Duplex S31803 Seamless Pipe

Duplex S31803 Seamless Pipe

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Duplex S31803 Seamless Pipes:

Material Specfication and Dimension Standards:

Product CategoryMaterial Specification as per ASME/ASTMDimension Standards
Seamless Pipes | Welded PipesASME SB167/167M TPS31803, ASTM B167/167M TPS31803, ASME SA928/928M TPS31803, ASTM A928/928M TPS31803 Class 1, Cl. 2, Cl. 3, Cl. 4, Cl. 5ANSI B36.10, ANSI B36.19

Size Range:

1/4" to 16"Sch 5, Sch 5s, Sch 10, Sch 10s, Sch 20, Sch 30, Sch 40s, Sch 40, Sch STD, Sch 60, Sch 80s, Sch 100, Sch 120, Sch XS, Sch XXS, Sch 160

Notes : We can meet other dimensions outside the above mentioned range in special cases.

Why choose Us:


  • More than 30 years of expirience in this business
  • You can get stock options, mill deliveries with shortest manufacturing time
  • we assure you of as response in 24 hours (generally in same hour)
  • You will get the right material as per your requirement at the minimum possible price, (beware of unrealistic offers from other vendors)
  • 100% Fulfilment of commitments, if we cannot meet your requirement even after checking all options we will not give false assurance, this helps us in maintaining good relations with our customers
  • We can offer Exworks, FOB, CFR, CIF, Door to Door Delivery prices. We suggest that you let us do the shipping, because it will be cost effective as well as efficient
  • The materials we supply come with full traceability, right from raw material test certificate to final dimensional report. (Reports available on request)


Other Product Names(Equivalent):

UNS NosOther Names
UNS S3103duplex steel, dss steel, duplex stainless steel, F51


Seamless PipesWelded PipesSAW PipesLSAW PipesDSAW PipesERW Pipe
EFW PipeHeavy wall thickness pipesPolished Pipes (only applicable for stainless steel 304, 304L, 316, 316L)Matt Polish PipeMirror Finish PipeElectropolish Pipe
Mechanically Polish Pipe 



  • We supply Duplex Stainless Steel to Pressure Vessel, Tanks and Heat Exchanger Manufacturers used in Chemical Process Plants and Oil and Gas Exploration
  • DSS is used a lot in Marine, Water and Waste Water Treatment Plants
  • Duplex is a big yes for Effluent scrubbing systems