The 180° Elbow F347/H ASTM is a crucial fitting used to change the direction of flow by 180 degrees in a piping system. Made from stainless steel grade F347 or F347H, this elbow is known for its exceptional resistance to intergranular corrosion and high-temperature strength. The “H” in F347H denotes a higher carbon content, which enhances the material’s performance in high-temperature applications. This elbow is typically employed in industries such as chemical processing, petrochemical, and power generation where durability and reliability under extreme conditions are paramount. The precise design and robust construction of the 180° Elbow ensure efficient flow control and long service life in challenging environments.
| Property | Details |
|---|---|
| Standard | ASTM A182 |
| Material | Stainless Steel F347/H |
| Chemical Composition | Chromium (Cr): 17-19%<br>Nickel (Ni): 9-13%<br>Carbon (C): Max 0.10% (F347), 0.04-0.10% (F347H)<br>Niobium (Nb): 10 x C Min<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 515 MPa (75,000 psi)<br>Yield Strength: Min 205 MPa (30,000 psi)<br>Elongation: Min 40% |
| Type | 180° Elbow |
| Connection Type | Welded or threaded connections |
| Size Range | Custom sizes available, typically from 1/2″ to 24″ |
| Pressure Rating | Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500 |
| Applications | High-temperature chemical processing, petrochemical industries, power generation |
| Manufacturing | Machined, heat-treated |
| Advantages | High-temperature strength, resistance to intergranular corrosion, precise directional flow control |
| Ordering Information | Specify pipe sizes, pressure class, and connection type |
| Suppliers | McMaster-Carr, Grainger, Penn Stainless Products |
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