Smith Fittings is a top-notch manufacturer and supplier located in Canberra, Australia, specializing in high-quality **Duplex Steel Buttweld Fittings**. These fittings are crafted to deliver outstanding strength, corrosion resistance, and durability, making them perfect for tough industrial and marine environments. Smith Fittings offers a diverse selection of duplex steel buttweld fittings, including elbows, tees, reducers, and caps, all produced to meet international quality standards. You’ll find Duplex Steel Buttweld Fittings commonly used in chemical processing, petrochemical, oil and gas, and offshore industries, where their ability to resist pitting, stress corrosion, and chloride-induced corrosion is vital for dependable performance.
| Size | : | 1/2″ to 36″ |
| Standard | : | ASTM / ASME A815 / SA815. |
| Dimensions | : | ANSI/ASME B16.9, B16.28, MSS-SP-43. |
| Grade | : | UNS No. S31803, S32205, S32550, S32750, S32760. |
| Type | : | Seamless & Welded |
| Schedule | : | Sch 5 TO Sch XXS. |
Typically, Duplex Steel Buttweld Fittings are made from a well-balanced blend of chromium (around 22%), nickel (5–6%), molybdenum (3%), and nitrogen (0.14–0.20%), resulting in a unique duplex microstructure of ferrite and austenite. This special composition offers remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking, all while maintaining impressive mechanical strength. They usually boast tensile strengths ranging from 620 to 850 MPa and yield strengths of 450 MPa, along with excellent toughness, fatigue resistance, and stability under high-pressure and corrosive conditions.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 / S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
Smith Fittings is a leading supplier of Duplex Steel Buttweld Fittings in Canberra, Australia. We offer an extensive range of Duplex Steel Buttweld Fittings, renowned for their excellent corrosion resistance and high strength, which makes them perfect for demanding industrial applications like chemical processing, marine environments, and high-temperature systems. With a commitment to quality and reliable delivery, we ensure our clients receive top-tier products tailored to meet the specific needs of various industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex 2205 | 1.4462 | S31803 / S32205 |
Choose Duplex Steel Buttweld Fittings from Smith Fittings for superior quality, exceptional corrosion resistance, and reliable performance in extreme conditions. We offer customized solutions backed by expert support and industry experience.
Duplex Steel Buttweld Fittings offer numerous advantages, including exceptional strength, high corrosion resistance, and excellent resistance to pitting and stress corrosion cracking. Their unique composition, combining both austenitic and ferritic structures, provides superior mechanical properties, such as high tensile and yield strength, making them suitable for high-pressure and high-temperature applications. These fittings are highly durable in aggressive environments, including those exposed to seawater, chemicals, and other corrosive substances. Duplex Steel Buttweld Fittings are also cost-effective, offering enhanced performance with reduced material costs compared to other stainless steels. They are ideal for critical industrial applications.
Yes, custom sizes for Duplex Steel Buttweld Fittings are available at Smith Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@smithfittings.com
You’ll find Duplex Steel Buttweld Fittings widely utilized in pipelines, pressure vessels, heat exchangers, and process equipment across the chemical, petrochemical, and offshore sectors. They’re particularly well-suited for seawater handling, desalination plants, and oil and gas facilities that face exposure to chlorides and harsh chemicals. With their high strength, corrosion resistance, and reliability, these fittings ensure long-lasting, leak-proof connections, making them the go-to choice for critical industrial applications where durability and performance are key.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.
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