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Mumbai-based Jyoti Steels is a reliable producer and supplier of high-performance Duplex Steel Pipes, serving various industries both globally and domestically. With their exceptional strength, high corrosion resistance, and long lifespan, these pipes are engineered to withstand the stringent requirements of industries such as oil & gas, petrochemical, and marine industries. Jyoti Steels supplies precision-engineered Duplex Steel Pipes to international quality specifications, providing guaranteed performance in harsh environments and under high-pressure conditions.
Duplex Steel Pipes usually include an even microstructure of around 22% Chromium, 5–6.5% Nickel, 3–3.5% Molybdenum, and 0.14–0.20% Nitrogen, with the rest being Iron and trace elements such as Manganese and Silicon. These pipes show a tensile strength of 620–880 MPa, a yield strength of 450 MPa, and elongation of 25%. The pipes are very resistant to corrosion, especially against pitting and stress corrosion cracking, and a density of approximately 7.8 g/cm³. With a melting point of approximately 1350°C and average thermal conductivity, Duplex Steel Pipes are suitable for use under high-pressure, high-temperature, and corrosive environments.
| 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 Jyoti Steels, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Pipe in Mumbai, India, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the India, 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 are commonly applied in those industries where mechanical strength as well as corrosion resistance are of prime importance. These are oil and gas exploration, subsea and offshore platforms, chemical processing, desalination facilities, and heat exchangers. While being used in marine applications, they are highly resistant to corrosion by seawater and biofouling. Power generation plants and structural elements in building construction also make use of Duplex Steel Pipes because of their fatigue and wear-resistance. Their two-phase structure provides improved stress management, and hence, they are a popular choice for piping systems under oscillating pressures and corrosive environments.
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