Duplex & Super Duplex

 


 

Super Duplex alloys are characterised by higher Chromium content than standard duplex stainless, typically around 25% and a PREN > 40 (PREN = Cr% + 3.3Mo% + 16N%) and offer improved corrosion resistance and better mechanical properties.

 

Duplex stainless steel grades:

Alloy / Common Name ASTM Type
255SS, J93370, CD4MCu A890 1A 25Cr-5Ni-Mo-Cu
J93372, CD4MCuN A890 1B 25Cr-5Ni-Mo-Cu-N
J93373, CD3MCuN A890 1C 25Cr-6Ni-Mo-Cu-N


Duplex & Super Duplex Forms Available:

• Fittings & Flanges
• Pipe
• Plate
• Sheet
• Tube
• Bar


Value Added Service:

• Heat treatment
• Annealed & pickling
• Rolling, cutting, bending, forging, minor fabrication, etc.
  Products List
  Nickel Alloys  
  Nickel 200 / 201  
  Monel 400  
  Monel K500  
  Inconel 600  
  Inconel 601  
  Inconel 617  
  Inconel 625  
  Inconel 718  
  Incoloy 800 / H /HT  
  Incoloy 825  
  Hastelloy C276  
  Hastelloy C22  
  Hastelloy B2  
  Hastelloy B3  
  Hastelloy X  
  Titanium Alloys  
  Alloy 20  
  904L  
  Duplex & Super Duplex  
     

 

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