Super Duplex Steel Fittings
Super Duplex Steel Fittings are engineered components made from super duplex stainless steel alloys, known for their exceptional strength, corrosion resistance, and durability in harsh environments. These fittings are widely used in industries such as oil and gas, chemical processing, and marine applications where resistance to stress corrosion cracking, pitting, and crevice corrosion is critical. The super duplex microstructure combines austenitic and ferritic phases, providing a balanced combination of mechanical toughness and corrosion resistance. Available in various types such as elbows, tees, reducers, and couplings, super duplex steel fittings ensure reliable connections and longevity in piping systems exposed to aggressive media and high pressure. Their excellent weldability and resistance to high temperatures further enhance their suitability for demanding industrial applications.
Super Duplex Steel Fittings - Specifications
| Parameter | Description / Options |
|---|---|
| Standards | ASTM A815, ASTM A182, ASTM A403, ASME B16.9, ASME B16.11, EN 10253-4, ISO 3419 |
| Grades | UNS S32750, UNS S32760, ASTM A182 F55, F53 |
| Type | Elbows (45°, 90°, 180°), Tees, Reducers (Concentric & Eccentric), Couplings, Caps, Crosses, Stub Ends |
| Size Range | 1/2" to 48" (15 mm to 1200 mm) |
| Pressure Rating | Class 150 to 2500 (ASME B16.5 / B16.47) |
| Connection Types | Butt Weld, Socket Weld, Threaded |
| Surface Finish | Mill Finish, Pickled & Passivated, Polished |
| Testing | Hydrostatic Test, PMI (Positive Material Identification), Ultrasonic Testing (UT), Dye Penetrant Testing (DPT) |
| Certification | EN 10204 3.1 / 3.2 Mill Test Certificate (MTC) |
| Applications | Offshore Oil & Gas, Chemical Plants, Power Plants, Desalination, Marine Engineering |
Applications
| Application | Description |
|---|---|
| Marine Industry | Used for deep-sea applications where high resistance to pitting and crevice corrosion is required. |
| Oil & Gas | Critical in offshore rigs and subsea installations where both strength and corrosion resistance are essential. |
| Petrochemical | Fittings used in equipment handling aggressive chemicals at high temperatures and pressures. |
| Water Treatment | Used in systems with highly corrosive elements like seawater desalination. |
| Power Plants | For use in high-pressure, high-temperature applications, like steam and gas systems. |