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For stainless steel different kinds of compositions are used. Based on that different series of stainless steel has been coined.1. Series 200 - Iron alloyed with chromium, nickel and manganese.2. Series 300 - It has a. Stainless Steel 304 - it has composition of 18% chromium and 8% Nickelb. Stainless Steel 316 - This has 18% chromium and 10% NickelEach kind of stainless steel is of different cost and has different applications.