Zain Fittings, based in Surabaya, Indonesia, stands out as a trusted and well-regarded manufacturer and supplier of Duplex Steel UNS S31803 Forged Fittings in Jakarta. With a solid reputation for quality and precision, Zain Fittings focuses on delivering high-strength forged fittings crafted from Duplex S31803, specifically designed to thrive in tough industrial settings. These fittings are built to provide exceptional corrosion resistance, impressive mechanical strength, and dependable performance even under pressure. Catering to a variety of sectors throughout Jakarta, Zain Fittings guarantees that its forged fittings comply with international standards, making them the go-to choice for critical piping systems in offshore, petrochemical, and marine industries.
| 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. |
As a top player in the market for Duplex Steel UNS S31803 Forged Fittings in Jakarta, Zain Fittings manufactures fittings that contain about 22% Chromium, 5–6% Nickel, and 3% Molybdenum, featuring a well-balanced microstructure of austenite and ferrite. This unique composition ensures outstanding resistance to stress corrosion cracking, pitting, and crevice corrosion. On the mechanical side, S31803 boasts a tensile strength of around 620 MPa and a yield strength of about 450 MPa, making it nearly twice as strong as standard austenitic stainless steels. These impressive properties make Duplex S31803 perfect for demanding and corrosive applications.
| 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; |
Zain Fittings’ Duplex Steel UNS S31803 Forged Fittings are extensively utilized in Jakarta’s industrial landscape, especially in oil and gas exploration, offshore platforms, desalination plants, power generation, and chemical processing. These fittings are highly regarded for their robust resistance to chloride-induced corrosion and superior mechanical strength, making them ideal for aggressive environments and high-pressure systems. The balanced duplex structure enhances durability and fatigue resistance, ensuring that Zain Fittings remains a top choice for industries that require reliable and high-performance solutions.
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 Zain 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 Zain Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@zainfittings.id.
| 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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