SS Duplex UNS S31803 / UNS S32205 (2205) Sheets and Plates Dealers and Importers

SS Duplex 2205 Stainless Steel Sheets and Plates Supplier

SS Duplex UNS S31803 / UNS S32205 (2205) Sheets and Plates

Petrofit Alloys And Engineering LLP is a reliable supplier, dealer and importer of Duplex Stainless Steel UNS S31803 and UNS S32205 (2205) sheets and plates used in highly demanding industrial environments. Duplex stainless steel 2205 is known for its combination of high strength and excellent resistance to corrosion, particularly in chloride-rich environments.

SS Duplex 2205 sheets and plates are widely used in offshore structures, petrochemical plants, desalination systems and chemical processing equipment. The duplex microstructure, which contains both austenitic and ferritic phases, provides improved resistance to stress corrosion cracking and pitting corrosion compared to conventional stainless steels.

For applications requiring extremely high resistance to acidic environments, industries sometimes use SS 904L sheets and plates. However, duplex stainless steel 2205 is often preferred when both corrosion resistance and high mechanical strength are required.

As part of our broader stainless steel sheets and plates supply, Petrofit maintains ready inventory of Duplex 2205 materials in multiple thickness ranges, finishes and dimensions to support fabrication companies, EPC contractors and industrial distributors worldwide.

Duplex 2205 Sheet and Plate Specifications

Specification Details
Material Grade Duplex Stainless Steel 2205
UNS Number S31803 / S32205
Standard ASTM A240 / ASME SA240
Type Sheet, Plate, Coil
Thickness 0.3 mm – 120 mm
Width 1000 mm, 1250 mm, 1500 mm, 2000 mm
Surface Finish 2B, No.4, Hairline, Polished
Production Process Hot Rolled / Cold Rolled

Chemical Composition of Duplex 2205

Element Percentage
Carbon 0.03% max
Chromium 21.00 – 23.00%
Nickel 4.50 – 6.50%
Molybdenum 2.50 – 3.50%
Nitrogen 0.08 – 0.20%
Manganese 2.00% max
Silicon 1.00% max

The balanced chromium, molybdenum and nitrogen content improves resistance to pitting corrosion and chloride stress corrosion cracking.

Mechanical Properties

Property Value
Tensile Strength 620 MPa min
Yield Strength 450 MPa min
Elongation 25% min
Hardness 293 HB max

These mechanical properties provide significantly higher strength compared to standard austenitic stainless steels.

Key Features of Duplex 2205 Sheets and Plates

Duplex 2205 stainless steel is widely used in industries requiring both strength and corrosion resistance.

Important features include:

  • Excellent resistance to pitting and crevice corrosion
  • Strong resistance to chloride stress corrosion cracking
  • High mechanical strength compared to conventional stainless steels
  • Good performance in marine and offshore environments
  • Good weldability and fabrication properties

Applications of Duplex 2205 Sheets and Plates

Duplex stainless steel 2205 sheets and plates are commonly used in industries where materials must withstand corrosive environments and high mechanical loads.

  • Offshore oil and gas platforms
  • Petrochemical and refinery equipment
  • Seawater desalination plants
  • Chemical processing systems
  • Heat exchangers and pressure vessels
  • Marine structural components

Equivalent Grades

Standard Equivalent Grade
ASTM / ASME Duplex 2205
UNS S31803 / S32205
EN 1.4462
JIS SUS329J3L
DIN X2CrNiMoN22-5-3

Export Supply

From India, Petrofit exports Duplex 2205 sheets and plates to industrial distributors, engineering companies and project contractors worldwide.

Our export markets include:

  • Middle East – Saudi Arabia, Qatar, Oman, Kuwait, Bahrain
  • Asia Pacific – Malaysia, Singapore, Australia
  • Europe – Germany, Italy, Netherlands, Spain, UK
  • North America – United States and Canada

Why Choose Petrofit for Duplex 2205 Sheets and Plates

Industrial buyers require dependable suppliers capable of delivering high-quality materials along with reliable logistics and documentation.

Petrofit offers:

  • Extensive inventory of stainless steel sheets and plates
  • Competitive pricing for EPC and fabrication projects
  • Global export experience across industrial sectors
  • Compliance with international material standards
  • Material traceability and inspection certificates
  • Efficient shipment coordination for global delivery

Frequently Asked Questions

Q: What is Duplex 2205 stainless steel used for?

A: Duplex 2205 stainless steel is commonly used in offshore oil and gas systems, chemical processing equipment, desalination plants and marine engineering structures.

Q: What is the difference between UNS S31803 and UNS S32205?

A: Both grades are duplex stainless steel 2205, but UNS S32205 has a tighter composition range, which improves corrosion resistance and mechanical performance.

Q: Why is Duplex 2205 stronger than standard stainless steels?

A: Duplex stainless steel contains both ferritic and austenitic microstructures, which provide higher strength and improved corrosion resistance compared to conventional stainless steels.

Q: Do you supply Duplex 2205 sheets and plates with certification?

A: Yes. Petrofit supplies Duplex 2205 materials with EN 10204 3.1 material test certificates along with inspection documentation when required.

Request a Quote

If you are searching for reliable SS Duplex UNS S31803 / UNS S32205 (2205) sheet and plate dealers and importers, Petrofit Alloys And Engineering LLP can assist with product specifications, stock availability and delivery schedules.

Contact our team to request technical information, pricing or quotations for your industrial project requirements.

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