasion of oxygen corrosion resistance. In order to maintain the inherent corrosion resistance of stainless steel, the steel must contain more than 12% chromium. Used for welding.
The lower carbon content minimizes the amount of carbides precipitated in the heat-affected zone close to the weld, and the precipitation of carbides may lead to intergranular corrosion of stainless steel in some environments.