Duplex & Super Duplex Steel Plates & Sheets Supplier, Stockist & Exporter
SteelNix supplies Duplex & Super Duplex Steel Plates & Sheets for marine, offshore, chemical processing, desalination, pressure vessels, heat exchangers, tanks, fabrication and high-corrosion industrial applications. Explore UNS S31803, UNS S32205, UNS S32750 and UNS S32760 grades in one complete product hub.
Quick Product Range
Duplex & Super Duplex Steel Plates & Sheets
SteelNix offers a complete Duplex & Super Duplex Steel Plates & Sheets range for buyers who need high strength, corrosion resistance and reliable performance in chloride-rich, marine, offshore and chemical environments. This single product page helps buyers compare major duplex and super duplex sheet and plate grades in one place.
One Complete Duplex Flat Product Range
Our Duplex & Super Duplex Steel Plates & Sheets range includes hot rolled plates, cold rolled sheets, cut plates, polished sheets and project-specific flat products. These grades are suitable for applications where pitting resistance, stress corrosion cracking resistance, strength and long service life are important.
Suitable for Industrial & Project Supply
SteelNix supports stockists, EPC contractors, fabricators, OEMs, offshore contractors, maintenance teams and industrial buyers with grade selection, material availability, MTC support, cutting support and export-ready supply for Duplex & Super Duplex Steel Plates & Sheets.
Specification, Chemical Composition & Mechanical Properties
The details below give buyers a practical overview of Duplex & Super Duplex Steel Plates & Sheets. Final specifications, chemical limits and mechanical values may vary by grade, thickness, heat treatment condition, finish and order requirement.
Product Specifications
SteelNix can supply Duplex & Super Duplex Steel Plates & Sheets in standard and project-based sizes. Share your grade, thickness, width, length, quantity and delivery location for accurate pricing.
| Product Detail | Specification |
|---|---|
| Product Name | Duplex & Super Duplex Steel Plates & Sheets |
| Product Forms | Sheets, Plates, Hot Rolled Plates, Cold Rolled Sheets, Cut Plates, Polished Sheets and Project-Specific Flat Products |
| Common Standards | ASTM, ASME, EN, DIN and equivalent project standards as per customer requirement |
| Available Grades | UNS S31803 Duplex Steel, UNS S32205 Duplex Steel, Super Duplex UNS S32750 and Super Duplex UNS S32760 |
| Common Finish | Hot rolled, cold rolled, annealed, pickled, polished, No.1, 2B and project-specific finishes |
| Common Applications | Marine structures, offshore platforms, chemical equipment, desalination plants, tanks, pressure vessels, heat exchangers, cladding and high-corrosion fabrication |
| Documents | Material Test Certificate, inspection reports, test certificates and dispatch documents as per order terms |
Chemical Composition
| Grade | Type | Key Elements | Key Feature | Typical Use |
|---|---|---|---|---|
| UNS S31803 | Duplex Stainless Steel | Chromium, nickel, molybdenum and nitrogen | Balanced corrosion resistance and strength | Marine fabrication, process equipment and general duplex applications |
| UNS S32205 | Duplex Stainless Steel | Chromium, nickel, molybdenum and nitrogen with improved control | Popular duplex grade for chloride-rich environments | Offshore structures, chemical equipment and pressure components |
| UNS S32750 | Super Duplex Stainless Steel | Higher chromium, molybdenum and nitrogen range | Excellent pitting and crevice corrosion resistance | Seawater, desalination, offshore and severe corrosion service |
| UNS S32760 | Super Duplex Stainless Steel | High chromium, molybdenum, nitrogen and controlled alloy additions | Strong performance in aggressive chloride and marine service | Oil & gas, subsea, marine and chemical processing applications |
Mechanical Properties
| Grade | Strength Level | Formability | Corrosion Performance | Service Area |
|---|---|---|---|---|
| UNS S31803 | High strength duplex grade | Good with correct fabrication practice | Good chloride stress corrosion cracking resistance | Marine, process and industrial fabrication |
| UNS S32205 | Improved duplex strength | Good weldability with proper procedure | Better corrosion performance than standard austenitic grades | Offshore, chemical and pressure equipment |
| UNS S32750 | Very high strength super duplex grade | Requires controlled forming and welding | Excellent pitting and crevice corrosion resistance | Seawater, desalination and severe chloride service |
| UNS S32760 | Very high strength super duplex grade | Requires suitable fabrication controls | Excellent marine and aggressive corrosion resistance | Subsea, marine, oil & gas and chemical environments |
Duplex & Super Duplex Steel Plates & Sheets Grades
Explore the complete Duplex & Super Duplex Steel Plates & Sheets range supplied by SteelNix for marine, offshore, chemical, desalination, pressure vessel, heat exchanger and high-corrosion fabrication applications.
