DUPLEX STAINLESS STEEL 2205

UNS S31803, S32205

Characteristics.

  • Fights habitual corrosion problems. Which means that provides higher resistance to corrosion for common stainless steels.
  • Combines the favorable qualities of a ferritic alloy (high resistance to stress corrosion) with ones of an austenitic alloy (fabrication facility and resistance to corrosion).
  • Consist of austenite pools surrounded by a continuous ferrite phase.
  • Excellent chromium, molybdenum, and nitrogen combination. 
  • Used in marine environments, laundered proceeds, closed loop water systems, flue gas desulphurization equipment and some applications in food processes. 

Shape or Presentation

  • Sheet 
  • Plate
  • Bar
  • Tube
  • Tubing
  • Accessories
  • Welding wire and electrode welding.

Chemical Composition %

  • Cr
  • Ni
  • Mo
  • C
  • N
  • Mn
  • Si
  • P
  • S
  • Fe
  • 22.0 – 23.0
  • 4.50 – 8.50
  • 3.00 – 3.50
  • 0.030 max
  • 0.14 – 0.20
  • 2.00 max
  • 1.00 max
  • 0.030 max
  • 0.020 max
  • Balance