The F347/H ASTM Eccentric Reducer is an essential fitting in piping systems, designed to connect pipes of varying diameters with an offset centerline, preventing air accumulation and ensuring efficient fluid flow. Crafted from stainless steel grades F347 and F347H, this reducer boasts excellent resistance to intergranular corrosion and high mechanical strength at elevated temperatures. The presence of niobium stabilizes the alloy, preventing carbide precipitation during welding, while the higher carbon content in F347H enhances its performance in high-temperature applications. This fitting is widely used in industries such as chemical processing, petrochemical, and power generation, providing reliable and durable performance under challenging conditions.
| 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 | Eccentric Reducer |
| Connection Type | Welded 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, efficient fluid flow |
| Ordering Information | Specify pipe sizes, pressure class, and connection type |
| Suppliers | McMaster-Carr, Grainger, Penn Stainless Products |
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