ASTM A240 (UNS S32750) Stainless Steel Sheet
Leading A240 (UNS S32750) Stainless Steel Sheet Manufacturer in China
ASTM A240 (UNS S32750), also known as Alloy 2507, is the leading super duplex stainless steel, engineered for superior performance in the most demanding and highly corrosive environments. As a super duplex stainless steel, UNS S32750 features a balanced microstructure of austenite and ferrite, combining the beneficial properties of both. This results in a material with remarkable mechanical strength—often double the yield strength of standard austenitic stainless steels—and excellent ductility and toughness at both ambient and sub-zero temperatures. This versatile and robust material is the premier choice for critical applications across various industries, including chemical processing, oil and gas, and pulp and paper.
Discover high-quality A240 (UNS S32750) stainless sheet products here.
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Characteristics of A240 (UNS S32750) Stainless Steel
- Exceptional Corrosion Resistance: This super duplex grade offers outstanding resistance to a wide range of corrosive media.
- High Mechanical Strength: UNS S32750 delivers double the yield strength of standard austenitic stainless steels.
- Excellent Toughness and Ductility: High-strength yet ductile, with excellent impact resistance even below -50°C.
- Good Weldability and Formability: Super duplex S32750 exhibits excellent weldability and formability, allowing for welding using standard welding methods.
- Balanced Dual-Phase Microstructure: A balanced structure delivers both ferritic strength and austenitic corrosion resistance.
- Superiority in Harsh Environments: The combination of high strength and exceptional corrosion resistance makes this alloy ideal for severely corrosive environments.
- High Resistance to Erosion and Fatigue: UNS S32750 demonstrates high resistance to erosion, corrosion, and corrosion fatigue.
- Favorable Thermal Properties: Compared to austenitic steels, super duplex S32750 has a lower coefficient of thermal expansion and higher thermal conductivity.
ASTM A240 (UNS S32750) Stainless Steel Technical Specifications
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.030 max |
| Chromium (Cr) | 24.0 - 26.0 |
| Molybdenum (Mo) | 3.0 - 5.0 |
| Nickel (Ni) | 6.0 - 8.0 |
| Manganese (Mn) | 1.20 max |
| Silicon (Si) | 0.80 max |
| Phosphorus (P) | 0.035 max |
| Sulfur (S) | 0.020 max |
| Nitrogen (N) | 0.24 - 0.32 |
| Property | Typical Value |
|---|---|
| Tensile Strength | 795 MPa (min) |
| Yield Strength (0.2% Offset) | 550 MPa (min) |
| Elongation | 15% (min) |
| Hardness (Brinell) | 310 HBW (max) |
| Property | Value |
|---|---|
| Density | 7.8 g/cm³ |
| Melting Point | 1350 °C |
| Modulus of Elasticity | 200 GPa |
| Thermal Conductivity (at 20°C) | 13.0 W/m·K |
- EN： 1.4410
- AFNOR： Z3 CND 25.06 Az
- ASTM： A240, A182 Grade F53
- W.Nr.： 1.4410
Common Applications of A240 (UNS S32750) Stainless Steel
Offshore & Marine Environments
Desalination Plants
Chemical Processing Industry
Pollution Control Systems
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A240 (UNS S32750) Stainless Steel Sheet Customization
In addition to our standard stock, we offer a comprehensive suite of processing services to supply ASTM A240 (UNS S32750) super duplex steel sheets tailored precisely to your project’s specific requirements.
- Precision Cutting Services: We offer expert cut-to-size services utilizing advanced methods, including waterjet, plasma, and laser cutting, to meet your exact length and width requirements.
- Broad Thickness & Plate Options: Our super duplex sheets are available in a wide variety of thicknesses to accommodate applications ranging from tank linings to heavy-duty structural components.
- Custom Surface Conditioning: Select from multiple surface finishes to meet your functional or aesthetic requirements, including standard mill finishes like 2B, as well as specialized options such as pickling and passivation.
- Expert Fabrication and Welding: We offer value-added fabrication services, including high-tonnage bending and forming, tailored machining, and expert welding services.
Contact our technical team to discuss your custom fabrication needs.
Contact Us
For projects requiring extreme corrosion resistance and double the strength of standard stainless steels, our ASTM A240 S32750 sheets deliver exceptional performance in marine, chemical, and offshore environments. With PREN >40 and outstanding chloride resistance, this super duplex grade withstands the harshest conditions.
Contact us today for a competitive quote. We provide precision-cut sizes, custom finishes, and expert technical support to meet your exact specifications. And let our specialists help you select the ideal solution for your critical application.
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