- sales@mariapipes.com
- Kuala lumpur, Malaysia
Home > Duplex Steel > Duplex Steel Coil Tubing
Maria Pipes and Tubes, located in Kuala Lumpur, Malaysia, has built a solid reputation as a reliable manufacturer and supplier of top-notch piping and tubing products for a variety of industrial uses. The company is well-regarded for providing solutions that adhere to international standards, catering to industries like oil and gas, petrochemicals, marine engineering, power generation, and chemical processing. With state-of-the-art manufacturing facilities, a team of skilled professionals, and rigorous quality control measures, Maria Pipes and Tubes guarantees products that are durable, precise, and designed for a long service life. Their commitment to customer satisfaction, timely deliveries, and high performance has earned them a strong standing in both local and global markets.
Duplex steel coil tubing is crafted from duplex stainless steel, which merges the robust qualities of ferritic stainless steel with the corrosion resistance of austenitic stainless steel. Offered in continuous coil form, it reduces the need for multiple joints, which in turn minimizes potential leak points and enhances system reliability. This tubing is known for its outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in chloride-rich and aggressive environments. It also boasts high tensile and yield strength, good toughness, and excellent fatigue resistance, making it perfect for challenging operational conditions.
| 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 Maria 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.
Maria Pipes and Tubes, one of the largest suppliers of Duplex Steel Coil Tubing in the Kuala lumpurs, Malaysia. 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 Maria 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@mariapipes.com.
You’ll find this tubing widely used in offshore oil and gas wells, chemical injection systems, and subsea control lines, where long, continuous lengths are crucial for operational efficiency. In the marine industry, it plays a key role in seawater cooling and hydraulic systems. Additionally, it’s utilized in chemical processing facilities, desalination plants, and power generation units for high-pressure and corrosive service applications. The blend of mechanical strength, corrosion resistance, and lower maintenance needs makes duplex steel coil tubing a top choice for critical industrial and engineering projects.
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