Harry Fittings is a top-notch manufacturer and supplier located in Houston, USA, with a focus on high-performance Duplex Steel UNS S31803 Buttweld Fittings. Known for their durability and resistance to corrosion, Harry Fittings caters to a diverse array of industrial sectors both in the United States and around the world. Their Duplex Steel S31803 fittings are designed for strength, reliability, and longevity, making them a go-to choice for critical operations. With a strong commitment to quality and customer satisfaction, Harry Fittings guarantees that each product meets international standards and undergoes rigorous testing for exceptional performance in extreme conditions.
| Standards | ASTM, ASME |
| Designation | A815, SA815 |
| Dimension Standard | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 |
| Grade | Duplex Steel S31803 Buttweld Pipe Fittings. |
| Type | Seamless, Welded |
| Thickness | Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS |
| Size | 1/2″ to 24″ |
| Two Joint / Two Halve S31803 Butt weld Fittings Size | 6″ to 48″ |
| Types of Butt weld Fittings | Equal Tee, Nipple, Long Radius Elbow, Reducing Tee, Elbows, Swage Nipple, Short Radius Elbow, Reducer, Barrel Nipple, 90 Deg Elbow, Concentric Reducer, Reducing Nipple, 45 Deg Elbows, Eccentric Reducer, Bend, 180 Deg Elbow, End Cap, 1D Elbow, 3D Elbow, Stubend, 5D Elbow, Cap, Piggable Bend, Long Stubend, Tee, Short Stubend, Long Radius Bend. |
| Also as per National & International Standard &Specification | |
Duplex Steel UNS S31803 Buttweld Fittings consist of about 22% chromium, 5-6% nickel, and 3% molybdenum, along with a mix of iron and trace elements. This unique dual-phase microstructure offers impressive strength and resistance to stress corrosion cracking. The fittings boast a high tensile strength of around 620 MPa, a yield strength of 450 MPa, and an elongation of 25%. They also retain good impact toughness, even in low temperatures, and show remarkable resistance to pitting, crevice corrosion, and chloride-induced corrosion fatigue in harsh environments.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| Duplex Steel S31803 | 0.030 max | 2 max | 1 max | 0.030 max | 0.020 max | 22 – 23 | 3 – 3.50 | 4.50 – 6.50 | 0.14 – 0.20 | Bal |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 116000 , MPa – 800 | Psi – 80000 , MPa – 550 | 15 % |
Harry Fittings is a leading supplier of Duplex Steel UNS S31803 Buttweld Fittings in Houston, USA. We offer an extensive range of Duplex Steel UNS S31803 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 Steel S31803 | 1.4462 | S31803 |
Choose Duplex Steel UNS S31803 Buttweld Fittings from Harry 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 UNS S31803 Buttweld Fittings offer several advantages, including excellent resistance to corrosion, pitting, and stress corrosion cracking, making them ideal for harsh environments. Their unique dual-phase microstructure provides a high strength-to-weight ratio, offering greater tensile and yield strength than standard austenitic stainless steels. These fittings also exhibit superior weldability, making them easier to work with in fabrication processes. UNS S31803 fittings are highly durable in industries such as chemical processing, oil and gas, and marine applications, ensuring long-lasting performance even in high-pressure, high-temperature environments.
Yes, custom sizes for Duplex Steel UNS S31803 Buttweld Fittings are available at Harry Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@harryfittings.us
These Duplex Steel UNS S31803 Buttweld Fittings are extensively utilized in industries that demand high strength and corrosion resistance, such as oil and gas, petrochemical, marine, and chemical processing. They are perfect for offshore platforms, pressure vessels, heat exchangers, and pipelines that face tough conditions. Their outstanding mechanical properties and excellent weldability make them ideal for structural applications in bridges and architectural frameworks. Plus, their resistance to chloride stress corrosion makes them a fantastic option for desalination plants, pulp and paper industries, and wastewater treatment facilities.
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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