Home > Pipe Fittings > Stainless Steel 904L Pipe Fittings
Weston Stainless, Midland, UK-based, is a reputable provider of quality stainless steel products that provides corrosion-resistant and long-lasting solutions for multiple sectors. Amongst its high-quality products, Stainless Steel 904L Pipe Fittings are distinguished by their unparalleled resistance to corrosion, excellent strength, and top-notch weldability. Graded as 904L grade, these fittings for pipes in various shapes are available, including elbows, tees, reducers, caps, and stub ends, to guarantee compatibility with disparate piping systems. Made of austenitic stainless steel, the fittings offer unparalleled resistance to pitting, acid, and chloride-induced corrosion to suit extreme applications demanding long-life reliability.
Stainless Steel 904L Pipe Fittings consist mainly of iron with high nickel (23-28%) and chromium (19-23%) content, which provides greater corrosion resistance. They also have molybdenum (4-5%), copper (1-2%), and low carbon, which gives them greater mechanical strength and resistance to acidic environments. These fittings have a tensile strength of approximately 490 MPa, a yield strength of about 220 MPa, and an elongation of 35%. Their physical characteristics are a density of approximately 8 g/cm³, high thermal expansion, and good conductivity, which makes them ideal for corrosive and high-stress applications.
| Grades | 201, 202, 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L |
| Type | Seamless / Welded / Fabricated |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
| Size | ½”NB to 48″NB in |
| Schedule | Sch 10s, 40s, 80s, 160s, XXS. |
| Dimensions | ANSI/ASME B16.9, B16.28, MSS-SP-43. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 904L | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 10.5 | – |
| Density | 8.0 g/cm3 |
| Melting Point | 1400 °C (2550 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
| Elongation | 35 % |
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The Stainless Steel 904L Pipe Fittings are extensively applied in industries that demand superior resistance to corrosion, including the chemical processing, marine, and offshore industries. They are imperative in heat exchangers, power plants, and pharmaceutical processing gear, where sulfuric, phosphoric, and acetic acid resistance is paramount. Furthermore, they find their applications in seawater desalination, pulp and paper, and food processing sectors because of their resistance and durability. Their good mechanical properties, chloride stress corrosion cracking resistance, and extended service life make them an optimal selection for critical industrial applications.
Corrosion-resistant components designed for extreme environments, offering durability and reliability for industrial applications. Ideal for handling aggressive chemicals and high temperatures.
Corrosion-resistant, high-strength components used to connect pipes in demanding environments. They provide durable, leak-proof joints for handling aggressive chemicals and high temperatures.
High-strength, corrosion-resistant components designed for secure, seamless connections. Ideal for high-pressure applications, they offer reliable, leak-proof joints in harsh chemical environments.
High-performance, corrosion-resistant components crafted without joints, ensuring reliable, leak-proof connections. Ideal for harsh environments with aggressive chemicals and high temperatures.
Corrosion-resistant components used to join four pipes at a central point. Ideal for high-pressure and chemical environments, ensuring reliable, leak-proof connections.
Corrosion-resistant components designed to connect three pipes at a right angle. They ensure strong, leak-proof joints, suitable for high-temperature and aggressive chemical applications.
Stainless Steel 904L Pipe Fittings are supplied with mill test certificates like EN 10204 3.1 or 3.2, guaranteeing compliance with global quality standards. The fittings are securely packaged in wooden crates, bubble wraps, or plastic-capped ends to protect them from transit damage. Schedules for delivery depend on the size of orders and destination, with effective logistics ensuring timely shipment. Special packaging arrangements can be made on request to suit special customer requirements to ensure the fittings reach the client in the best possible condition.







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