- sales@davidpipes.com
- Canberra, Australia
Home > Duplex Steel > Duplex Steel EFW Pipes
David Pipes and Tubes, located in Canberra, Australia, stands out as a top manufacturer and supplier of Duplex Steel EFW Pipes. They specialize in delivering high-quality stainless steel piping solutions that are designed for exceptional corrosion resistance, mechanical strength, and reliability. Using cutting-edge Electric Fusion Welding (EFW) technology, these pipes guarantee uniform wall thickness, smooth internal surfaces, and precise dimensional accuracy. The Duplex Steel EFW Pipes from David Pipes and Tubes are perfect for industries like chemical processing, petrochemical, offshore oil and gas, desalination, and power generation, where long-lasting durability, resistance to chloride stress corrosion, and structural integrity are essential.
These pipes are primarily made up of 22% chromium, 5–6% nickel, 3% molybdenum, and 0.14–0.20% nitrogen, creating a well-balanced duplex microstructure. This unique composition offers outstanding resistance to pitting, crevice corrosion, and stress-corrosion cracking, especially in harsh and chloride-rich environments. With a tensile strength ranging from 620 to 850 MPa and a yield strength of 450 to 550 MPa, they also boast good ductility. The EFW manufacturing process ensures robust, leak-proof seams and consistent mechanical properties throughout the entire length of the pipe.
| ASTM Specification | ASTM A790 ASME SA790 |
|---|---|
| Applicable Standard | ASTM, ASME, JIS, AISI, AMS, EN, SAE, DIN, NF, TOCT, DS, DTD, GB |
| Size | 4 to 219mm W. T.: 0.5 to 20mm |
| Welded Pipe Size | 5.0 – 1219.2 mm |
| EFW Pipe size | 5.0 – 1219.2 mm |
| Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF, NO.1, NO.4, 2B, BA, HL, 8K, Mirror finish, etc |
| Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| Schedule | SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Length | Single Random, Double Random, Standard & Cut length Pipe |
| Form | Duplex 2205 Pipe are available in form of Round, Square, Hollow, Rectangular, Hydraulic, Coiled, Straight Pipes, “U” Shape, Pan Cake Coils etc. |
| Type | Seamless / ERW/ EFW / Welded / Fabricated / CDW / DOM / CEW Duplex 2205 Pipe |
| Pipe End | Plain End, Beveled End, Treaded Pipe, Screwed ends |
| Application | Dairy Pipe, Oil Pipe, Gas Pipe, Fluid Pipe, Boiler Pipe for Chemical Industry |
| 13.72 | 1.65 | 1/4 | 10S | 0.50 |
| 13.72 | 2.24 | 1/4 | 40S | 0.64 |
| 13.72 | 3.02 | 1/4 | 80S | 0.81 |
| 17.15 | 1.65 | 3/8 | 10S | 0.64 |
| 17.15 | 2.31 | 3/8 | 40S | 0.86 |
| 17.15 | 3.20 | 3/8 | 80S | 1.12 |
| 21.34 | 2.11 | 1/2 | 10S | 1.02 |
| 21.34 | 2.77 | 1/2 | 40S | 1.29 |
| 21.34 | 3.73 | 1/2 | 80S | 1.65 |
| 26.67 | 2.11 | 3/4 | 10S | 1.30 |
| 26.67 | 2.87 | 3/4 | 40S | 1.71 |
| 26.67 | 3.91 | 3/4 | 80S | 2.23 |
| 33.40 | 2.77 | 1 | 10S | 2.13 |
| 33.40 | 3.38 | 1 | 40S | 2.54 |
| 33.40 | 4.55 | 1 | 80S | 3.29 |
| 33.40 | 6.352) | 1 | 160 | 4.30 |
| 42.16 | 2.77 | 1¼ | 10S | 2.73 |
| 42.16 | 3.56 | 1¼ | 40S | 3.44 |
| 42.16 | 4.85 | 1¼ | 80S | 4.53 |
| 42.16 | 6.352) | 1¼ | 160 | 5.69 |
| 48.26 | 2.77 | 1½ | 10S | 3.16 |
| 48.26 | 3.68 | 1½ | 40S | 4.11 |
| 48.26 | 5.08 | 1½ | 80S | 5.49 |
| 60.33 | 2.77 | 2 | 10S | 3.99 |
| 60.33 | 3.91 | 2 | 40S | 5.52 |
| 60.33 | 5.54 | 2 | 80S | 7.60 |
| 60.33 | 8.742) | 2 | 160 | 11.29 |
| 73.03 | 3.05 | 2½ | 10S | 5.35 |
| 73.03 | 5.16 | 2½ | 40S | 8.77 |
| 73.03 | 7.01 | 2½ | 80S | 11.59 |
| 88.90 | 3.05 | 3 | 10S | 6.56 |
| 88.90 | 5.49 | 3 | 40S | 11.47 |
| 88.90 | 7.62 | 3 | 80S | 15.51 |
| 88.90 | 11.132) | 3 | 160 | 21.67 |
| 101.60 | 3.05 | 3½ | 10S | 7.53 |
| 101.60 | 5.74 | 3½ | 40S | 13.78 |
| 101.60 | 8.08 | 3½ | 80S | 18.92 |
| 114.30 | 3.05 | 4 | 10S | 8.50 |
| 114.30 | 6.02 | 4 | 40S | 16.32 |
| 114.30 | 8.56 | 4 | 80S | 22.67 |
| 114.30 | 13.492) | 4 | 160 | 34.05 |
| 141.30 | 6.55 | 5 | 40S | 22.10 |
| 141.30 | 9.53 | 5 | 80S | 31.44 |
| 141.30 | 15.882) | 5 | 160 | 49.87 |
| 168.28 | 3.4 | 6 | 10S | 14.04 |
| 168.28 | 7.11 | 6 | 40S | 28.69 |
| 168.28 | 10.97 | 6 | 80S | 43.21 |
| 168.28 | 14.27 | 6 | 120 | 54.75 |
| 168.28 | 18.262) | 6 | 160 | 68.59 |
| 219.08 | 8.18 | 8 | 40S | 43.20 |
| 219.08 | 12.7 | 8 | 80S | 65.63 |
| 219.08 | 18.23 | 8 | 120 | 91.30 |
| 219.08 | 23.012) | 8 | 160 | 112.97 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| Duplex Steel | C | N | P | Si | Mn | Mo | Fe | Cr | S | Ni |
| 1.0 | 0.03 | 0.02 | 2.0 | 3.0 – 3.5 | 22.0 – 23.0 | 0.03 | 4.5 – 6.5 | 0.14 – 0.2 | Bal |
| Duplex Steel | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
Choosing Duplex Steel EFW Pipes from David 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.
David Pipes and Tubes, one of the largest suppliers of Duplex Steel EFW Pipes in Canberra, Australia, 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 EFW Pipes to meet your specific requirements. Our team at David Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@davidpipes.com.
Duplex Steel EFW Pipes find extensive applications in process piping, heat exchangers, chemical reactors, offshore installations, and desalination plants. Their blend of corrosion resistance, mechanical strength, and long-term reliability makes them the go-to choice for industries that need durable, high-performance, and maintenance-free piping solutions in challenging and corrosive settings.
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