Tim Fittings stands out as a top-notch manufacturer and supplier of Duplex Steel Pipe Fittings right here in Wellington, New Zealand. They focus on crafting high-performance fittings that are built to thrive in tough industrial settings. Thanks to their cutting-edge manufacturing processes and strict quality checks, Tim Fittings ensures that their pipe fittings not only meet international standards but also boast remarkable strength, durability, and resistance to corrosion. Catering to industries like oil and gas, chemical processing, marine, and power generation, Tim Fittings has earned a solid reputation across New Zealand for providing dependable, long-lasting duplex steel fittings that are customized to fit the unique requirements of each application.
| Specifications | ASTM A815/ ASME SA815 |
|---|---|
| Bending Radius | Radius=1 D, 2D, 3 D, 5D, 6D, 8 D, 10D |
| Size Range | Seamless Butt-Weld Fitting: From 1/2″ – 10″ Welded ButtWeld Fitting: From 1/2″ – 48″ |
| Dimension | ASME/ ANSI B16.9 | ASME B16.28 | MSS-SP-43 | BS1560 | BS4504 | BS10 |
| Size Ranges | ½” NB to 24″ NB in Schedule 10s, 40s, 80s, 160s, XXS. |
| Other Grades | Duplex 2205 Fittings, UNS S31803 Fittings, UNS S32205 Fittings |
| Types | Welded | Seamless | Fabricated |
| Process of Duplex Steel Fittings Manufacturer in india | Push, Press, Cast, Forge. |
| Thickness of Fitting | SCH10, SCH 20, SCH30, STD SCH40, SCH80, SCH60, XS, SCH100, SCH 120, SCH140, SCH 160, XXS available with NACE MR 01-75 |
Duplex Steel Pipe Fittings are composed of a dual-phase microstructure of austenite and ferrite, typically containing 22-25% chromium, 4-7% nickel, and 2-4% molybdenum, with nitrogen for added strength and corrosion resistance. These fittings offer excellent mechanical properties, including a tensile strength of 620-850 MPa, yield strength of 450-600 MPa, and elongation of about 25%. They exhibit high resistance to pitting, crevice corrosion, and stress corrosion cracking, making them durable in harsh environments. Their superior weldability and toughness make them ideal for industrial and marine applications.
| 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 |
The Duplex Steel Pipe Fittings are crafted from a unique dual-phase stainless steel alloy that merges austenitic and ferritic microstructures. This typically includes about 22% chromium, 5-6% nickel, and 3% molybdenum. This special blend gives them outstanding resistance to issues like chloride-induced stress corrosion cracking, pitting, and crevice corrosion, all while maintaining excellent mechanical properties. Generally, duplex stainless steel fittings showcase tensile strengths around 620 MPa and improved toughness, making them perfect for high-pressure and corrosive situations.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex 2205 | 1.4462 | S31803 / S32205 |
Duplex Steel Pipe Fittings from Tim Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.
Duplex Steel Pipe Fittings offer exceptional corrosion resistance, making them ideal for use in harsh environments such as marine and chemical industries. They combine high strength and durability, ensuring reliable performance under high-pressure and high-temperature conditions. These fittings resist stress corrosion cracking and have good weldability, simplifying installation and maintenance processes. Their cost-effectiveness, achieved through reduced material weight without compromising strength, adds significant value. Duplex Steel’s versatility also ensures excellent resistance to pitting and crevice corrosion, making it a reliable choice for diverse and challenging applications.
Yes, custom sizes for Duplex Steel Pipe 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.
You’ll find Duplex Steel Pipe Fittings being put to good use in demanding applications such as offshore oil and gas platforms, chemical plants, desalination facilities, pulp and paper processing, and marine industries. Their resilience against harsh chemicals, high temperatures, and mechanical stress guarantees a long service life and safe operations. Throughout Wellington and New Zealand, Tim Fittings is celebrated for delivering duplex steel pipe fittings that strike the ideal balance between strength, corrosion resistance, and reliability for essential infrastructure projects.
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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