The ASTM A182 F304 threaded or screwed union is a fitting designed to connect two sections of pipe, allowing for easy disassembly and maintenance. Constructed from F304 stainless steel, this union provides excellent resistance to corrosion and oxidation, thanks to its 18-20% chromium and 8-10.5% nickel composition. The union features threaded ends for a secure, leak-proof connection that can handle high pressures and temperatures. With mechanical properties including a minimum tensile strength of 515 MPa and yield strength of 205 MPa, it is suitable for demanding applications in industries such as oil and gas, chemical processing, and power generation. The union’s design facilitates quick assembly and disassembly, making it ideal for systems that require frequent maintenance or adjustment.
| Property | Details |
|---|---|
| Standard | ASTM A182 |
| Material | Stainless Steel F304 |
| Chemical Composition | Chromium (Cr): 18-20%<br>Nickel (Ni): 8-10.5%<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 515 MPa (74,700 psi)<br>Yield Strength: Min 205 MPa (29,700 psi)<br>Elongation: Min 30% |
| Type | Threaded / Screwed Union |
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