- sales@davidpipes.com
- Canberra, Australia
Home > Duplex Steel > Duplex Steel Welded Tubing
David Pipes and Tubes, located in Canberra, Australia, stands out as a top manufacturer and supplier of Duplex Steel Welded Tubing. They specialize in crafting high-quality stainless steel tubes that are built to resist corrosion, offer mechanical strength, and ensure durability. Thanks to cutting-edge welding technology, these tubes feature smooth internal surfaces, consistent wall thickness, and precise dimensions. The Duplex Steel Welded Tubing from David Pipes and Tubes is perfect for industries like chemical processing, petrochemical, offshore oil and gas, desalination, and marine, where long-lasting reliability and resistance to chloride stress corrosion are essential.
This tubing is made up of 22% chromium, 5–6% nickel, 3% molybdenum, and 0.14–0.20% nitrogen, creating a well-balanced duplex microstructure. This unique blend provides outstanding resistance to pitting, crevice corrosion, and stress-corrosion cracking, especially in harsh, chloride-rich environments. With a tensile strength ranging from 620 to 850 MPa and a yield strength of 450 to 550 MPa, it maintains good ductility, ensuring mechanical integrity even under high pressure and temperature. The welded design guarantees strong, leak-proof joints and reliable performance throughout the entire length of the tube.
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 David 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.
David Pipes and Tubes, one of the largest suppliers of Duplex Steel Welded Tubing in the Canberras, Australia. 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 David 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@davidpipes.com.
Duplex Steel Welded Tubing is commonly found in heat exchangers, process piping, chemical reactors, offshore installations, and desalination plants. Its impressive combination of corrosion resistance, mechanical strength, and long-lasting durability makes it the go-to choice for industries that need robust, dependable, and maintenance-free tubing solutions in challenging and corrosive settings.
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