Home > Pipe Fittings > Stainless Steel Elbow
Weston Stainless, Midland, UK, is a prominent distributor of high-performance stainless steel products, with expertise in industrial piping solutions. Its product range includes stainless steel elbows, which are commonly employed in piping systems to alter the direction of fluid flow. Stainless steel elbows come in grades 304, 316, and 321, which provide good corrosion resistance and durability. They are available in various shapes, such as long-radius and short-radius elbows, and are made of high-quality stainless steel materials to ensure high strength and durability in harsh environments.
Stainless steel elbows are made mostly of iron, chromium (16-18%), nickel (8-10%), and molybdenum in some grades, offering higher resistance to oxidation and corrosion. Mechanically, they have high tensile strength (500-700 MPa), good yield strength (200-300 MPa), and very good elongation properties (up to 40%). Their physical characteristics have a density around 7.9 g/cm³, melting point around 1400°C, and coefficients of thermal expansion that provide support in terms of stability under fluctuating temperatures for use in applications involving high temperatures and pressures.
| 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. |
| SS | 304 | 304N | 304LN |
|---|---|---|---|
| Ni | 8 – 11 | 8 – 11 | 8 – 11 |
| Fe | Balance | ||
| Cr | 18 – 20 | 18 – 20 | 18 – 20 |
| C | 0.08 max | 0.08 max | 0.035 max |
| Si | 0.75 max | 0.75 max | 0.75 max |
| Mn | 2 max | 2 max | 2 max |
| P | 0.040 max | 0.040 max | 0.040 max |
| S | 0.030 max | 0.030 max | 0.030 max |
| N | 0.10 – 0.16 | 0.10 – 0.16 | |
| 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 elbows have applications in numerous industries such as oil and gas, chemical refining, power production, and treatment of water for purposes of piping fluid flow direction changes. They play a fundamental role in HVAC applications, food processing plants, and shipbuilding because of their resistance to corrosion and hardness. In construction, the elbows are important when it comes to plumbing and structural piping usage. They can provide leak-proof seals and help preserve system efficiency in petrochemical refineries because of their capacity to operate in harsh environments.
Yes, stainless steel elbows can be welded using methods like TIG, MIG, or stick welding. Proper technique, filler material, and heat management ensure strong, corrosion-resistant joints.
Stainless steel elbows resist corrosion due to chromium content forming a protective oxide layer. However, exposure to harsh conditions like chlorides or acidic environments may cause localized corrosion, such as pitting or crevice corrosion.
Yes, stainless steel elbows are suitable for natural gas applications due to their durability, corrosion resistance, and ability to handle high pressure and temperature, ensuring safe and reliable performance.
Stainless steel elbows made from austenitic grades (e.g., 304, 316) are generally non-magnetic. However, cold working or certain ferritic or martensitic grades may exhibit slight magnetic properties.
Stainless steel elbows are supplied with test certificates, such as Mill Test Certificates (MTC) according to EN 10204 3.1/3.2, for assurance of quality and compliance. They are tested with rigorous tests like hydrostatic, PMI (Positive Material Identification), and ultrasonic testing to ensure performance. Packaging is in wooden cases, pallets, or plastic wrapping to avoid damage during shipping. Delivery is effective, ensuring worldwide shipments arrive on time, meeting industries with high-priority demands for high-quality stainless steel piping components.
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