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- Tunis, Tunisia
Home > Duplex Steel > Duplex Steel Tubing S31803
Samia Pipes and Tubes is a dependable manufacturer and supplier of Duplex Steel Tubing S31803, operating from Tunis, Tunisia. As the classic 2205 duplex grade, S31803 is engineered to deliver exceptional strength and corrosion resistance in demanding industrial environments. Manufactured with precise control, modern processing methods, and rigorous quality checks, Samia Pipes and Tubes supplies tubing that performs reliably under pressure, heat, and aggressive media. The company is trusted for consistent quality, technical reliability, and tubing solutions built for long-term performance where failure is not an option.
This Duplex Steel Tubing S31803 is made up of chromium (21–23%), nickel (4.5–6.5%), molybdenum (2.5–3.5%), nitrogen, and trace elements, creating a well-balanced microstructure of austenite and ferrite. It boasts high mechanical strength, impressive corrosion resistance, and superior toughness compared to regular stainless steels. With a tensile strength of about 620 MPa and a yield strength exceeding 450 MPa, it offers remarkable resistance to stress corrosion cracking, pitting, and crevice corrosion, making it a reliable choice for demanding industrial applications.
| Standard | : | ASTM A790 / ASME SA790 UNS S31803, S32205, S32550, S32750, S32760 |
| Materials | : | ASTM A815 – UNS S31803 |
| Size | : | 1/2″NB TO 12 “NB IN |
| Seamless Pipes & Tubes Sizes | : | 1/2” NB – 8” NB |
| Welded Pipes & Tubes Sizes | : | 6” NB – 24” NB |
| Schedule | : | SCH20, SCH30, SCH40, STD, SCH80 |
| Type | : | Welded / Fabricated / Seamless |
| Length | : | Single Random, Double Random & Cut Length. |
| Thickness | : | 0.5-45mm |
| Outer Diameter | : | 6.0-630mm |
| Dimensions | : | OD(6.0-630)*WT(0.5-45)mm |
| Duplex Steel | Ni | Fe | C | Mn | Si | Mo | Cr | P | S |
| Bal | 0.03 | 1.o | 3.0 – 3.5 | 2.0 | 22.0 – 23.0 | 4.5 – 6.5 | 0.02 | 0.14 – 0.2 |
| STANDARD | UNS | WERKSTOFF NR. |
| Duplex Steel | S31803 | 1.4462 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 116000 , MPa – 800 | Psi – 80000 , MPa – 550 | 15 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Duplex Steel Tubing S31803 from Samia Pipes and Tubes ensures superior quality and durability, offering outstanding corrosion resistance and high strength. Our dedication to delivering exceptional service and reliable products guarantees customer satisfaction across a wide range of industrial applications. With our expertise in Duplex steel solutions, you can trust us to provide a top-tier, customized piping solution that meets your specific requirements.
Samia Pipes and Tubes, one of the largest suppliers of Duplex Steel Tubing S31803 in the Tuniss, Tunisia. Offers a wide range of high-quality pipes and tubes designed for various industrial applications. Their extensive inventory and dedication to exceptional service make them a trusted choice for Duplex steel products in the region, delivering reliable solutions to meet diverse project requirements.
Yes, we provide custom sizes for Duplex Steel Tubing S31803 to meet your specific requirements. At Samia Pipes and Tubes, our team is dedicated to delivering tailored solutions for all your piping and tubing needs. For more information, please contact us at sales@samiapipes.com.
Duplex Steel Tubing S31803 finds extensive use in industries that require both high strength and corrosion resistance. In the oil and gas sector, it’s commonly used in pipelines, risers, and subsea equipment due to its ability to endure seawater and chloride-induced stress. The chemical and petrochemical industries rely on it for heat exchangers, process piping, and pressure vessels. Additionally, it’s utilized in marine applications, power plants, and desalination plants where durability and resistance to harsh environments are crucial. The long service life and cost-effectiveness of this tubing make it a favored material for critical operations.
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