Tolu Fittings, a prominent manufacturer and supplier located in Abuja, Nigeria, focuses on crafting high-quality Duplex Steel Forged Fittings that are built to excel in tough environments. These fittings are known for their strength, durability, and remarkable resistance to corrosion, making them perfect for industries that demand reliability and longevity. Made from top-notch duplex stainless steel and utilizing advanced forging techniques, Tolu Fittings guarantees precision engineering while adhering to international standards. Their Duplex Steel Forged Fittings are trusted across various sectors, including oil and gas, chemical processing, marine engineering, and power generation, thanks to their robustness and impressive mechanical efficiency.
| Standards | ASTM A182 / ASME SA182 |
| Specifications | ASME B16.11, MSS SP-79, 83, 95, 97, BS 3799 |
| Size Range | NPS 1/8″- 4″ (DN 6~100) |
| Rating Pressure | Threaded End – 2000/3000/6000 LBS. Socket weld End – 3000/6000/9000 LBS. |
| Type | Socket Weld, Screwed, BSP Threaded & NPT Threaded |
These fittings are made up of about 22% chromium, 5–6% nickel, 3% molybdenum, and nitrogen, which together create a balanced ferritic-austenitic microstructure. This unique composition provides high tensile strength of around 620 MPa and yield strength close to 450 MPa, along with excellent impact toughness. The fittings are particularly resistant to pitting, crevice corrosion, and stress corrosion cracking, especially in environments rich in chlorides and acids. Their combination of high mechanical strength and corrosion resistance ensures they perform exceptionally well under extreme pressure and temperature 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 |
Tolu Fittings is a leading supplier of Duplex Steel Forged Fittings in Abuja, Nigeria. We offer an extensive range of Duplex Steel 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 Forged Fittings from Tolu 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 Forged Fittings offer several advantages, including exceptional corrosion resistance, particularly in chloride environments, making them ideal for industries like oil and gas, marine, and chemical processing. Their unique composition of austenitic and ferritic steels provides high strength, excellent resistance to stress corrosion cracking, and superior fatigue resistance. These fittings also offer excellent weldability and formability, allowing easy installation. With impressive toughness, even at low temperatures, Duplex Steel Forged Fittings are durable, reliable, and capable of withstanding high-pressure and high-temperature conditions, ensuring long-lasting performance and minimal maintenance.
Yes, custom sizes for Duplex Steel Forged Fittings are available at Tolu Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@tolufittings.com.
| 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 Forged Fittings are commonly found in oil and gas refineries, petrochemical industries, marine settings, and desalination plants, all thanks to their superior corrosion resistance and mechanical strength. They are perfect for high-pressure pipelines, valves, heat exchangers, and offshore drilling systems. Additionally, these fittings are utilized in chemical processing units, power generation facilities, and the pulp and paper industry, where resistance to stress and corrosion is vital. Their durability and reliability make them a key component in today’s industrial infrastructure.
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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