Duplex & Super Duplex Steel Round Bars Supplier, Stockist & Exporter
SteelNix supplies Duplex & Super Duplex Steel Round Bars for shafts, fasteners, valves, pumps, marine hardware, offshore components, chemical processing equipment, oil & gas parts and high-corrosion engineering applications. Explore F51, F60, F53, F55, UNS S31803, UNS S32205, UNS S32750, UNS S32760 and UNS S32900 grades in one complete product hub.
Quick Product Range
Duplex & Super Duplex Steel Round Bars
SteelNix offers a complete Duplex & Super Duplex Steel Round Bars range for buyers who need high strength, excellent corrosion resistance and reliable performance in chloride-rich, marine, offshore and chemical environments. This single product page helps buyers compare all major duplex and super duplex round bar grades in one place.
One Complete Duplex Bar Range
Our Duplex & Super Duplex Steel Round Bars range includes black bars, bright bars, forged bars, peeled bars, polished bars and machined bars. These grades are suitable for applications where strength, pitting resistance, stress corrosion cracking resistance and long service life are important.
Suitable for Industrial & Project Supply
SteelNix supports stockists, OEMs, fabricators, machining shops, offshore contractors, maintenance teams and industrial buyers with grade selection, material availability, MTC support and export-ready supply for Duplex & Super Duplex Steel Round Bars.
Specification, Chemical Composition & Mechanical Properties
The details below give buyers a practical overview of Duplex & Super Duplex Steel Round Bars. Final specifications, chemical limits and mechanical values may vary by grade, heat treatment condition, diameter, tolerance and order requirement.
Product Specifications
SteelNix can supply Duplex & Super Duplex Steel Round Bars in standard and project-based sizes. Share your grade, diameter, length, quantity and delivery location for accurate pricing.
| Product Detail | Specification |
|---|---|
| Product Name | Duplex & Super Duplex Steel Round Bars |
| Product Forms | Round Bars, Bright Bars, Black Bars, Forged Bars, Peeled Bars, Polished Bars, Rough Turned Bars and Machined Bars |
| Common Standards | ASTM, ASME, EN, DIN and equivalent project standards as per customer requirement |
| Available Grades | F51 Duplex Steel, F60 Duplex Steel, Super Duplex F53, Super Duplex F55, UNS S31803, UNS S32205, UNS S32750, UNS S32760 and UNS S32900 |
| Common Finish | Black, bright, peeled, polished, forged, rough turned and machined finish as per requirement |
| Common Applications | Shafts, fasteners, valves, pumps, marine hardware, offshore components, chemical equipment, oil & gas parts and high-corrosion engineering components |
| Documents | Material Test Certificate, inspection reports, test certificates and dispatch documents as per order terms |
Chemical Composition
| Grade Group | Type | Key Elements | Key Feature | Typical Use |
|---|---|---|---|---|
| F51 / UNS S31803 | Duplex Stainless Steel | Chromium, nickel, molybdenum and nitrogen | Balanced strength and corrosion resistance | Marine parts, process components and general duplex applications |
| F60 / UNS S32205 | Duplex Stainless Steel | Chromium, nickel, molybdenum and nitrogen with improved control | Popular duplex grade for chloride-rich environments | Offshore components, valves, pumps and chemical equipment |
| F53 / UNS S32750 | Super Duplex Stainless Steel | Higher chromium, molybdenum and nitrogen range | Excellent pitting and crevice corrosion resistance | Seawater, offshore, desalination and severe corrosion components |
| F55 / 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 parts |
| UNS S32900 | Duplex Stainless Steel | Chromium, nickel and molybdenum based duplex chemistry | Good strength and corrosion resistance for industrial service | Shafts, pump parts, marine hardware and process equipment |
Mechanical Properties
| Grade Group | Strength Level | Machinability | Corrosion Performance | Service Area |
|---|---|---|---|---|
| F51 / UNS S31803 | High strength duplex grade | Good with proper tooling and process control | Good resistance to chloride stress corrosion cracking | Marine, chemical and industrial components |
| F60 / UNS S32205 | Improved duplex strength | Good with correct machining practice | Better corrosion performance than standard austenitic grades | Offshore, oil & gas and process equipment |
| F53 / UNS S32750 | Very high strength super duplex grade | Requires suitable tooling and controlled machining | Excellent pitting and crevice corrosion resistance | Seawater, desalination and severe chloride service |
| F55 / UNS S32760 | Very high strength super duplex grade | Requires controlled machining practice | Excellent marine and aggressive corrosion resistance | Subsea, marine, oil & gas and chemical environments |
| UNS S32900 | Grade-specific duplex strength | Good with proper machining setup | Good corrosion resistance in industrial environments | Pump shafts, valves, fittings and engineered components |
Duplex & Super Duplex Steel Round Bar Grades
Explore the complete Duplex & Super Duplex Steel Round Bars range supplied by SteelNix for shafts, fasteners, valves, pumps, marine hardware, offshore components and high-corrosion engineering applications.
