Duplex Stainless Steel: Definition, Grades, Composition, Properties, and Applications

Duplex Stainless Steels are a specific group of engineering stainless steel materials consisting of the austenitic and ferritic phase in roughly equal proportions in the microstructure. They are widely popular because of their good corrosion resistance along with high strength and ease of fabrication. They are also popular by their acronym DSS. Compared to traditional austenitic stainless steel and ferritic stainless steel grades; Duplex Stainless Steels provide a range of benefits lik

• Improved Strength: Roughly two-times stronger than normal stainless steel grades.

• High Toughness and Ductility

• High Corrosion Resistance

• Cost-Effectiveness: High strength of DSS material required less pipe thickness reducing pipe weight. Also, lower levels of nickel reduce cost.