Stainless Steel Duplex Grades

North American Stainless produces duplex grades 2205 and 2304 in both flat products and long products.  Type 2205 and 2304 are duplex stainless steel grades with a microstructure, when heat treated properly, of nearly equal proportions of austenite and ferrite. The higher chromium, molybdenum and nitrogen contents give 2205 significantly improved pitting and crevice corrosion resistance…