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Hakan Nickel Alloys, a reputable manufacturer and supplier located in Istanbul, Turkey, specializes in top-notch Duplex Steel Pipes designed for exceptional strength and resistance to corrosion. These pipes are celebrated for their outstanding performance in harsh, chloride-rich environments, effectively merging the advantages of both austenitic and ferritic stainless steels. Crafted using cutting-edge technology and rigorous quality control measures, the Duplex Steel Pipes from Hakan Nickel Alloys promise durability, reliability, and an extended service life, making them ideal for a variety of applications in the chemical, petrochemical, marine, oil & gas, and power generation sectors around the globe.
Duplex Steel Pipes are made up of chromium (19–23%), nickel (4–6%), molybdenum (2–3%), and nitrogen, with iron serving as the primary element. This composition significantly boosts their resistance to stress corrosion cracking and pitting. They boast impressive mechanical properties, with tensile strength ranging from 700–900 MPa, and a yield strength that is nearly double that of standard stainless steels, along with excellent fatigue resistance. These pipes maintain their dimensional stability and toughness across a wide range of temperatures, ensuring they perform reliably in even the most demanding conditions.
| Specifications | Cr | Ni | Mo | N | Mn | W | Cu |
| 2101 LDX | 21.5 | 1.5 | 0.3 | 0.22 | 5 | – | – |
| DX2202 | 23 | 2.5 | 0.3 | 0.2 | 1.5 | – | – |
| RDN 903 | 20 | 1.8 | 0.2 | 0.11 | 4.2 | – | – |
| 2304 | 23 | 4.8 | 0.3 | 0.10 | – | – | – |
| 2205 | 22 | 5.7 | 3.1 | 0.17 | – | – | – |
| Grade | C≤ | Mn≤ | P≤ | S≤ | Si≤ | Ni | Cr | Mo | N | Cu |
| S31803 | 0.03 | 2.00 | 0.03 | 0.02 | 1.00 | 4.5–6.5 | 21.0–23.0 | 2.5–3.5 | 0.08–0.20 | – |
| S32205 | 0.03 | 2.00 | 0.03 | 0.02 | 1.00 | 4.5–6.5 | 22.0–23.0 | 3.0–3.5 | 0.14–0.20 | – |
| S32750 | 0.03 | 1.20 | 0.035 | 0.02 | 0.80 | 6.0-8.0 | 24.0-26.0 | 3.0-5.0 | 0.24-0.32 | 0.5 |
| Mechanical properties | Tensile,min,ksi[MPa] | Yield,min,ksi[MPa] | Elongation,%(min) | Hardness,HB(max) |
| S31803 | 90 [620] | 65 [450] | 25 | 290 |
| S32205 | 95 [655] | 65 [450] | 25 | 290 |
| S32750 | 116 [800] | 80 [550] | 15 | 300 |
At Hakan Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Pipe 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 Pipes find extensive use in industries that demand both strength and corrosion resistance, such as chemical and petrochemical facilities where they transport aggressive chemicals and fluids. In marine and offshore settings, they are essential for seawater systems, desalination plants, and various structural components. The oil and gas sector depends on them for pipelines, risers, and subsea equipment, where durability and performance are paramount. Their unique combination of mechanical strength, corrosion resistance, and long-term reliability makes Duplex Steel Pipes a vital choice for high-performance industrial applications.
