Allegheny Technologies Inc. announced that ATI 2003(R) lean duplex stainless has been selected as the material of choice for a full array of offshore topside structural components. ATI 2003 lean duplex stainless was chosen over 316L stainless and coated carbon steel for topside secondary and outfitting structural components on a major offshore project in the Norwegian North Sea. The end user chose ATI's innovative material to solve both corrosion and weight concerns.