Home > Duplex Steel > Duplex Steel 2205 Pipe
Themban Nickel Alloys, a leading manufacturer and distributor based in Cape Town , Cape Town, specializes in high-quality Duplex Steel Pipes 2205. Renowned for their exceptional strength, corrosion resistance, and durability, these pipes are designed to meet the rigorous demands of industries such as petrochemical, marine, and chemical processing. As a trusted name in the region, Themban Nickel Alloys is committed to providing top-tier products that adhere to the highest standards, ensuring reliable performance in even the most challenging environments. With a focus on customer satisfaction, we offer tailored solutions to meet your specific industrial needs.
| 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 | – |
| 2205 | 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 |
| 2205 | 95 [655] | 65 [450] | 25 | 290 |
| S32750 | 116 [800] | 80 [550] | 15 | 300 |
The composition of Themba Nickel Alloys’ Duplex Steel 2205 Pipes includes a balance of iron, along with 21% chromium, 5–6.5% nickel, and 2.5–3% molybdenum, plus trace amounts of nitrogen, manganese, and silicon. This unique mix gives the pipes remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in environments rich in chlorides and oxidizing agents. They boast excellent mechanical properties, with a tensile strength ranging from about 620 to 880 MPa and a yield strength between 450 and 620 MPa. Plus, they offer high toughness, ductility, and fatigue resistance, ensuring they perform reliably even under extreme temperatures, pressures, and chemical exposures.
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Duplex Steel 2205 Pipes are a go-to choice in industries that need corrosion-resistant, high-strength, and durable piping solutions. They’re perfect for chemical processing plants, oil and gas pipelines, desalination facilities, heat exchangers, marine and offshore structures, and power generation systems. These pipes maintain their structural integrity, resist scaling, deformation, and corrosion, and promise long-term durability in aggressive environments. With Themba Nickel Alloys’ Duplex Steel 2205 Pipes, you’re guaranteed safe, high-performance, and reliable solutions, making them a top pick for critical industrial applications worldwide.
