S31500 Duplex Stainless Steel Pipe and Tube

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A312 UNS N08904 904L Seamless Pipe

S31500 Pipe And Tube

  • Grade:S31500, 1.4424, X2CrNiMoSi18-5-3
  • OD: 6mm-630mm, 1/4"-24"
  • WT: 0.7mm-30mm, Sch 10S-Sch XXS
  • Length: Fixed or random length as specified
  • Specifications: ASTM A789, ASTM A790, EN10216-5
  • Delivery Condition: Annealed and Pickled, Birght Annealed, Mechanical Polished, Electric Polished
  • Mill Certificate: EN 10204 3.1, EN10204 3.2
  • Marking: Continuosly stenciled as specified.
  • Packing: In bundle or plywood cases with end caps
  • Manufacturing: Seamless, Welded


S31500 material is a duplex (austenitic-ferritic) stainless steel with characters as High resistance to stress corrosion cracking (SCC) in chloride, bearing environments, Good resistance to general corrosion and pitting, High mechanical strength, roughly twice the proof strength of austenitic grades, Good resistance to erosion corrosion and corrosion fatigue, Physical properties that present design advantages, Good weldability

Chemical Composition:

% C Mn P S Si Cr Ni Mo Cu N Fe
Min - 1.2 - - 1.4 18 4.2 2.5 - 0.05 balance
Max 0.03 2 0.03 0.03 2 19 5.2 3.5 - 0.1 balance

Mechanical Property:

20°C Tensile Strength Yield Strength Elongation % Hardness Density
Min 630Mpa 440Mpa 30% - 7.8kg/dm3
Max - - - 30HRC 7.8kg/dm3


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Range of Products:

Plates / Sheets / Coil Heavy Plate
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Con Reducer / Ecc Reducer
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Coupling / Cap
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Seamless Tube
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Seamless U-Tube
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