Home > Duplex Steel > Duplex Steel Sheet and Plates
At Themban Nickel Alloys, based in Cape Town , Cape Town, we specialize in providing high-quality duplex steel sheets and plates. Renowned as a leading manufacturer and distributor, we offer products that combine the superior strength and corrosion resistance of duplex steel. Our extensive inventory is ideal for a wide range of industrial applications, ensuring durability and reliability in the most demanding environments. With a commitment to excellence and customer satisfaction, Themban Nickel Alloys delivers top-notch duplex steel solutions tailored to meet your specific needs. Trust us for the best in material performance and service.
| Specifications | ASTM A240 / ASME SA 240 |
| Duplex Steel Plate Grades | 2205, 2507 |
| Size | 1000 mm x 2000 mm, 1220 mm x 2440 mm, 1500 mm x 3000 mm, 2000 mm x 2000 mm, 2000 mm x 4000 mm |
| Thickness | 0.1mm to 12 mm Thk |
| Width | 10-2500mm |
| Length | 2m,2.44m, 3m as per requirement |
| Form | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Strip, Flats, Blank (Circle), Ring (Flange) |
| Finish | Cold rolled sheet (CR), Hot rolled plate (HR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| MN | C | SI | S | P | CR | NI | MO | N |
|---|---|---|---|---|---|---|---|---|
| 2.0 max | 0.03 max | 1.0 max | 0.02 max | 0.03 max | min: 21.0 max: 23.0 | min: 4.5 max: 6.5 | min: 2.5 max: 3.5 | min: 0.08 max: 0.20 |
The composition of Themba Nickel Alloys’ Duplex Steel Sheets and Plates is impressive, featuring iron (the balance), chromium (21%), nickel (5–6.5%), molybdenum (2.5–3%), along with trace amounts of nitrogen, manganese, and silicon. This unique mix gives them remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in environments rich in chlorides and oxidizing agents. These sheets and plates boast excellent mechanical properties, with a tensile strength ranging from about 620 to 880 MPa and a yield strength between 450 and 620 MPa. They also offer high toughness, ductility, and fatigue resistance, ensuring they hold up under extreme temperatures, pressures, and chemical exposure.
Contact us to get a quick quote for your requirement.
You’ll find Duplex Steel Sheets and Plates being used across various industries that demand materials that are both corrosion-resistant and strong. They’re perfect for applications like chemical processing equipment, oil and gas platforms, desalination plants, heat exchangers, marine and offshore structures, and power generation systems. These sheets and plates are built to maintain their structural integrity, resist scaling and deformation, and provide long-lasting durability even in aggressive environments. With Themba Nickel Alloys’ Duplex Steel Sheets and Plates, you’re guaranteed safe, high-performance, and reliable solutions, making them a go-to choice for critical industrial applications worldwide.
