Super Duplex Stainless Steel Plate
Super Duplex Stainless Steel Plate offers superior mechanical strength and pitting resistance for demanding environments. Available in S32750 and S32760 grades, these plates are ideal for pressure vessels, heat exchangers, and offshore structures.
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🔹 Product Overview
Super duplex stainless steel plate is a heavy-duty flat-rolled product designed for high strength and outstanding corrosion resistance in extreme environments. Its dual-phase microstructure of austenite and ferrite delivers superior performance in offshore, petrochemical, and pressure vessel applications. These plates meet global standards such as ASTM A240 and EN 10088-4, and are available in a range of thicknesses and custom sizes.
🔹 Application Areas
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Offshore platforms and subsea equipment
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Pressure vessels and storage tanks
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Heat exchangers and evaporators
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Desalination and wastewater treatment plants
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Pulp and paper processing units
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Structural components in marine and chemical industries
🔹 Product Features
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Superior resistance to pitting, crevice, and chloride stress corrosion
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Excellent mechanical properties and yield strength
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Maintains performance in harsh and high-temperature environments
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Available in hot rolled, annealed, and pickled finishes
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Supports welding, cutting, bending, and surface processing
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Certified to ASTM, ASME, and EN specifications
🔹 Technical Specifications
| Parameter | Range |
|---|---|
| Thickness | 3.0 mm – 100 mm (approx. ¹⁄₈″ – 4″) |
| Width | Up to 2500 mm (approx. 98⁵⁄₈″) |
| Length | 2000 mm – 12000 mm (approx. 78¾″ – 472⁷⁄₁₆″) |
| Grades | UNS S32750, S32760 |
| Tolerances | EN 10029 / ASTM A480 |
| Surface Finish | HRAP, 2B, No.1, pickled or brushed |
| Standards | ASTM A240 / ASME SA240 / EN 10028-7 |
🔹 Manufacturing Process
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Steel melting and refining
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Hot rolling into desired plate thickness
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Heat treatment and solution annealing
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Surface pickling or brushing
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Dimensional leveling and flattening
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Ultrasonic or NDT testing
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Marking, packaging, and shipment
🔹 Frequently Asked Questions (FAQ)
Q1: What distinguishes super duplex plates from standard stainless steel plates?
A1: Super duplex plates offer higher strength, better resistance to chloride stress corrosion, and improved performance in marine environments.
Q2: Are these plates suitable for welding?
A2: Yes, they offer excellent weldability using matching super duplex fillers and proper procedures.
Q3: Can the plates be customized to specific sizes?
A3: Absolutely. We provide cutting, beveling, and machining services based on your requirements.
Q4: What surface finishes are available?
A4: We supply HRAP, 2B, pickled, and custom brushed finishes.
Q5: Do you provide third-party inspection or certification?
A5: Yes. We offer EN10204 3.1/3.2 certificates, NACE compliance, and SGS/BV inspection upon request.
🔹 Still Have Questions?
Contact us today to learn more about super duplex stainless steel plates or request a detailed quote. Our technical team is ready to assist with specifications, standards, and material selection for your project.
