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Boikanyo Sheets and Plates stands out as a top-notch manufacturer and supplier of **Super Duplex Steel Sheets and Plates** in Cape Town, South Africa. We take pride in offering high-quality products that are built to withstand the toughest industrial environments. Renowned for their exceptional strength, corrosion resistance, and durability, our sheets and plates are specifically designed to thrive in harsh and aggressive conditions. At Boikanyo, we prioritize precision manufacturing and strictly adhere to international quality standards, ensuring a diverse range of sizes and finishes to meet your needs. These sheets and plates find extensive use in industries such as chemical processing, oil and gas, marine, desalination, and power generation.
Our **Super Duplex Steel Sheets and Plates** feature a well-balanced ferritic-austenitic stainless steel structure, containing around 22–25% chromium, 4–6% nickel, 3–5% molybdenum, and trace amounts of nitrogen. This unique composition grants them remarkable mechanical properties, including tensile strength reaching up to 850 MPa, outstanding toughness, and impressive fatigue resistance. The elevated levels of chromium, molybdenum, and nitrogen ensure exceptional protection against pitting, crevice corrosion, and stress corrosion cracking. These combined attributes of strength, durability, and corrosion resistance make our sheets and plates perfect for structural, industrial, and chemical applications in extreme environments.
| Specifications | ASTM A240 / ASME SA240, BS EN 10088-2, en 10028-7, IS 6911 |
| Dimensions | MSRR, AMS, BS, JIS, AISI, ASTM, GB, DIN, EN, etc |
| Size Range | Cold Rolled : 0.5-6.4 mm Hot Rolled : 3.0–10.0 mm |
| Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Thickness | 0.3 mm to 120 mm |
| International Standard of Sheets | ASTM A480 ASTM A959 ASME IID EN ISO 9445 EN ISO 18286 EN 10051 EN 10088-1 ISO 15510 |
| Tolerances (width / thickness | EN 10258/ DIN 59381 EN 10151 EN 10088 |
| Finish | 2B, 2D, BA NO (8), Cold rolled sheet (CR), Hot rolled plate (HR), SATIN (Met with Plastic Coated), No.1 finish hot rolled, 1D, 2B, No.4, BA, 8K, satin, mirror etc. |
| Hardness | Half Hard, Soft, Hard, Quarter Hard, Spring Hard |
| Form | Sheet, Plain Sheet, Flat Shim, Flat Sheet, Shim Sheet, Rolling Sheet, soft annealed, descaled, sheared, annealed |
| Value Added Service | Cladding, Heat Treatment, Annealed, Pickling, Polish, Rolling, Cutting, Bending, Forging, Minor Fabrication Etc. |
| Profiling | Plasma Plate Cutting Laser Plate Cutting Oxy-propane Flame Cutting |
| Element | C | Mn | Si | P | S | Cr | Ni | Mo | N | Fe |
| Super Duplex Steel Pipe Fittings | 0.030 max. | 2.00 max. | 1.00 max. | 0.030 max. | 0.020 max. | 21.0 – 23.0 | 4.50 – 6.50 | 2.50 – 3.50 | 0.08 – 0.20 | 63.54 min |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Super Duplex Steel Pipe Fittings | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Super Duplex Steel Sheets and Plates offer several key advantages, making them ideal for harsh environments. Their excellent corrosion resistance, including resistance to pitting, crevice, and stress corrosion cracking, ensures long-lasting performance in marine, offshore, and chemical processing industries. With a high strength-to-weight ratio, Super Duplex Steel is both strong and durable, providing reliable performance under high-pressure conditions. It also boasts superior weldability, making it easy to fabricate into complex structures. The material’s ability to perform well in extreme temperatures and aggressive chemicals makes it a top choice for critical applications.
Yes, we offer custom sizes for Super Duplex Steel Sheet and Plates to meet specific project needs. Our team at Boikanyo Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@aaronsheetsplates.com.
| STANDARD | UNS | WERKSTOFF NR. |
| Super Duplex 2507 | S32750 | 1.4410 |
| Sheet & Plate Surface finish | Gauge (in) | Width (max in) |
|---|---|---|
| 2B – Cold rolled, heat treated, pickled, skin passed Plate | 10–24 | 72* |
| 2D – Cold rolled, heat treated, pickled plate | 12–24 | 60 |
| BA Mexinox only | 18–28 | 48 |
| Polished Sheet (not brushed) | 11–24 | 60 |
| Temper rolled Sheet Mexinox only | 13–29 | 48 |
| Plate Thickness (mm) | Weight (kg/m) | kg/meter (width 1200mm) | kg/meter (width 1500mm) | kg/meter (width 1800mm) | kg/meter (width 2400mm) |
| 3 | 23.55 | 28.3 | 35.3 | 42.4 | 56.5 |
| 4 | 31.4 | 37.7 | 47.1 | 56.5 | 75.4 |
| 5 | 39.25 | 47.1 | 58.9 | 70.7 | 94.2 |
| 6 | 47.1 | 56.5 | 70.7 | 84.8 | 113 |
| 8 | 62.8 | 75.4 | 94.2 | 113 | 150.7 |
| 10 | 78.5 | 94 | 118 | 141 | 188 |
| 12 | 94.2 | 113 | 141 | 170 | 226 |
| 16 | 125.6 | 151 | 188 | 226 | 301 |
| 20 | 157 | 188 | 236 | 283 | 377 |
| 22 | 172.7 | 207 | 259 | 311 | 415 |
| 25 | 196.25 | 236 | 294 | 353 | 471 |
| 28 | 219.8 | 264 | 330 | 396 | 528 |
| 32 | 251.2 | 301 | 377 | 452 | 603 |
| 36 | 282.6 | 339 | 424 | 509 | 678 |
| 40 | 314 | 377 | 471 | 565 | 754 |
| 45 | 353.25 | 424 | 530 | 636 | 848 |
| 50 | 392.5 | 471 | 589 | 707 | 942 |
| 55 | 431.75 | 518 | 648 | 777 | 1036 |
| 60 | 471 | 565 | 707 | 848 | 1130 |
| 65 | 510 | 612 | 765 | 918 | 1224 |
| 70 | 549.5 | 659 | 824 | 989 | 1319 |
| 75 | 588.75 | 707 | 883 | 1060 | 1413 |
| 80 | 628 | 754 | 942 | 1130 | 1507 |
| 90 | 706.5 | 848 | 1060 | 1272 | 1696 |
| 100 | 785 | 942 | 1178 | 1413 | 1884 |
You’ll find **Super Duplex Steel Sheets and Plates** widely utilized in sectors that demand materials with high strength and corrosion resistance. In the chemical and petrochemical industries, they serve critical roles in reactors, heat exchangers, pressure vessels, and piping systems that come into contact with aggressive chemicals. The oil and gas sector relies on them for offshore platforms, subsea structures, and pipelines that operate under challenging marine conditions. They are also essential in marine applications like shipbuilding and desalination plants. Furthermore, these sheets and plates are valuable in power generation, pulp and paper production, and wastewater treatment processes.
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