- sales@ojaspipesandtubes.co.in
- Kolkata, Kolkata
Home > Duplex Steel > Duplex Steel Boiler Tubing
Ojas Pipes and Tubes stands out as a top-notch manufacturer and supplier of high-performance Duplex Steel Boiler Tubing, proudly based in Kolkata, India. Renowned for their engineering excellence and dependable service, Ojas crafts boiler tubes from premium duplex stainless steel grades like UNS S32205 and S31803. These tubes are expertly designed to thrive under high pressure, temperature, and corrosive environments, making them perfect for power plants, refineries, and industrial boilers. Ojas is committed to meeting international standards, providing custom sizes, exceptional quality, and prompt delivery. Industries both in India and overseas rely on Ojas Pipes and Tubes for durable, efficient, and cost-effective boiler tubing solutions.
Duplex Steel Boiler Tubing is generally made up of about 22% Chromium, 5–6% Nickel, 3% Molybdenum, and a touch of Nitrogen, resulting in a dual-phase (austenitic-ferritic) microstructure. This well-balanced composition delivers outstanding strength, corrosion resistance, and thermal stability. The tubing boasts a minimum yield strength of 450 MPa, a tensile strength of around 620 MPa, and an elongation of roughly 25%. Duplex boiler tubes maintain impressive mechanical integrity even under fluctuating temperatures and pressures. They effectively resist pitting, crevice corrosion, and stress corrosion cracking—making them perfect for steam generation, superheaters, and heat recovery systems in harsh or high-heat environments.
| Size: | 6.00 mm OD to 50.8 mm OD |
|---|---|
| Thickness: | 0.89 mm THK to 5.00 mm THK |
| Specifications: | ASTM A-213, A-268, A-269, A-789, Equivalent to ASME, EN, JIS Etc. |
| Applications: | Oil & Gas, Petrochemical & Refinery, Fertilizer, Power Plant & All major industries. |
| N | C | P | Si | Mn | Mo | Fe | Cr | S | Ni |
| 0.03 | 1.0 | 0.02 | 2.0 | 3.0 – 3.5 | 22.0 – 23.0 | 0.03 | 4.5 – 6.5 | 0.14 – 0.2 | Bal |
| Tubing Density | Tubing Melting Point | Yield Strength (0.2%Offset) | 2205 Duplex SS Pipe Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Duplex Steel Boiler Tubing from Ojas Pipes and Tubes ensures superior quality and durability, offering outstanding corrosion resistance and high strength. Our dedication to delivering exceptional service and reliable products guarantees customer satisfaction across a wide range of industrial applications. With our expertise in Duplex steel solutions, you can trust us to provide a top-tier, customized piping solution that meets your specific requirements.
Ojas Pipes and Tubes, one of the largest suppliers of Duplex Steel Boiler Tubing in the Kolkatas, India. Offers a wide range of high-quality pipes and tubes designed for various industrial applications. Their extensive inventory and dedication to exceptional service make them a trusted choice for Duplex steel products in the region, delivering reliable solutions to meet diverse project requirements.
Yes, we provide custom sizes for Duplex Steel Boiler Tubing to meet your specific requirements. At Ojas Pipes and Tubes, our team is dedicated to delivering tailored solutions for all your piping and tubing needs. For more information, please contact us at sales@ojaspipesandtubes.co.in.
Duplex Steel Boiler Tubing finds its place in high-performance systems that demand durability, pressure resistance, and corrosion protection. It’s an excellent choice for power plants (including thermal, nuclear, and renewable), petrochemical refineries, and chemical plants where boilers operate under extreme conditions. These tubes are frequently utilized in steam generation units, waste heat recovery boilers, heat exchangers, and superheaters. Additionally, Duplex boiler tubes are well-suited for marine boilers, as well as in the paper and pulp industry.
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