Duplex and Super Duplex Steel Sheets are highly demanded engineering materials known for their exceptional combination of strength, toughness, and superior corrosion resistance. These sheets are manufactured using advanced metallurgical techniques that blend both austenitic and ferritic phases in a balanced microstructure. This dual-phase structure offers remarkable resistance to stress corrosion cracking, pitting, and crevice corrosion, which makes Duplex and Super Duplex Sheets far superior to conventional stainless steels in aggressive environments. Neonox Overseas is a leading supplier and exporter of Duplex and Super Duplex Sheets, catering to industries such as oil & gas, chemical processing, petrochemicals, desalination, power generation, pulp & paper, and marine engineering.
Duplex Steel Sheets, including popular grades like UNS S31803 and UNS S32205, are widely appreciated for their high tensile strength, excellent weldability, and cost-effectiveness compared to nickel alloys. They perform exceptionally well in applications where high strength is required along with resistance to chloride-induced corrosion. Super Duplex Sheets, such as UNS S32750 and UNS S32760, go a step further by offering enhanced mechanical properties and outstanding resistance in highly corrosive and saline environments. These sheets are particularly suitable for offshore platforms, subsea equipment, chemical tankers, and heat exchangers where durability and performance are non-negotiable.
At Neonox Overseas, we provide Duplex and Super Duplex Sheets in a wide variety of forms, including hot-rolled sheets, cold-rolled sheets, perforated sheets, shim sheets, and clad sheets. They are available in different surface finishes such as 2B, No.1, BA, hairline, satin, and polished finishes to meet the diverse requirements of industries worldwide. Customers can choose from customized thicknesses, widths, and lengths to match their specific project needs.
Our Duplex and Super Duplex Sheets comply with international standards such as ASTM, ASME, EN, DIN, and JIS, ensuring superior quality and long-lasting performance. They are supplied in annealed and pickled conditions, ready for fabrication and welding. With strict quality control and adherence to international specifications, Neonox Overseas has built a reputation for delivering premium Duplex and Super Duplex Steel Sheets that meet global client expectations.
Whether it’s for structural applications, chemical storage tanks, seawater desalination plants, or high-pressure vessels, Duplex and Super Duplex Sheets provide the ultimate combination of strength, corrosion resistance, and cost efficiency. By choosing Neonox Overseas, industries gain access to a trusted partner that guarantees on-time delivery, competitive pricing, and technical support for every project.
| Category | Details |
|---|---|
| Grades |
Duplex: UNS S31803, UNS S32205, 2205 Super Duplex: UNS S32750, UNS S32760, 2507 |
| Standards |
ASTM A240 / ASME SA240 EN 1.4462, EN 1.4410 DIN, JIS, ISO Standards |
| Thickness Range | 0.3 mm to 120 mm |
| Widths | 1000 mm, 1219 mm, 1500 mm, 2000 mm, Custom sizes |
| Lengths | 2000 mm, 2500 mm, 3000 mm, 6000 mm, Custom cut lengths |
| Available Forms |
Hot Rolled Sheets Cold Rolled Sheets Shim Sheets Clad Sheets Perforated Sheets Chequered Plates |
| Surface Finishes | 2B, BA, No.1, No.4, 8K Mirror, Hairline, Satin, Polished |
| Density | ~7.8 g/cm³ |
| Tensile Strength |
Duplex: 620 MPa min Super Duplex: 800 MPa min |
| Yield Strength (0.2% offset) |
Duplex: 450 MPa min Super Duplex: 550 MPa min |
| Elongation | 25–30% |
| Corrosion Resistance | Excellent resistance to pitting, crevice, and chloride stress corrosion cracking |
| Applications |
Oil & Gas Offshore Platforms Petrochemical Processing Desalination Plants Marine Engineering Pulp & Paper Industry Chemical Tankers Heat Exchangers |
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