The ASTM A182 F347 forged socket weld full coupling is a crucial fitting used to connect two pipes of the same diameter in a piping system, allowing for a continuation of the pipeline. Crafted from F347 stainless steel, this full coupling is known for its excellent resistance to intergranular corrosion due to the addition of columbium (niobium), which stabilizes the material and prevents carbide precipitation. This makes it suitable for high-temperature and aggressive environments. The socket weld design involves fitting the pipe into the coupling and welding it securely, ensuring a robust and leak-proof joint. The forged construction of the coupling provides enhanced strength and durability, making it ideal for high-pressure applications in sectors such as petrochemical, chemical processing, and aerospace. Its reliable performance under harsh conditions ensures the integrity and longevity of the piping system.
| Property | Details |
|---|---|
| Standard | ASTM A182 |
| Material | Stainless Steel F347 |
| Chemical Composition | Chromium (Cr): 17-19%<br>Nickel (Ni): 9-13%<br>Columbium (Cb): 10 x C%<br>Carbon (C): Max 0.08%<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 520 MPa (75,300 psi)<br>Yield Strength: Min 210 MPa (30,500 psi)<br>Elongation: Min 30% |
| Type | Forged Socket Weld Full Coupling |
| Connection Type | Socket Weld |
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