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At Nasir Nickel Alloys in Manama, Bahrain, Duplex Steel Pipe is engineered to offer superior strength, corrosion resistance, and durability for demanding industrial applications. Featuring a balanced austenitic-ferritic microstructure, this pipe resists pitting, crevice corrosion, and stress-corrosion cracking, even in chloride-rich and chemically aggressive environments. Manufactured with precision to ensure dimensional stability and consistent mechanical properties, Duplex Steel Pipe provides reliable, leak-tight performance under high-pressure and high-temperature conditions. Ideal for chemical processing, petrochemical, oil and gas, power generation, and marine industries, it delivers robust, long-lasting, and high-performance solutions for critical piping systems.
Duplex Steel Pipe is composed primarily of chromium, nickel, molybdenum, and nitrogen, creating a balanced austenitic-ferritic microstructure. This composition provides high tensile and yield strength, excellent toughness, and superior resistance to pitting, crevice corrosion, and stress-corrosion cracking. The pipe maintains dimensional stability and mechanical integrity under thermal cycling, high-pressure, and mechanically demanding conditions. Combining corrosion resistance, durability, and high strength, Duplex Steel Pipe ensures long-lasting and reliable performance in chemical, petrochemical, marine, offshore, and power generation applications where conventional stainless steels may fail.
| 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 Nasir Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Pipe in Manama, Bahrain, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Bahrain, 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.
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Duplex Steel Pipe is widely used in industries requiring corrosion-resistant, high-strength, and durable piping solutions. It is essential in chemical and petrochemical plants for reactors, heat exchangers, storage tanks, and process piping exposed to acids, chlorides, and oxidizing chemicals. Oil and gas industries utilize Duplex Steel Pipe in offshore platforms, subsea pipelines, and high-pressure transportation systems. Power generation facilities employ it in boilers, turbines, and cooling water systems. Marine and desalination plants rely on Duplex Steel Pipe for seawater-resistant piping components. The pipe ensures structural integrity, leak-tight performance, and long-term durability in harsh, high-pressure, and corrosive industrial environments.
