Tim Fittings is a reliable manufacturer and supplier of top-notch Stainless Steel 304L Buttweld Fittings based in Wellington, New Zealand. Renowned for our precision engineering and durable products, we offer a diverse selection of fittings designed to meet the rigorous demands of various industries. Our Stainless Steel 304L Buttweld Fittings are crafted to deliver outstanding performance, exceptional corrosion resistance, and robust strength, ensuring they last in critical applications. With a strong commitment to quality control and customer satisfaction, Tim Fittings has built a solid reputation throughout New Zealand as a dependable partner for stainless steel 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 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; |
Our Stainless Steel 304L Buttweld Fittings, available from Tim Fittings in Wellington, are made from low-carbon 304L stainless steel, which enhances their weldability while reducing the risk of carbide precipitation. The fittings contain about 18–20% chromium and 8–12% nickel, with a low carbon content (≤0.03%) that boosts their corrosion resistance. They boast impressive mechanical properties, featuring a tensile strength of around 485 MPa and a yield strength of 170 MPa. Even at low temperatures, they maintain good ductility and toughness, making them perfect for both structural and pressure applications where long-term performance is essential.
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 Tim 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 Tim Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@timfittings.co.nz.
| 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 |
Tim Fittings’ Stainless Steel 304L Buttweld Fittings are widely utilized across various industries in Wellington and beyond. Their excellent corrosion resistance and weldability make them ideal for chemical processing, food and beverage manufacturing, pharmaceuticals, petrochemical plants, and marine environments. These fittings are perfect for systems that require consistent flow, structural integrity, and resilience against harsh conditions. Common applications include pipelines, pressure vessels, heat exchangers, and water treatment facilities. Their hygienic properties and low maintenance needs further enhance their appeal in demanding environments.
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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