200 Series stainless steel is a kind of austenitic stainless steel. Mn and N are added to replace some part of Ni, but they still contain some proportion of Ni, Normally it contains 4% to 6% percent. Mn is used to stable austenitic stainless steel; N is used to increase the hardness. Therefore, 200 series stainless steel is widely used in the equipment or parts that need undertake high pressure and do not have a very requirement for corrosion resistance.
During the Second World War, every country has a very high restriction on stainless steel application in order to get rid of the lacking of stainless steel material. America is the first country which applies 200 serial stainless steel so as to compensate for the lacking of 300 series stainless steel. Under that period, 200 series stainless steel has played a very importance role. With the production technology, more and more people realize its limited application area. 200 series stainless steel only contain 2 % in the whole stainless steel material consumption.
|Grade and Main chemical composition|
1. It is cheaper and more affordable.
2. Without a high requirement on anti resistance, 200 series stainless steel can replace 304
3. Wide arrange of application, it is more widely used in decoration, kitchen hardware.