Home > Pipe Fittings > Stainless Steel 317 Pipe Fittings
Weston Stainless, located in Midland, UK, is a reputable supplier of high-quality stainless steel products, serving various industries such as oil & gas, petrochemical, marine, and construction. Known for precision and excellence, Weston Stainless provides corrosion-resistant solutions that meet global standards. Among its product range, Stainless Steel 317 Pipe Fittings are made from molybdenum-bearing austenitic stainless steel, offering superior resistance to acidic and chloride-rich environments. Available in various shapes like elbows, tees, reducers, and couplings, these fittings ensure long-lasting durability and reliable performance in high-temperature, high-pressure, and harsh industrial applications.
Stainless Steel 317 Pipe Fittings are composed of iron, chromium (18-20%), nickel (11-15%), molybdenum (3-4%), and low carbon content, providing enhanced resistance to corrosion, pitting, and crevice corrosion. These fittings exhibit excellent mechanical properties, including a tensile strength of approximately 620 MPa, yield strength of 250 MPa, and elongation of 35%. Their physical properties include a density of 7.9 g/cm³ and a melting point of 1370-1400°C. With superior resistance to oxidation and acidic environments, these fittings ensure durability and reliable performance in high-temperature and high-pressure industrial 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 317 | 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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Stainless Steel 317 Pipe Fittings are ideal for applications requiring high corrosion resistance and strength. They are widely used in chemical processing, petrochemical, and pharmaceutical industries due to their resistance to acidic environments and chlorides. These fittings are also essential in marine, power generation, and food processing industries, where durability and reliability in high-temperature and high-pressure systems are critical. Additionally, they are used in wastewater treatment, heat exchangers, and pulp & paper industries, offering long-lasting performance in harsh conditions, ensuring secure connections and efficient fluid flow in critical systems.
Corrosion-resistant components designed for harsh environments. They provide durable, reliable connections in chemical processing, marine applications, and high-temperature systems, ensuring long-lasting performance.
Corrosion-resistant components used to join pipes with seamless, strong connections. They ensure durability and reliability in chemical processing and marine applications, handling aggressive conditions.
Corrosion-resistant components providing secure, leak-proof connections. They are designed for high-pressure applications, ensuring durability and reliability in chemical, marine, and demanding environments.
High-strength, corrosion-resistant components crafted without joints. They ensure robust, leak-proof connections in harsh environments, ideal for chemical processing and marine applications.
Corrosion-resistant components that connect four pipes at a central junction. They provide strong, reliable connections in high-pressure and harsh environments, suitable for demanding applications.
Ccorrosion-resistant components designed to connect three pipes at a right angle. They offer durable, reliable connections in harsh environments, ideal for chemical and marine applications.
Stainless Steel 317 Pipe Fittings are provided with essential test certificates, including Mill Test Certificates (MTC), third-party inspection reports, and compliance certificates like EN 10204 3.1/3.2, ensuring quality and traceability. These fittings are securely packaged in wooden crates, bundles, or bubble wrap to prevent damage during transit. Proper labeling ensures easy identification. Delivery is fast and efficient, with options for air, sea, or road transport, ensuring timely and safe delivery to industries worldwide.







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