- sales@bosegapipes.co.za
- Cape Town, South Africa
Home > Duplex Steel > Duplex Steel Coil Tubing
Bosega Pipes and Tubes, located in Cape Town, South Africa, has earned a solid reputation as a reliable manufacturer and supplier of Duplex Steel Coil Tubing. This tubing is celebrated for its exceptional strength, durability, and resistance to corrosion. The company specializes in providing top-notch tubing solutions tailored to meet the rigorous demands of critical sectors like oil and gas, petrochemical, and marine applications. With state-of-the-art manufacturing facilities and a commitment to strict quality standards, Bosega Pipes and Tubes guarantees that each coil tubing boasts excellent weldability, toughness, and resistance to stress corrosion cracking, making it perfect for use in tough and corrosive environments.
Duplex Steel Coil Tubing is made up of chromium (22%), nickel (5–6%), molybdenum (3%), and nitrogen (0.2–0.3%), which together create a fantastic mechanical and chemical balance. Its unique dual-phase microstructure combines the best of austenitic and ferritic steel, resulting in remarkable strength and resistance to localized corrosion. The tubing showcases high tensile strength (around 620 MPa), impressive yield strength, and good elongation. It remains mechanically stable even in high-pressure and high-temperature situations, making it ideal for demanding industrial operations.
| Specifications | ASTM A790 / ASME SA790, ASTM A789 / ASME SA A789 |
| Standard | ASTM, ASME and API |
| Coil Tubes Sizes | 1 / 2″ NB – 8″ NB |
| Duplex Tubes Sizes | 6″ NB – 24″ NB |
| Outer Diameter | 6.0-630mm |
| Thickness | 0.3mm – 50 mm |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Types | Heat Exchanger/ Instrumentation/ Precision Tubing/ Long Coiled Tubing/ Multi-core Coiled |
| Duplex | Coiled |
|---|---|
| Ni | 4.50 – 6.50 |
| Fe | 63.72 min |
| Cr | 22.0 – 23.0 |
| C | 0.030 max |
| Si | 1.00 max |
| Mn | 2.00 max |
| P | 0.030 max |
| S | 0.020 max |
| N | 0.14 – 0.20 |
| Grade | S31803 |
| Density (g/cm 3) | 7.805 |
| Density (lb/in 3) | 0.285 |
| Melting Point (°C) | 1420 – 1465 |
| Melting Point (°F) | 2588 – 2669 |
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 Coil Tubing from Bosega 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.
Bosega Pipes and Tubes, one of the largest suppliers of Duplex Steel Coil Tubing in the Cape Towns, South Africa. 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 Coil Tubing to meet your specific requirements. At Bosega 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@bosegapipes.co.za.
This type of tubing is commonly used in both offshore and onshore oil exploration, heat exchangers, and chemical processing systems, thanks to its ability to resist chloride-induced stress corrosion cracking. It’s also found in desalination plants, refineries, hydraulic lines, and instrumentation systems where corrosion resistance and mechanical strength are crucial. In the marine and power generation sectors, it’s appreciated for its long service life and minimal maintenance needs. Its blend of strength, flexibility, and resistance to harsh conditions makes it a dependable choice for challenging industrial applications.
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