F51 Duplex Steel Round Bar
Common duplex round bar grade for strength and corrosion resistance.
Ask PriceF60 Duplex Steel Round Bar
Popular duplex grade for offshore, chemical and chloride-rich service.
Ask PriceSuper Duplex Steel F53 Round Bar
High-strength super duplex bar for seawater and severe corrosion use.
Ask PriceSuper Duplex Steel F55 Round Bar
Premium super duplex grade for marine, subsea and chemical service.
Ask PriceSuper Duplex Steel UNS S32750 Round Bar
Excellent pitting resistance for offshore, seawater and desalination use.
Ask PriceSuper Duplex Steel UNS S32760 Round Bar
Severe-service super duplex bar for aggressive chloride environments.
Ask PriceUNS S31803 Duplex Steel Round Bar
Balanced duplex grade for process, marine and engineering components.
Ask PriceUNS S32205 Duplex Steel Round Bar
Widely used duplex bar grade for chloride and offshore applications.
Ask PriceUNS S32900 Duplex Steel Round Bar
Duplex round bar for shafts, pump parts and industrial components.
Ask PriceApplications of Duplex & Super Duplex Steel Round Bars
Duplex & Super Duplex Steel Round Bars are selected for high strength, corrosion resistance, chloride resistance and long service life in demanding applications.
Shafts & Machined Parts
Used for pump shafts, valve stems, pins, bushings and precision machined components.
Marine & Offshore
Suitable for marine hardware, offshore fasteners, subsea parts and seawater systems.
Valves & Pumps
Used in valve parts, pump shafts, impellers and corrosion-resistant assemblies.
Chemical Equipment
Applied in chemical processing components and chloride-rich industrial environments.
Industries We Serve
SteelNix supports project buyers, stockists, OEMs, fabricators, machining shops and maintenance teams with Duplex & Super Duplex Steel Round Bars.
Oil & Gas
Offshore components, subsea parts, valves, pumps and corrosion-resistant hardware.
Marine
Seawater components, marine fasteners, shafts and exposed hardware.
Chemical Plants
Process equipment, pump parts, valve components and corrosive media applications.
Engineering
Machined parts, critical components, fasteners and high-strength industrial parts.
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 Round Bars.
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.
Inspection
Visual, dimensional and third-party inspection support can be offered as applicable.
Frequently Asked Questions
Helpful answers for buyers searching for Duplex & Super Duplex Steel Round Bars from SteelNix.
Which Duplex & Super Duplex Steel Round Bar grades does SteelNix supply?
SteelNix supplies F51 Duplex Steel, F60 Duplex Steel, Super Duplex F53, Super Duplex F55, Super Duplex UNS S32750, Super Duplex UNS S32760, UNS S31803, UNS S32205 and UNS S32900 round bars.
What are Duplex & Super Duplex Steel Round Bars used for?
They are used for shafts, fasteners, valve parts, pump components, marine hardware, offshore components, chemical processing equipment and oil & gas applications.
What is the difference between duplex and super duplex round bars?
Duplex round bars offer high strength and good corrosion resistance. Super duplex round bars offer higher strength and better resistance to pitting, crevice corrosion and chloride-rich environments.
Which grades are commonly used for marine and offshore applications?
F60, F53, F55, UNS S32205, UNS S32750 and UNS S32760 are commonly used for marine, offshore and chloride-rich environments. Final selection should follow the project specification.
Are F51 and UNS S31803 related?
F51 is commonly associated with duplex stainless steel round bar requirements, and UNS S31803 is a widely used duplex grade. Exact grade selection should be confirmed against the required standard and order specification.
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 Round Bars?
To receive a quotation, share the grade, diameter, length, quantity, finish, standard, delivery location and any inspection or documentation requirement.
Need Duplex & Super Duplex Steel Round Bars?
Share your required grade, diameter, length, finish, quantity, standard and delivery location. SteelNix will help you with material availability, pricing and technical support.