ATI 2003 lean duplex stainless steel (LDSS) is a molybdenum-enhanced, duplex stainless steel alloy. Cr, Ni, Mo, and N are controlled to give a phase balance similar to that of ATI 2205 duplex stainless steel, while reducing costs. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-1258. Producer or source: Allegheny Technologies Inc..