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 trusted partner for stainless steel piping solutions.
| 304 / 304L Pipe Fittings Specifications | ASTM A403/ ASME SA403 |
|---|---|
| 304 / 304L SS Pipe Fittings size | 304 / 304L Seamless Butt Weld Fittings : 1/2″ – 10″ 304 / 304L Welded Butt Weld Fittings : 1/2″ – 48″ |
| SS 304 / 304L Pipe Fittings Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10 |
| Stainless Steel 304 / 304L Buttweld Fittings Thickness | SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75 |
| 304 / 304L Buttweld Pipe FittingsType | DN15-DN1200 |
| ASTM A403 304 / 304L Buttweld Fitting Connection | Welding |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom ASTM A403 Grade WP304 / 304L Pipe Fitting |
| Size Range | ½” NB to 24″ NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) ASTM A403 WP 304 / 304L Buttweld Fitting |
| ASTM A403 WP304 / 304L Buttweld Fittings Manufacturing process | Push, Press, Forge, Cast, etc. |
| 304 / 304L Stainless Steel Buttweld Pipe Fittings Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| SA 403 WP304 / 304L Pipe Fittings Origin & Mills | Japanese, Indian, USA, Korean, European, Ukraine, Russian |
| Specialized manufacturer of | SS UNS S30400, S30403 90º Elbows, 45º Elbows, Tees, Cross, Reducer, Pipe Cap, Stub End, Pipe Bend |
| We provide Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
The stainless steel 304L buttweld fittings are primarily made of steel, with 18-20% chromium, 8-12% nickel, and low carbon content (≤0.03%) to provide excellent corrosion resistance, especially against oxidation and corrosion in various environments a contains manganese , silicon, phosphorus, and sulfur Occurs in small quantities. Mechanical properties of 304L include 485 MPa tensile strength, 170 MPa yield strength and 40% elongation at 50 mm The weldability and formability of the material is excellent, making it ideal for applications requiring high corrosion resistance and strength.
| Grade | C | Mn | Si | P | S | Cr | Ni |
| SS 304 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | 8 – 11 |
| SS 304L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.03 max | 18 – 20 | 8 – 13 |
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 304 / 304L | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
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 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.
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 304 | 1.4301 | S30400 | SUS 304 | 304S31 | 08Х18Н10 | Z7CN18‐09 | X5CrNi18-10 |
| SS 304L | 1.4306 / 1.4307 | S30403 | SUS 304L | 3304S11 | 03Х18Н11 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 |
Stainless Steel 304L Buttweld 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.
Stainless steel 304L Buttweld Fittings offer many advantages, including excellent corrosion resistance, reduced risk of 304L sensitivity when carbon content is low, especially in air, water and chemical environments, making it ideal for welding applications. It has excellent capacity and excellent strength, allowing it to withstand high temperatures and pressures. These fittings are durable, require minimal maintenance, are versatile in a variety of industries such as food processing, pharmaceuticals and construction in addition to providing long lasting reliability and easy cleaning, ensuring hygiene in use a in the importance of.
| NOMINAL PIPE SIZE | ALL FITTINGS | ALL FITTINGS | 180 DEG RETURN BENDS | REDUCERS | ELBOWS AND TEES | 180 DEG RETURN BENDS | CAPS |
| NPS | ID at End (1), (3), (4) | OD at Bevel (1), (2) | Centre-to- Centre O | Overall Length H | Centre -to- End Dimension A, B, C, M | Alignment of Ends U | Overall Length E |
| ½ to 2½ | 0.003 | 0.006 -0.003 | 0.025 | 0.006 | 0.006 | 0.003 | 0.012 |
| 3 to 3 ½ | 0.006 | 0.006 | 0.025 | 0.006 | 0.006 | 0.003 | 0.012 |
| 4 | 0.006 | 0.006 | 0.025 | 0.006 | 0.006 | 0.003 | 0.012 |
| 5 to 8 | 0.006 | 0.009 -0.006 | 0.025 | 0.006 | 0.006 | 0.003 | 0.025 |
| 10 to 18 | 0.012 | 0.016 -0.012 | 0.038 | 0.009 | 0.009 | 0.006 | 0.025 |
| 20 to 24 | 0.019 | 0.025 -0.019 | 0.038 | 0.009 | 0.009 | 0.006 | 0.025 |
| 26 to 30 | 0.019 | 0.025 -0.019 | … | 0.019 | 0.012 | … | 0.038 |
| 32 to 48 | 0.019 | 0.025 -0.019 | … | 0.019 | 0.019 | … |
Yes, custom sizes for Stainless Steel 304L Buttweld 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.
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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