The ASTM A182 F321/F321H forged socket weld cross is a high-quality fitting used in piping systems to connect four pipes at right angles. Made from F321 and F321H stainless steel, these crosses are designed for high-temperature and corrosive environments. The addition of titanium in F321 and F321H alloys enhances resistance to intergranular corrosion and stabilizes the material at elevated temperatures. F321H, with higher carbon content, provides improved strength at high temperatures. The socket weld design ensures a strong, leak-proof connection, making these crosses ideal for demanding applications in industries such as petrochemical, aerospace, and chemical processing. The forging process ensures superior mechanical properties, resulting in robust and durable fittings that can withstand high pressure and mechanical stress.
| Property | Details |
|---|---|
| Standard | ASTM A182 |
| Material | Stainless Steel F321, F321H |
| 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% (F321), Max 0.10% (F321H)<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 Socket Weld Cross |
| Connection Type | Socket Weld |
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