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Stainless Steel Alloy Duplex 2205, UNS S32205

Special Alloys > Stainless Steel Alloy Duplex 2205, UNS S32205

Duplex 2205 aka UNS S32205 is a nitrogen-approved stainless steel. It offers excellent corrosion resistance and high strength. A noteworthy point for Duplex 2205 is that it offers much higher levels of corrosion resistance than most other austenitic stainless steels.

Other advantages include:

  • High resistance to crevice corrosion and pitting effects
  • Performs brilliantly in most caustic conditions
  • Good weldability

Chemical Composition-

  • Chromium- Between 21-23%
  • Nickel- Between 4.5-6.5%
  • Manganese- Up to 2% Max
  • Molybdenum- Between 2.5-3.5%
  • Nitrogen- Between 0.08-0.20%
  • Phosphorus- Up to 0.30% max
  • Carbon- Up to 0.030% max


  • Food Processing Industry
  • Pulp and Paper Manufacturing Industry
  • Oil and Gas Exploration and Processing Industry
  • Waste Management Industry
  • Applied for Chemical processing, transport, and storage
  • Marine and Land Cargo Industry
  • Biofuel Production Industry

We supplies Duplex 2205 in a various shapes and sizes including coil, plate, plate, sheet, coil, and more. All these forms match standards like ASTM, UNS and ASME.

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