The ASTMÂ F304L Short Radius (SR) Elbow is a pipe fitting designed to change the direction of flow in a piping system by 90 degrees or 45 degrees, featuring a radius of curvature equal to the pipe’s diameter. Constructed from F304L stainless steel, this elbow offers excellent resistance to corrosion and high-temperature environments, making it suitable for applications in chemical processing, oil and gas, and power generation. Its low carbon content minimizes the risk of carbide precipitation during welding, ensuring superior performance and longevity in welded systems. The short radius design is ideal for tight spaces and compact piping arrangements, though it may introduce slightly higher pressure drops compared to long radius elbows.
| Property | Details |
|---|---|
| Standard | ASTM |
| Material | Stainless Steel F304L |
| Chemical Composition | Chromium (Cr): 18-20%<br>Nickel (Ni): 8-12%<br>Carbon (C): Max 0.03%<br>Manganese (Mn): Max 2%<br>Silicon (Si): Max 1%<br>Phosphorus (P): Max 0.045%<br>Sulfur (S): Max 0.03% |
| Mechanical Properties | Tensile Strength: Min 485 MPa (70,000 psi)<br>Yield Strength: Min 170 MPa (25,000 psi)<br>Elongation: Min 35% |
| Type | Short Radius (SR) Elbow |
| Radius | Equal to the diameter of the pipe |
| Connection Type | Butt Weld, Socket Weld, Threaded |
| Size Range | 1/2″ to 24″ |
| Pressure Rating | Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500 |
| Applications | Chemical processing, oil and gas, power generation |
| Manufacturing | Machined, heat-treated |
| Advantages | High strength, corrosion resistance, compact design |
| Ordering Information | Specify size, connection type, and pressure class |
| Suppliers | McMaster-Carr, Grainger, Penn Stainless Products |
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