Duplex & Super Duplex Pipes

Duplex UNS S32205 Pipes & Tubes

ASTM A790 · Seamless, ERW and welded · 1/2" NB to 12" NB

Duplex UNS S32205 Pipes & Tubes

Duplex UNS S32205 Pipes & Tubes in seamless, ERW and welded to ASTM A790. Get quotes from verified suppliers on MetalMitra.

  • Duplex UNS S32205 Pipes & Tubes
  • Duplex S32205
  • Seamless
  • ERW
  • Welded
  • EFW
  • LSAW

Your details are never shown publicly. The MetalMitra team reviews every requirement.

Specifications

SpecificationsASTM A790 / ASME SA790, ASTM A789 / ASME SA A789 / ASTM A815
DimensionsASTM, ASME and API
Size1/2"NB TO 12 "NB IN 1/2
Seamless Pipes & Tubes Sizes1/2" NB – 8" NB
Welded Pipes & Tubes Sizes6" NB – 24" NB
Outer Diameter6.0-630mm
Thickness0.5-45mm
ScheduleSCH20, SCH30, SCH40, STD, SCH80
TypeSeamless / ERW / Welded / Fabricated / CDW
FormRound Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, "U" Shape, Pan Cake Coils, Hydraulic Tubes
LengthSingle Random, Double Random & Required Length
EndPlain End, Beveled End, Threaded

Grades & standards

  • ASTM A790
  • ASTM A789
  • ASTM A815

Chemical composition & mechanical properties

Duplex 2205 — Chemical composition, %
CMnPSSiCrNiMoN
0.0302.000.0300.0201.0022.0–23.04.5–6.53.0–3.50.14–0.20
Duplex 2205 — Mechanical properties
Tensile strength, min655 MPa
Yield strength (0.2%), min450 MPa
Elongation in 50 mm, min25%
Hardness, max293 HBW

Single values are maximums unless marked min. Values per ASTM A240 (plate, sheet and strip); always confirm against the purchase specification and the mill test certificate.

Duplex UNS S32205 Pipes & Tubes for process, pressure and heat-transfer lines, available on MetalMitra in seamless, ERW and welded to ASTM A790, with mill-certified traceability on every lot.

Choose seamless, ERW, welded or fabricated construction across a broad spread of diameters, wall thicknesses, schedules and lengths for process, pressure and structural lines.

UNS S32205 is a 2205 duplex grade with tighter nitrogen and molybdenum ranges for improved pitting resistance. Duplex stainless steel has a two-phase austenitic-ferritic structure that delivers higher strength than standard austenitic grades together with good resistance to pitting, crevice corrosion and chloride stress corrosion cracking.

Product range

  • Seamless Pipes — The go-to choice for high-pressure and high-temperature lines.
  • ERW Pipes — Economical welded pipe for utility and process piping.
  • Welded / EFW Pipes — Fusion-welded construction for large-diameter runs.
  • Tubes — Round, square and rectangular tubes, plus U-bends for heat exchangers.

Why engineers choose it

  • High Strength — Roughly double the yield strength of standard 300-series grades.
  • Corrosion Resistance — Strong resistance to pitting, crevice and general corrosion.
  • SCC Resistance — Far better resistance to chloride stress corrosion cracking.
  • Cost Efficient — Thinner walls and long life trim material and lifecycle costs.

Where it is used

  • Oil & Gas
  • Chemical Processing
  • Petrochemical
  • Desalination
  • Marine Applications
  • Pulp & Paper
  • Heat Exchangers
  • Pressure Vessels
  • Water Treatment
  • Offshore Platforms
  • Fabrication
  • General Engineering

Inspection & paperwork

Suppliers on MetalMitra back Duplex UNS S32205 Pipes & Tubes with the checks and paperwork your QA team expects.

  • Dimensional & visual inspection
  • Grade verification against the order
  • Chemical composition verification
  • Mechanical property testing
  • Flattening / flaring tests as applicable
  • Hydrostatic testing as applicable
  • Ultrasonic / eddy current testing as applicable
  • EN 10204 3.1 Mill Test Certificate
  • Third-party inspection (TPI) on request

The MetalMitra advantage

  • Checked sellers only — Every supplier profile is screened by MetalMitra before it goes live.
  • Faster sourcing — Post one requirement and receive competitive offers without chasing calls.
  • Paperwork sorted — MTC 3.1, test reports and TPI arranged as your project demands.
  • Global logistics — Seaworthy packing and dispatch to project sites across the world.

Get a quote

Tell us the specification, quantity and destination you need for Duplex UNS S32205 Pipes & Tubes. MetalMitra connects you with suppliers who can deliver.

Technical note: Figures shown are indicative. Final acceptance should be based on the applicable standard, approved drawings and the MTC supplied with the material.

Applications & industries

  • Oil & Gas
  • Chemical Processing
  • Petrochemical
  • Desalination
  • Marine Applications
  • Pulp & Paper
  • Heat Exchangers
  • Pressure Vessels
  • Water Treatment
  • Offshore Platforms
  • Fabrication
  • General Engineering
  • Oil & Gas
  • Petrochemical & Refining
  • Chemical Processing
  • Water & Wastewater
  • Desalination
  • Marine & Shipbuilding
  • Pulp & Paper

Testing & documents

Ask for the documents you need in your requirement — suppliers confirm them in their quotation:

  • Mill test certificate to EN 10204 3.1, or 3.2 with third-party witness
  • Third-party inspection (TPI) by SGS, Bureau Veritas, TÜV or your nominated agency
  • Tests as the standard or your order requires: hydro, PMI, IGC, NDT, hardness or impact tests

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