Premium-grade Super Duplex Steel Flat Bars for high-performance industrial applications are available from Neil Metals, a reputable manufacturer and supplier with headquarters in Kolkata, India. These flat bars, which are made with cutting-edge technology and strict quality control procedures, are renowned for their remarkable mechanical strength, resistance to corrosion, and longevity. Super Duplex flat bars are offered by Neil Metals in a range of sizes to satisfy specific needs in the petrochemical, construction, oil and gas and marine industries. Neil Metals remains a reputable brand in the domestic and international stainless steel product markets thanks to its dedication to quality, prompt delivery, and customer satisfaction.
About 24–26% chromium, 6–8% nickel, and 3–5% molybdenum make up Super Duplex Steel Flat Bars. Nitrogen and manganese are added to increase strength and resistance to corrosion. This two-phase alloy offers remarkable mechanical properties by combining austenitic and ferritic microstructures. These include a yield strength of over 550 MPa and a high tensile strength of approximately 750–800 MPa, which is almost twice as high as that of traditional austenitic stainless steels. They are perfect for harsh and corrosive environments because they have good weldability, impact toughness, and exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking.
| Material | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| Super Duplex Steel | 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 3.00 – 5.00 | 6.00 – 8.00 | 0.24 – 0.32 | 58.095 min |
| Tensile Strength | 90,000 psi |
| Yield Strength | 50,000 psi |
| Elongation In 2” | 20% |
Reduction of Area | 30% |
Brlnell Hardness | 180-220 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
Super Duplex Steel Flat Bars are frequently utilised in applications that call for exceptional strength and resistance to corrosion. They are perfect for fabrication, support systems, and structural frameworks in desalination plants, offshore drilling rigs, and maritime settings. These flat bars are utilised in storage tanks, heat exchangers, pressure vessels, and pump parts in the petrochemical and chemical industries. They are also appropriate for coastal construction and water treatment facilities due to their exceptional performance in chloride-rich environments. They are also utilised in heavy machinery, aerospace components, and pulp and paper processing, where strength and long-term durability are crucial.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Neil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kolkata, India
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