ASTM A182 F91 alloy steel tongue and groove (T&G) flanges are designed to provide a strong and secure connection in piping systems, especially in high-pressure and high-temperature environments. These flanges feature a tongue and groove design where one flange has a projecting “tongue” and the other has a corresponding “groove.” This design facilitates easy alignment and provides a tight seal, enhancing the joint’s integrity. Made from F91 alloy steel, these flanges offer exceptional strength, thermal fatigue resistance, and durability. They are commonly used in power generation, petrochemical, and industrial applications where reliability and performance are critical.
| Property | Details |
|---|---|
| Material | ASTM A182 F91 Alloy Steel |
| Standards | ASTM A182, ANSI/ASME B16.5 |
| Type | Tongue & Groove (T&G) Flange |
| Dimensions | Available in various sizes |
| Pressure Rating | Class 150, Class 300, Class 600, Class 900, Class 1500 |
| Temperature Rating | Suitable for high-temperature applications |
| Surface Finish | Smooth, precision-machined |
| Gasket Type | Flat gasket or metal ring gasket |
| Applications | Power generation, petrochemical, industrial |
| Advantages | Easy alignment, secure seal, high strength |
| Function | Provides a reliable and tight seal in high-pressure systems |
| Connection Type | Bolted connection |
| Manufacturing | Precision-machined for accurate fitting |
| Ordering Information | Specify material grade, size, pressure class |
| Suppliers | McMaster-Carr, Grainger, Swagelok, Penn Stainless Products |
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