CE304 Stainless Steel Decoration Sheet 20mm Cold Rolled 2b Finish Stainless Steel Plate1

After the end of World War II, the U.S. nickel supply situation gradually improved, therefore, the production of 300 series stainless steel is no longer subject to the constraints of raw material constraints, so the 200 series has not been a major development. Several when involved in the development of 200 series stainless steel Indian, back to India, from India is a relatively rich in manganese resources, nickel resources lack of national conditions, will be developed in the United States of America 200 series of stainless steel varieties brought back to India.

The application of 200 series stainless steel in India so successful, is because in some specific applications have the potential to replace 304 stainless steel.

Most of the 200 series stainless steel sold in the Chinese market almost no control of sulfur and carbon content in accordance with national standards, manganese (and nitrogen) to replace some or all of the nickel to produce lower nickel content of austenitic stainless steel.

The disadvantage of this series of materials is that the chromium content of less than 18% and low nickel content does not reach a balance and the formation of ferrite, for this reason, the 200 series of stainless steel in the chromium content down to 13.5% to 15%, and in some cases down to 13% to 14% of the corrosion resistance can not be compared with 304 and other similar steel. In addition, the acidic conditions common to corrosion sites in deposition zones and crevices, manganese and in some cases copper reduce the repassivation. 200 series steels are destroyed under these conditions at a rate of about 10-100 times that of 304 stainless steel. Residual sulfur and carbon content in these steels often cannot be controlled in production, and the material cannot be traceably tracked, even in material recycling. If Cr-Mn steels are not accounted for, they can become a dangerous mix of scrap material, resulting in castings with unexpectedly high manganese content.