ASTM A182 F91 alloy steel ring type joint (RTJ) flanges are designed for high-pressure and high-temperature applications where a robust, leak-proof seal is crucial. These flanges are made from F91 alloy steel, known for its excellent strength and resistance to thermal fatigue and corrosion. The RTJ design features a groove that accommodates a metal ring gasket, which provides a reliable seal between the flanges. This type of flange is commonly used in the petrochemical, power generation, and oil and gas industries. The RTJ flange ensures a strong, tight seal even under extreme operating conditions.
| Property | Details |
|---|---|
| Material | ASTM A182 F91 Alloy Steel |
| Standards | ASTM A182, ANSI/ASME B16.5 |
| Type | Ring Type Joint (RTJ) Flange |
| Dimensions | Available in various sizes |
| Pressure Rating | Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500 |
| Temperature Rating | Suitable for high-temperature applications |
| Surface Finish | Smooth, precision-machined |
| Gasket Type | Metal ring gasket (RTJ) |
| Applications | Petrochemical, power generation, oil and gas |
| Advantages | Excellent seal integrity, high strength, temperature resistance |
| Function | Provides a leak-proof 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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