Braxton Fittings, located in Midland, UK, is a renowned manufacturer and supplier of high-quality industrial fittings. Known for our precision and reliability, we offer a wide range of products that meet the needs of various industries. Our Duplex Steel UNS S31803 Forged Fittings are designed for exceptional strength, excellent corrosion resistance, and superior performance in challenging environments. These fittings are ideal for high-pressure and high-temperature applications in industries such as oil and gas, chemical processing, and marine, ensuring long-lasting durability and performance.
| Size | : | 1/2″NB TO 4″NB IN |
| Standard | : | ASTM A182 / ASME SA182 |
| Dimensions | : | ANSI/ASME B16.11 & BS3799, etc. |
| Grade | : | UNS S31803, S32205, S2205, S32550, S32750, S32760. |
| Class | : | 2000LBS, 3000LBS, 6000LBS, 9000LBS, etc. |
Duplex Steel UNS S31803 Forged Fittings are composed of around 22% chromium, 5-6% nickel, 3% molybdenum, and small amounts of nitrogen, manganese, and silicon. This unique blend enhances their strength, corrosion resistance, and resistance to stress corrosion cracking, especially in chloride environments. Mechanically, these fittings offer a tensile strength of 620-850 MPa, yield strength of 450 MPa, and approximately 25% elongation. They also exhibit excellent toughness, high fatigue resistance, and good weldability, making them ideal for high-pressure, high-temperature applications in industries like oil and gas, marine, and chemical processing.
| UNS S31803 | Ni | Cr | Mo | Mn | Si | C | N | S | P | Fe |
| min | 4.5 | 22.0 | 3.0 | – | – | – | 0.14 | – | – | – |
| max | 6.5 | 23.0 | 3.5 | 2.0 | 1.0 | 0.03 | 0.2 | 0.02 | 0.03 | Balance |
| Grade | S31803 |
| Density (g/cm 3) | 7.805 |
| Density (lb/in 3) | 0.285 |
| Melting Point (°C) | 1420 – 1465 |
| Melting Point (°F) | 2588 – 2669; |
Braxton Fittings is a leading supplier of Duplex Steel UNS S31803 Forged Fittings in Midland, UK. We offer an extensive range of Duplex Steel UNS S31803 Forged 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.
Choose Duplex Steel UNS S31803 Forged Fittings from Braxton 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 Forged Fittings offer numerous advantages, including exceptional corrosion resistance, especially in chloride-rich environments, making them ideal for industries such as oil and gas, chemical processing, and marine. Their unique duplex structure provides high strength, excellent resistance to stress corrosion cracking, and superior fatigue resistance. These fittings also exhibit excellent weldability, ensuring easy installation and maintenance. With impressive toughness and the ability to withstand high-pressure and high-temperature conditions, Duplex Steel UNS S31803 Forged Fittings deliver long-lasting durability and reliable performance in critical applications.
Yes, custom sizes for Duplex Steel UNS S31803 Forged Fittings are available at Braxton Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@braxtonfittings.co.uk.
| STANDARD | UNS | |
| Duplex Steel Forged Fittings | S31803 / S32205 |
| DN-NPT | MAJOR DIAMETER MM | TAPPING /DRILL SIZE MM | TPI | PITCH MM |
|---|---|---|---|---|
| 1/16″ | 7.895 | 6.00 | 27 | 0.941 |
| 1/8″ | 10.242 | 8.25 | 27 | 0.941 |
| 1/4″ | 13.616 | 10.70 | 18 | 1.411 |
| 3/8″ | 17.055 | 14.10 | 18 | 1.411 |
| 1/2″ | 21.223 | 17.40 | 14 | 1.814 |
| 3/4″ | 26.568 | 22.60 | 14 | 1.814 |
| 1″ | 33.228 | 28.50 | 11.5 | 2.209 |
| 1¼” | 41.985 | 37.00 | 11.5 | 2.209 |
| 1½” | 48.054 | 43.50 | 11.5 | 2.209 |
| 2″ | 60.092 | 55.00 | 11.5 | 2.209 |
| 2½” | 72.699 | 65.50 | 8 | 3.175 |
| 3″ | 88.608 | 81.50 | 8 | 3.175 |
| 3½” | 101.316 | 94.30 | 8 | 3.175 |
| 4″ | 113.973 | 107.00 | 8 | 3.175 |
| 5″ | 141.300 | 134.384 | 8 | 3.175 |
| 6″ | 168.275 | 161.191 | 8 | 3.175 |
| 8″ | 219.075 | 211.673 | 8 | 3.175 |
| 10″ | 273.050 | 265.311 | 8 | 3.175 |
| 12″ | 323.850 | 315.793 | 8 | 3.175 |
| Description | Class Designation | ||
|---|---|---|---|
| 3000 | 6000 | 9000 | |
| Elbows 45 and 90 degrees, Tees, Crosses, Couplings, Half-Couplings, End or Pipe Caps | 1/2 – 4 | 1/2 – 2 | 1/2 – 2 |
| 1/2 – 4 | 1/2 – 2 | 1/2 – 2 | |
| 1/2 – 4 | 1/2 – 2 | 1/2 – 2 | |
| Pipe Size by Wall Thickness | SCH 80 / XS | SCH 160 | XXS |
Duplex Steel UNS S31803 Forged Fittings are widely used in industries requiring high strength and excellent resistance to corrosion. Common applications include oil and gas pipelines, chemical processing plants, heat exchangers, and desalination units, where they endure harsh environments and extreme conditions. These fittings are also used in marine and offshore platforms, power plants, and nuclear industries due to their superior resistance to stress corrosion cracking and their ability to withstand high-pressure and high-temperature operations. Their durability and reliability make them ideal for critical, demanding industrial applications.
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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