Khuliso Fittings stands out as a top-notch manufacturer and supplier located in Cape Town, South Africa, specializing in high-quality **Duplex Steel UNS S32205 Forged Fittings**. These fittings are designed to offer outstanding corrosion resistance, impressive strength, and long-lasting durability, making them perfect for tough industrial settings. UNS S32205 is a type of duplex stainless steel that merges austenitic and ferritic microstructures, giving it exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking, all while maintaining excellent mechanical properties. At Khuliso Fittings, we ensure that every product meets international quality standards, catering to industries like petrochemical, offshore oil and gas, chemical processing, and marine applications with reliable, durable, and precisely engineered forged piping solutions.
| 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 S32205 Forged Fittings** are made up of about 22% chromium, 5–6% nickel, 3% molybdenum, along with trace amounts of nitrogen, manganese, and carbon. This unique blend offers remarkable resistance to chloride-induced corrosion, pitting, and stress corrosion cracking, while also providing high tensile strength and toughness. Typically, these fittings boast a tensile strength of around 620–720 MPa, yield strength of 450–550 MPa, and an elongation of 25–30%. They also excel in weldability, dimensional stability, and durability, even in harsh industrial conditions.
| 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; |
Khuliso Fittings is a leading supplier of Duplex Steel UNS S32205 Forged Fittings in Cape Town, South Africa. We offer an extensive range of Duplex Steel UNS S32205 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 S32205 Forged Fittings from Khuliso 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 S32205 Forged Fittings offer numerous advantages, including superior corrosion resistance, particularly in chloride environments, making them ideal for marine, chemical, and oil and gas industries. Their unique duplex microstructure combines the best of both austenitic and ferritic steels, providing high strength and excellent resistance to stress corrosion cracking. These fittings also offer enhanced fatigue resistance, high toughness, and excellent weldability, ensuring reliability and ease of installation. With impressive mechanical properties, Duplex Steel UNS S32205 Forged Fittings are perfect for high-pressure, high-temperature applications, delivering long-term durability and performance.
Yes, custom sizes for Duplex Steel UNS S32205 Forged Fittings are available at Khuliso Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@khulisofittings.co.za.
| 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 |
You’ll find **Duplex Steel UNS S32205 Forged Fittings** in a variety of applications that demand high corrosion resistance and mechanical strength. They are commonly used in chemical and petrochemical processing equipment, desalination plants, seawater systems, heat exchangers, and offshore oil and gas pipelines. Additionally, they are well-suited for the pulp and paper industries, power generation units, and marine engineering projects. The combination of high strength, durability, and resistance to aggressive environments makes these fittings a perfect choice for critical piping systems in challenging industrial settings.
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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