- sales@blundellpipes.co.nz
- Hamilton, New Zealand
Home > Duplex Steel > Duplex Steel Coil Tubing
From the heart of Hamilton, New Zealand, Blundell Pipes and Tubes has built a strong reputation for delivering robust and reliable piping solutions. Our focus on quality and local expertise shines through in our Duplex Steel Coil Tubing, a product specifically engineered for the most demanding situations. We understand that our clients need materials that can perform under pressure, which is why we are proud to supply this superior grade of tubing, trusted by industries where failure is not an option.
Duplex steel gets its strength from a balanced composition of chromium, nickel, and molybdenum, creating a mixed microstructure of austenite and ferrite. This unique blend gives the material an excellent combination of high tensile strength and outstanding resistance to corrosion, particularly against stress corrosion cracking. It stands up remarkably well to a wide range of corrosive chemicals, making it far more durable than standard stainless steels in harsh environments.
| 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 Blundell 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.
Blundell Pipes and Tubes, one of the largest suppliers of Duplex Steel Coil Tubing in the Hamiltons, New Zealand. 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 Blundell 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@blundellpipes.co.nz.
This type of tubing is extensively utilized in industries where corrosion resistance, mechanical strength, and flexibility are essential. In the oil and gas sector, it finds applications in flexible process lines, offshore platforms, and instrumentation systems. Chemical and petrochemical plants rely on it for transporting aggressive fluids and acids in space-efficient layouts. Power generation facilities use it in boilers, heat exchangers, and condensers. Moreover, it plays a crucial role in marine engineering, desalination plants, and various industrial process systems, providing efficient, space-saving piping solutions. Its combination of durability and corrosion resistance makes it a top choice for these demanding environments.
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