- sales@blundellpipes.co.nz
- Hamilton, New Zealand
Home > Duplex Steel > Duplex Steel Welded Tubing
From the heart of Hamilton, New Zealand, Blundell Pipes and Tubes is a name trusted by industry for delivering uncompromising quality. We take particular pride in our Duplex Steel Welded Tubing, a product engineered for situations where failure is not an option. We understand that our clients rely on materials that can withstand extreme pressures and corrosive environments, and our dedicated manufacturing process ensures each length of tubing meets the highest standards of performance and reliability, supporting critical operations both locally and internationally.
The strength of Duplex Steel lies in its unique composition, a balanced mixture of chromium, nickel, molybdenum, and nitrogen. This blend gives the material a two-phase microstructure that combines the best attributes of austenitic and ferritic steels. The result is a product with outstanding mechanical properties, including remarkably high tensile strength and excellent resistance to stress corrosion cracking. It’s significantly stronger than standard stainless steels, which often allows for the use of thinner walls without sacrificing any of the required pressure ratings or structural integrity.
Pipe Range : 1 / 2″ NB – 8″ NB
Outer Diameter : 6.0-630mm
Wall Thickness : 0.3mm – 50 mm
Schedules : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Length : Single Random, Double Random & Required Length
Specifications : ASTM A789 / ASME SA789
Types : Welded / ERW / Fabricated
| Duplex | Welded |
|---|---|
| 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 |
| Duplex | Welded |
| 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 Welded Tubes 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 Welded 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 Welded 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.
Duplex Steel Welded Tubing is extensively utilized in industries that require both strength and corrosion resistance in harsh conditions. It’s commonly found in oil and gas pipelines, chemical processing plants, desalination facilities, heat exchangers, and marine environments where exposure to chlorides is prevalent. Additionally, sectors like power generation, paper and pulp, and structural applications depend on these tubes for their durability and long service life. Their remarkable weldability and resistance to localized corrosion ensure reliable performance in both offshore and onshore projects, making them a top choice for critical engineering and industrial applications.
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