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Ashraf Nickel Alloys stands out as a top-notch **manufacturer and supplier of Duplex Steel Pipes** in Riyadh, Saudi Arabia, providing high-performance piping solutions designed for tough, corrosive, and high-pressure environments. Crafted from high-quality Duplex stainless steel grades like UNS S32205 (Duplex 2205), these pipes boast remarkable strength and outstanding resistance to stress corrosion cracking, pitting, and crevice corrosion. Ashraf Nickel Alloys offers Duplex Steel Pipes in both seamless and welded forms, adhering to international standards such as ASTM A790 and ASTM A928, and catering to essential industries like oil & gas, marine, petrochemical, and water treatment throughout Saudi Arabia and the GCC.
| 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 |
In Riyadh, Ashraf Nickel Alloys’ Duplex Steel Pipes are extensively utilized in offshore platforms, chemical plants, desalination facilities, structural applications, and energy infrastructure. With a strong commitment to quality control, precision engineering, and timely delivery, Ashraf Nickel Alloys is dedicated to bolstering Saudi Arabia’s industrial growth by providing reliable and durable Duplex piping solutions.
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Duplex steel pipes are widely used in industries requiring high strength and corrosion resistance, such as oil and gas, petrochemical, and chemical processing. They are ideal for offshore platforms, pipelines, heat exchangers, and pressure vessels due to their ability to withstand harsh environments, including seawater and aggressive chemicals. These pipes are also employed in desalination plants, power generation, and wastewater treatment facilities, where durability and resistance to stress corrosion cracking are crucial for long-term performance.
