Duplex 2205 Round Bars are high-strength stainless steel products widely used in industries that require excellent corrosion resistance and superior mechanical performance. These bars are known for their durability and ability to perform reliably in harsh environments such as offshore, marine, and chemical processing applications. Sumit Impex, a trusted manufacturer and supplier in Mumbai, India, offers premium-quality Duplex Steel S31803 Round Bars that are manufactured with strict quality standards to ensure long service life and dependable performance in demanding industrial conditions.
Sumit Impex is a Supplier of Duplex Steel S31803 Round Bar, Biggest Stockist of Duplex Steel S31803 Round Bars as per Standards in Mumbai, India.
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The Duplex 2205 Round Bar is manufactured from duplex stainless steel grade UNS S31803 / UNS S32205, also known as EN 1.4462. This material features a dual microstructure of austenite and ferrite, providing a combination of high strength and excellent resistance to corrosion. The alloy typically contains chromium, nickel, molybdenum, and nitrogen, which enhance its resistance to pitting, crevice corrosion, and chloride-induced stress corrosion cracking.
Due to its balanced chemical composition and mechanical strength, S31803 Duplex Steel Round Bars are commonly used in oil and gas processing equipment, heat exchangers, chemical processing systems, and marine structures. The material also offers high yield strength—nearly double that of many conventional austenitic stainless steels—making Duplex Steel 2205 Bars suitable for applications that require both structural strength and corrosion resistance in aggressive environments.

Duplex S31803 Round Bar Specifications
| Specifications | ASTM A182, ASTM A479, AMS 5513, AMS 5511, AMS 5647 |
| Dimension Standard | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Bar Diameter | 3 ~ 800mm |
| Hex Bar size | 2-100mm A/F |
| Flat bar size | Thickness: 2 -100mm. Width: 10 to 500mm. |
| Square bar size | 4 to 100mm |
| Rectangular Bars | Size: 33 x 30mm to 295 x 1066mm. Thickness: 3.0 to 12.0mm. |
| Hollow Bars | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| Billet Size | 1/2 to 495mm Diameter |
| Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients requirements |
| Bar Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| Rolled Bars Condition | Hardened & tempered, annealed |
| Cold Rolled Bar Technique | Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Form | Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
Types of Duplex Steel S31803 Round Bar
Square Bar
Square Bar
Flat Bar
Flat Bar
Hex Bar
Hex Bar
Bright Bar
Bright Bar
Threaded Rod
Threaded Rod
Rectangular Bar
Rectangular Bar
Polished Bar
Polished Bar
Forged Bars
Forged Bars
Duplex Steel S31803 Round Bars Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex Steel | 1.4462 | S31803 |
Duplex Steel S31803 Round Bar Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
Duplex Steel S31803 Round Bars Mechanical Properties
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
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Duplex Steel S31803 Round Bars Applications
Export & Supply Destinations Of Duplex Steel S31803 Round Bars
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Ukraine, Czechia/Czech Republic, Portugal, Spain, Slovakia, Ireland, Cyprus, Belgium, Turkey., Italy, Moldova, Romania, Russia, Austria, Hungary, Germany, Sweden, Malta, Serbia, Poland, Luxembourg, Liechtenstein, Netherlands, United Kingdom, Denmark, Estonia, Switzerland, Azerbaijan, Lithuania, France, Belarus, Greece, Bulgaria, Croatia, Latvia, Norway, Monaco, Finland.
Algeria, Mauritius, Angola, Tanzania, Kenya, Gambia, Cameroon, Madagascar, Namibia., Morocco, Seychelles, Central African Republic, South Africa, Egypt, Nigeria, Rwanda, Senegal, Liberia, Libya, Zimbabwe, Mauritania, Mozambique, Ethiopia, Burundi, Burkina Faso, Botswana, Zambia, Tunisia, Niger, Uganda, Eswatini.
Antigua and Barbuda, Canada, Cuba, Haiti, Panama, Jamaica, Belize, Honduras, Dominican Republic, Barbados, Saint Vincent and the Grenadines, Trinidad and Tobago, Mexico, El Salvador, United States of America, Guatemala, Costa Rica, Nicaragua, Bahamas, Grenada, Saint Lucia, Dominica.
Peru, Colombia, Chile, Guyana, Uruguay, Paraguay, Brazil, Argentina, Bolivia, Venezuela, Suriname, Ecuador.