Super Duplex Steel UNS S32750 Plates & Sheets
Premium super duplex flat product for seawater, offshore and severe corrosion service.
Ask PriceSuper Duplex Steel UNS S32760 Plates & Sheets
Designed for aggressive chloride, marine, subsea and chemical applications.
Ask PriceUNS S31803 Duplex Steel Plates & Sheets
Balanced duplex grade for process equipment, marine parts and fabrication.
Ask PriceUNS S32205 Duplex Steel Plates & Sheets
Popular duplex grade for chloride-rich environments and offshore fabrication.
Ask PriceApplications of Duplex & Super Duplex Steel Plates & Sheets
Duplex & Super Duplex Steel Plates & Sheets are selected for high strength, corrosion resistance, chloride resistance and long service life in demanding industrial applications.
Marine & Offshore
Used in offshore platforms, seawater systems, marine structures and exposed components.
Chemical Equipment
Suitable for tanks, vessels, process equipment and corrosive media handling.
Desalination Plants
Applied in brine systems, seawater equipment and chloride-rich environments.
Heat Exchangers
Used in tube sheets, baffles, plates and exchanger components exposed to corrosion.
Industries We Serve
SteelNix supports project buyers, stockists, EPC companies, OEMs, fabricators, offshore contractors and maintenance teams with Duplex & Super Duplex Steel Plates & Sheets.
Oil & Gas
Offshore structures, subsea components, process equipment and chloride-exposed parts.
Marine
Shipbuilding components, seawater systems, decks, structures and marine equipment.
Chemical Plants
Process vessels, tanks, equipment panels and severe corrosion fabrication.
Water Treatment
Desalination, brine handling, filtration plants and high-corrosion water systems.
Testing & Documents
SteelNix can arrange documentation and inspection support based on product grade, quantity, project specification and order terms.
MTC
Material Test Certificate can be provided for supplied Duplex & Super Duplex Steel Plates & Sheets.
PMI Testing
Positive Material Identification can be arranged where required by the buyer.
Corrosion Testing
Additional corrosion testing support can be arranged based on project specifications.
Third-Party Inspection
Third-party inspection support can be offered as applicable to order terms.
Frequently Asked Questions
Helpful answers for buyers searching for Duplex & Super Duplex Steel Plates & Sheets from SteelNix.
Which Duplex & Super Duplex Steel Plates & Sheets grades does SteelNix supply?
SteelNix supplies UNS S31803 Duplex Steel, UNS S32205 Duplex Steel, Super Duplex UNS S32750 and Super Duplex UNS S32760 plates and sheets.
What are Duplex & Super Duplex Steel Plates & Sheets used for?
They are used in marine structures, offshore platforms, chemical equipment, desalination plants, tanks, pressure vessels, heat exchangers and high-corrosion fabrication projects.
What is the difference between duplex and super duplex plates?
Duplex plates offer high strength and good corrosion resistance. Super duplex plates offer higher strength and better resistance to pitting, crevice corrosion and aggressive chloride environments.
Which grade is commonly used for offshore and marine applications?
UNS S32205, UNS S32750 and UNS S32760 are commonly used for offshore, marine and chloride-rich environments. Final grade selection should follow the project specification.
Are UNS S31803 and UNS S32205 both duplex steel grades?
Yes, UNS S31803 and UNS S32205 are duplex stainless steel grades. UNS S32205 is commonly used where improved chemistry control and strong corrosion performance are required.
Can SteelNix provide Material Test Certificates?
Yes, Material Test Certificates and inspection documents can be provided as per order terms, product availability and customer requirements.
How can I get a price for Duplex & Super Duplex Steel Plates & Sheets?
To receive a quotation, share the grade, thickness, width, length, quantity, finish, standard, delivery location and any inspection or documentation requirement.
Need Duplex & Super Duplex Steel Plates & Sheets?
Share your required grade, thickness, width, length, finish, quantity, standard and delivery location. SteelNix will help you with material availability, pricing and technical support.