- sales@ojaspipesandtubes.co.in
- Kolkata, Kolkata
Home > Duplex Steel > Duplex Steel Tubing
Ojas Pipes and Tubes is a top-class producer and exporter of top-grade Duplex Steel Tubing in Kolkata, India. Renowned for precision engineering and commitment to excellence, the organization provides dependable tubing solutions for various industrial uses. Boasting a strong emphasis on innovation, strength, and corrosion resistance, Ojas Pipes and Tubes serves the rigorous requirements of the oil & gas, chemical, and marine industry. Supported by advanced manufacturing units and qualified personnel, the company maintains rigorous compliance with international standards of quality, providing Duplex Steel Tubing that satisfies performance and sustainability demands.
Duplex Steel Tubing generally contains 22–25% Chromium, 4–7% Nickel, 3–5% Molybdenum, and an equiaxed combination of Ferrite and Austenite phases. The two-phase form provides improved corrosion resistance and mechanical properties. Its major mechanical characteristics are a tensile strength of approximately 600–800 MPa and yield strength of 450–550 MPa, having superior elongation (25–30%) and impact resistance. The equilibrated microstructure provides the ability to withstand superior stress corrosion cracking, pitting, and crevice corrosion resistance, and thus Duplex Steel Tubing is best suited for high-stress conditions and chemical aggressiveness.
| Size | : | 1/2″NB TO 12 “NB IN |
| Standards | : | ASTM A 790 ASME SA 790 |
| Grades | : | (Duplex UNS S31803), UNS 2UNS S32205 (Duplex UNS S32205) |
| Length | : | Single Random, Double Random & Cut Length |
| Type | : | Seamless / ERW / Welded / Fabricated |
| Form | : | Round, Hydraulic Etc |
| Schedule | : | SCH20, SCH30, SCH40, STD, SCH80 |
| Chemical Composition % | ||||
| Cr | Ni | Mo | C | N |
| 22.0-23.0 | 4.50-6.50 | 3.00-3.50 | .030 Max | 0.14-0.20 |
| Mn | Si | P | S | Fe |
| 2.00 Max | 1.00 Max | .030 Max | .020 Max | Balance |
| Duplex Stainless Steel | Tubing |
| Density | 7.805 |
| Melting Range,℃ | 1450 ℃ |
| Elongation % | 25 min. |
| Tensile Strength (Mpa) | 655 |
| Yield Strngth (Mpa) | 450 |
| Hardness (Brinell) | 293 max |
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 Tubes 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 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 Tubes 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 Tubing is extensively utilized in industries owing to its superior strength and corrosion resistance. It is used in subsea pipelines and offshore platforms in the oil and gas industry, in heat exchangers, pressure vessels, and processing equipment in chemical and petrochemical plants. Its seawater corrosion resistance gives it an advantage to be used in marine applications such as seawater desalination plants and boat shafts. It is utilized in boilers and heat recovery systems by power generation plants and by the pulp and paper market for digesters and bleach washers. Its high strength also qualifies it for structure uses in construction and infrastructure.
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