Stainless Steel Sheets & Plates

Duplex Steel Plates, Sheets & Coils

ASTM A240 · Coils, foils and rolls

Duplex Steel Plates, Sheets & Coils

Duplex Steel Plates, Sheets & Coils in coils, foils and rolls to ASTM A240. Get quotes from verified suppliers on MetalMitra.

  • Duplex Steel Plates
  • Sheets & Coils
  • Plates
  • Sheets
  • Coils
  • Strips
  • Circles
  • Cut to Size

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

Specifications

SpecificationsASTM A240 / ASME SA240
DimensionsASTM, ASME and API
GradeUNS NO. S 31803, S 32205, S 32550, S 32750, S 32760
Size1 MM TO 200 MM THK IN 1000 MM TO 3000 MM WIDTH x 2500 MM / 5000 MM / 10000 MM / COIL
FinishHot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
SpecializeShim Sheet, Perforated Sheet, B. Q. Profile
HardnessSoft, Hard, Half Hard, Quarter Hard, Spring Hard etc
FormCoils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange)

Grades & standards

  • ASTM A240

Need a dependable duplex flat-rolled material? Duplex Steel Plates, Sheets & Coils on MetalMitra come in coils, foils and rolls to ASTM A240, ready for fabrication, vessels and cladding.

Duplex Steel Plates, Sheets & Coils are flat-rolled products supplied as hot-rolled plates, cold-rolled sheets, coils, strips and cut shapes for fabrication, pressure vessels and process equipment.

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.

Available forms & variants

  • Hot Rolled Plates — Heavier thickness plates for structural and pressure work.
  • Cold Rolled Sheets — Thin sheets with smooth surface finish.
  • Coils & Strips — Coils and slit strips for continuous processing.
  • Circles & Cut Shapes — Blanks, circles, rings and profile-cut pieces.

Performance highlights

  • 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.

Typical applications

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

Quality checks & certification

Every lot of Duplex Steel Plates, Sheets & Coils sourced through MetalMitra can be inspected and documented to the governing standard and your purchase order.

  • Thickness & dimensional inspection
  • Flatness and surface inspection
  • Grade verification against the order
  • Chemical composition verification
  • Mechanical testing as applicable
  • Ultrasonic testing as applicable
  • EN 10204 3.1 Mill Test Certificate
  • Third-party inspection (TPI) on request

Material properties

Chemical composition and mechanical properties are supplied to the limits of the governing material standard. Actual heat values are reported on the mill test certificate shared with each consignment.

Why buy through MetalMitra

  • Verified suppliers — Mills, manufacturers and stockists are reviewed by the MetalMitra team before they list.
  • One RFQ, several quotes — Share size, grade and quantity once and compare offers side by side.
  • Full traceability — Heat numbers, EN 10204 3.1 MTCs and third-party inspection on request.
  • Delivered worldwide — Export-worthy packing and shipping to India, the Middle East, Africa, Europe and the Americas.

Ready to buy?

Send your size, grade, quantity and delivery location for Duplex Steel Plates, Sheets & Coils, and matching suppliers on MetalMitra will come back with offers.

Technical note: Values on this page are for reference. Always confirm against the governing standard, your purchase specification and the mill test certificate.

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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