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Hakan Nickel Alloys, a prominent manufacturer and supplier located in Istanbul, Turkey, specializes in top-notch Duplex Steel S31803 Tubing, designed for exceptional strength and remarkable resistance to corrosion. These tubes are celebrated for their impressive performance in harsh, chloride-rich environments, blending the advantages of both ferritic and austenitic stainless steels. Crafted with meticulous attention to global standards, the Duplex Steel S31803 Tubing from Hakan Nickel Alloys guarantees durability, precise dimensions, and a long lifespan, making it perfect for demanding applications in the chemical, petrochemical, marine, oil & gas, and power generation sectors.
Duplex Steel S31803 Tubing is made up of iron (the balance), chromium (19–22%), nickel (4–6%), molybdenum (2–3%), and nitrogen, which boosts its strength and resistance to pitting and stress corrosion cracking. It boasts impressive tensile strength ranging from 700–900 MPa, with a yield strength that is nearly double that of standard austenitic steels, along with excellent fatigue and impact resistance. This tubing maintains its dimensional stability and toughness across a broad temperature range, ensuring reliable performance even in tough and corrosive environments.
| Specifications | : | ASTM A789 ASME SA789 |
| Dimensions | : | ASTM, ASME and API |
| Tube Size | : | 1/2″NB TO 12 “NB IN |
| Specialized in | : | Large Diameter Size |
| Schedule | : | SCH20, SCH30, SCH40, STD, SCH80 |
| Type | : | Seamless / ERW / Welded / Fabricated |
| Form | : | Round, Hydraulic Etc |
| Length | : | Single Random, Double Random & Cut Length. |
| End | : | Plain End, Beveled End, Treaded |
| S31803 | C | N | P | Si | Mn | Mo | Fe | Cr | S | Ni |
| 1.0 | 0.03 | 0.02 | 2.0 | 3.0 – 3.5 | 22.0 – 23.0 | 0.03 | 4.5 – 6.5 | 0.14 – 0.2 | Bal |
| S31803 | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
At Hakan Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Tubing in Istanbul, Turkey, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Turkey, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Duplex Steel S31803 Tubing finds extensive use in the chemical and petrochemical industries for process piping, heat exchangers, and pressure vessels that come into contact with aggressive chemicals. In marine and offshore settings, it’s utilized in seawater systems, desalination plants, and structural components that require high durability and resistance to chloride corrosion. The oil and gas industries rely on this tubing for risers, flowlines, and subsea equipment. Its unique combination of high mechanical strength, corrosion resistance, and longevity makes Duplex Steel S31803 Tubing a vital choice for critical, high-performance industrial applications.