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Super Duplex Steel Coil/Slitting Coil is a top-notch product celebrated for its remarkable strength, resistance to corrosion, and long-lasting durability, making it perfect for tough and demanding environments. With its unique dual-phase microstructure of austenite and ferrite, these coils show outstanding resistance to pitting, crevice corrosion, and chloride stress corrosion cracking. They come in a variety of thicknesses, widths, and finishes, and are crafted with precision to meet international standards, ensuring they deliver reliability and performance in critical industrial applications.
The makeup of Super Duplex Steel Coil/Slitting Coil features chromium (24–26%), nickel (6–8%), molybdenum (3–5%), nitrogen, and manganese, which together create an impressive balance of strength and corrosion resistance. These coils boast a high tensile strength of around 750–850 MPa, along with impressive yield strength and excellent impact toughness, even in freezing or elevated temperatures. Their metallurgical structure guarantees superior hardness, weldability, and dimensional stability, making them a go-to choice over standard stainless steels in extreme operating conditions.
| Standards | ASTM A240 / ASME SA240 |
| Thickness | 0.2mm – 5.0mm |
| Width | 3.2mm – 1500mm & bove |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, AS PER CUSTOMER’S REQUIREMENT |
| Hardness | Annealed – pickled (soft), Soft, Hard, Half Hard, Quarter Hard, Spring Hard , 1/4 hard, Yi hard,3/4 hard , full hard , extra hard |
| Test Certificate | Chemical test, Fitting test, Alloy test, Radiography test, Macro and micro-test, Hydrostatic test, Impact test. |
| Finish | Cold rolled stainless steel strips annealed & pickled 2 B Cold rolled stainless steel strips annealed & skin passed 2R Work harden for specific hardness BA/BE/ Matt Finish Cold rolled stainless steel strips |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| Thickness (mm) | Width (mm) | Length (m) |
| 0.5 | 1000 | 250 |
| 0.8 | 1250 | 300 |
| 1 | 1500 | 350 |
| 1.2 | 1750 | 400 |
| 1.5 | 2000 | 450 |
| 2 | 1000 | 500 |
| 2.5 | 1250 | 550 |
| 3 | 1500 | 600 |
| 3.5 | 1750 | 650 |
| 4 | 2000 | 700 |
| 4.5 | 1000 | 750 |
| 5 | 1250 | 800 |
| 6 | 1500 | 850 |
| 7 | 1750 | 900 |
| 8 | 2000 | 950 |
| 9 | 1000 | 1000 |
| 10 | 1250 | 1050 |
| 11 | 1500 | 1100 |
| 12 | 1750 | 1150 |
| 15 | 2000 | 1200 |
| Thick. on base (millimeter) | Unit Wght / Coil (kilogram) |
|---|---|
| 3000 x1000 x3.0 | 78.0 |
| 3000 x1250 x4.5 | 143.0 |
| 3000 x1250 x6.0 | 180.0 |
| 3000 x1250 x8.0 | 210.0 |
Super Duplex Steel Coil/Slitting Coil finds its place in various industries, including oil and gas processing, marine engineering, chemical plants, desalination units, and offshore structures. They’re also used in making heat exchangers, pressure vessels, structural components, pipelines, and precision-engineered products that require exceptional strength and corrosion resistance. Their ability to endure highly corrosive environments, combined with a long service life and low maintenance needs, makes them a cost-effective and reliable option for heavy-duty applications across a range of industries.
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