The ASTM A182 F321 threaded/screwed union is a vital pipe fitting used to connect two pipes, allowing for easy assembly and disassembly without the need for cutting. Made from F321 stainless steel, which includes titanium for enhanced resistance to intergranular corrosion, this union is designed to withstand high temperatures and corrosive environments. The threaded connection ensures a secure and leak-proof joint, making it ideal for applications in the petrochemical, chemical processing, and aerospace industries. The forging process used in manufacturing this union imparts superior mechanical properties, ensuring durability and strength under high pressure and mechanical stress.
| Property | Details |
|---|---|
| Standard | ASTM A182 |
| Material | Stainless Steel 321 |
| Chemical Composition | Chromium (Cr): 17-19%<br>Nickel (Ni): 9-12%<br>Titanium (Ti): 5 x C% – 0.70%<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 | Forged Threaded/Screwed Union |
| Connection Type | Threaded/Screwed |
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