- sales@ojaspipesandtubes.co.in
- Kolkata, Kolkata
Home > Duplex Steel > Duplex Steel Mechanical Tubing
Ojas Pipes and Tubes stands out as a top-notch manufacturer and supplier of high-quality Duplex Steel Mechanical Tubing, proudly based in Kolkata, India. These tubes are crafted for exceptional strength and remarkable resistance to corrosion, utilizing premium duplex stainless steel grades like UNS S32205 and S31803. Thanks to their balanced austenitic-ferritic microstructure, Duplex Steel Mechanical Tubes excel in demanding applications that require outstanding mechanical performance, even under pressure, stress, and harsh environments. Ojas is committed to precision manufacturing, rigorous quality control, and compliance with international standards. These tubes find extensive use in structural components, offshore equipment, chemical plants, and power generation facilities both in India and around the world.
Duplex Steel Mechanical Tubing is made up of about 22% Chromium, 5–6% Nickel, around 3% Molybdenum, and a touch of Nitrogen, creating a dual-phase structure that boosts performance. These tubes deliver impressive tensile strength (around 620 MPa), yield strength (approximately 450 MPa), and good elongation (about 25%). Their outstanding fatigue strength and resistance to stress corrosion cracking make them a superior choice compared to traditional stainless steels in tough environments. The mechanical tubing maintains its shape and strength even under load, shock, and vibration, making it perfect for critical industrial and structural applications that require both durability and resistance to harsh conditions.
| 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 | : | Mechanical |
| 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 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 Mechanical 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 Mechanical 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 Mechanical 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 Mechanical Tubing is extensively utilized in offshore platforms, marine structures, desalination plants, and chemical processing systems, thanks to its strength and corrosion resistance. It’s particularly suited for load-bearing components, heat exchangers, frames, shafts, and high-pressure piping systems in environments that face chloride stress and heavy mechanical loads. In power plants, it serves as a key material for structural and pressure-bearing parts, while in construction, it provides support for robust, long-lasting frameworks. Its resistance to aggressive agents ensures reliability in various demanding applications.
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