Duplex and Super Duplex
Due to the repeated contact with sea or salt water, the choice of the right material for pumps in desalination plants is crucial. Due to the aggressiveness of the salt water, ANDRITZ pumps are made of a special, resistant material, namely duplex steel. Striking characteristics of duplex steel are their high resistance to surface corrosion, local corrosion and stress corrosion cracking. The structure of this steel is particularly resistant to corrosion fatigue, energy absorption, erosion and abrasion, low thermal expansion and has good weldability. The processing of duplex steel requires extensive practice and know-how. ANDRITZ has long-term experiences in the application of this special material.