- sales@blundellpipes.co.nz
- Hamilton, New Zealand
Home > Duplex Steel > Duplex Steel Pipe
From the heart of Hamilton, New Zealand, Blundell Pipes and Tubes has built a reputation for reliability and expertise in the industrial supply sector. We take pride in manufacturing and supplying high-performance Duplex Steel Welded Pipes, engineered to meet the toughest challenges. Our commitment lies in providing durable, corrosion-resistant solutions that local industries can depend on for their critical infrastructure and demanding projects, ensuring strength and longevity are delivered right here from our own backyard.
Duplex steel is renowned for its unique two-phase microstructure, blending austenitic and ferritic grains. This gives our welded pipes an exceptional combination of high strength and outstanding resistance to corrosion and stress cracking. They are significantly stronger than standard stainless steels, offering a robust yet cost-effective alternative. This superior mechanical performance ensures they hold up under high pressures and in aggressive environments where other materials might fail.
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 |
| 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 Welded Pipes from Blundell Pipes and Tubes ensures high quality and durability, as these pipes offer excellent corrosion resistance and strength. Our commitment to exceptional service and reliable delivery guarantees customer satisfaction across various industrial applications. Our expertise in stainless steel products ensures you receive a top-tier solution tailored to your needs.
Blundell Pipes and Tubes, one of the largest suppliers of Duplex Steel Welded Pipes in Hamilton, New Zealand, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.
Yes, we offer custom sizes for Duplex Steel Welded Pipes to meet your specific requirements. Our team at Blundell Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@blundellpipes.co.nz.
Duplex Steel Welded Pipes find extensive use in industries where strength and corrosion resistance are paramount. In chemical and petrochemical plants, they safely transport acids, alkalis, and other aggressive substances. In the oil and gas industry, they are utilized in pipelines, heat exchangers, and process equipment that come into contact with seawater and corrosive materials. Power generation facilities employ them in boilers, condensers, and high-temperature systems, while marine industries depend on them for offshore structures and seawater handling applications. Their durability, versatility, and reliability in extreme conditions make them a top choice for various industrial needs.
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