Duplex valves are industrial valves that are made from duplex stainless steel, a type of steel known for its high strength and excellent corrosion resistance. Duplex stainless steel is a hybrid of austenitic and ferritic stainless steel types, which gives it a higher strength and superior resistance to corrosion than standard stainless steel.
The duplex grade has high strength and high corrosion resistance with austenitic and ferritic phases in the microstructure. The metallurgy makes these steels to be used in a wide range of applications.