Super Duplex Steel Plate
Super Duplex Steel Plate is a high-performance stainless steel product known for its excellent corrosion resistance, high strength, and durability. It is made from a mixed microstructure of austenite and ferrite, which gives it superior mechanical and chemical properties compared to standard duplex or austenitic stainless steels. This type of steel plate is especially resistant to pitting, crevice corrosion, and stress corrosion cracking, making it ideal for use in harsh environments such as offshore oil rigs, chemical processing plants, and marine applications. Super Duplex Steel Plates also offer good weldability and are often used in the construction of pressure vessels, heat exchangers, and desalination plants. Due to their strength and reliability, they are a preferred material in industries that require high performance under extreme conditions.
Super Duplex Steel Plate - Specifications
| Parameter | Description / Options |
|---|---|
| Material Grade | UNS S32750, UNS S32760, F53, F55 |
| Standards | ASTM A240, ASME SA240, EN 10088-2, NACE MR0175 |
| Thickness Range | 3mm to 100mm (custom on request) |
| Width | 1000mm to 2500mm |
| Length | 2000mm to 6000mm or as required |
| Surface Finish | Hot Rolled, Cold Rolled, No.1, 2B, BA, Polished |
| Heat Treatment | Solution Annealed at 1050–1150°C followed by rapid quenching |
| Mechanical Properties | Yield Strength ≥ 550 MPa, Tensile Strength ≥ 750 MPa, Elongation ≥ 25% |
| Hardness | Max 32 HRC |
| Corrosion Resistance | Excellent pitting and crevice corrosion resistance, PREN ≥ 40 |
| Testing | Ultrasonic Test, PMI, IGC Test, Mechanical & Chemical Analysis |
| Certifications | EN 10204 3.1 / 3.2, NACE MR0175, PED 2014/68/EU |
| Applications | Offshore Platforms, Pressure Vessels, Heat Exchangers, Pulp & Paper, Marine, Desalination |
Key Feature
| Key Feature | Description |
|---|---|
| Outstanding Corrosion Resistance | Superior resistance to corrosion, particularly in chloride environments and seawater. |
| High Strength | Exceptional strength-to-weight ratio, even in extreme pressure environments. |
| High Toughness | Remarkable toughness, making it ideal for high-impact and cryogenic applications. |
| Fatigue and Stress Resistance | Superior resistance to fatigue and stress cracking, ideal for dynamic load applications. |
| Weldability | Good weldability, but requires careful attention to prevent ferrite formation. |
| Resilience in Extreme Conditions | Maintains performance even under extreme temperature and pressure conditions. |
| Versatility | Used in offshore, chemical, and power generation industries for critical applications. |