Grant Fittings, based in Manila, Philippines, is a trusted manufacturer and supplier of high-quality industrial fittings. Known for precision and reliability, we provide a wide range of products tailored to meet the needs of various industries. Our Duplex Steel Forged Fittings are designed for exceptional strength, superior corrosion resistance, and excellent performance in both high-pressure and high-temperature environments. Ideal for demanding applications in sectors like oil and gas, power generation, and marine, Grant Fittings ensures unparalleled quality and service excellence.
| 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 |
Grant Fittings stands out as a reliable manufacturer and supplier of Duplex Steel Forged Fittings right in the heart of Manila, Philippines. Renowned for crafting top-notch forged fittings like elbows, tees, reducers, and couplings, Grant Fittings caters to industries that demand exceptional strength and resistance to corrosion. Each fitting is meticulously made from duplex stainless steel alloys, adhering to international standards such as ASTM A182 and ASME B16.11. With a strong commitment to quality control and material traceability, Grant Fittings guarantees durable and dependable piping components that are perfect for challenging applications in sectors like chemical processing, oil and gas, marine, and power generation throughout the Philippines.
| 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 |
Duplex Steel forged fittings bring together the best of both austenitic and ferritic stainless steels, delivering remarkable mechanical properties and resistance to corrosion. Typically made up of 22-25% chromium, 4-6% nickel, and about 3% molybdenum, duplex stainless steel boasts impressive tensile strength—around 620 MPa—and exceptional resistance to stress corrosion cracking, pitting, and crevice corrosion. These fittings are designed to maintain their structural integrity even in harsh environments, such as those rich in chlorides and at elevated temperatures. Grant Fittings produces forged fittings that are not only highly weldable and tough but also suitable for high-pressure applications, ensuring long-lasting performance and safety.
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 Grant Fittings for superior quality, exceptional corrosion resistance, and reliable performance in extreme conditions. We offer customized solutions backed by expert support and industry experience.
The Duplex Steel forged fittings from Grant Fittings find their way into various industries that face aggressive corrosive environments and demanding operational conditions. Common applications include offshore oil and gas platforms, chemical processing plants, desalination facilities, pulp and paper manufacturing, and power plants. Their outstanding strength and corrosion resistance make them the perfect choice for piping systems that transport seawater, acids, and other corrosive substances.
Yes, custom sizes for Duplex Steel Forged Fittings are available at Grant Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@grantfittings.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 widely used in industries requiring high strength and resistance to corrosion, particularly in harsh environments. Common applications include the oil and gas, chemical processing, and marine sectors, where they are employed in pipelines, pressure vessels, and heat exchangers. These fittings are also used in desalination plants, offshore platforms, and power generation facilities, offering excellent performance under high-pressure and high-temperature conditions. Their resistance to stress corrosion cracking and superior mechanical properties make them a reliable choice for critical applications in various industrial sectors.
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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