With its main office in Kolkata, India, Neil Metals is a top producer and supplier of high-quality Super Duplex Steel Round Bars, serving a variety of industrial markets. Our Super Duplex round bars, which are made with the newest manufacturing techniques and adhere to international quality standards, are renowned for their exceptional tensile strength and resistance to corrosion. These bars are perfect for use in harsh settings where dependability and durability are essential, like the offshore and marine industries. Neil Metals provides unparalleled consistency and value to both domestic and international markets by prioritising quality, accuracy, and customer satisfaction.
About 24–26% chromium, 6–8% nickel, 3–5% molybdenum, and trace amounts of manganese and nitrogen are present in Super Duplex Steel Round Bars. Because of its special combination of ferritic and austenitic structures, this dual-phase alloy has remarkable strength and corrosion resistance. These round bars have exceptional resistance to stress corrosion cracking, pitting, and crevice corrosion, as well as high tensile strength (approximately 750–800 MPa) and yield strength exceeding 550 MPa. They are appropriate for demanding and high-pressure industrial applications because, in spite of their strength, they retain good weldability and impact toughness.
Specifications : ASTM A276, ASME SA276
Standard : ASTM, ASME
Size : 6 mm to 120 mm.
Length : 1 to 6 Meters, Custom Cut Lengths
Dimensions : EN, DIN, JIS, ASTM, BS, ASME, AISI
| 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 |
| 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 % |
Applications needing both corrosion resistance and mechanical strength are best suited for Super Duplex Steel Round Bars. These bars, which are frequently found in desalination plants, offshore oil rigs, subsea equipment, and marine hardware, function remarkably well in saltwater and chloride environments. They are used in heat exchangers, pressure vessels, flanges, and valves in the chemical and petrochemical industries. They are also appropriate for structural uses in the shipbuilding and construction industries due to their high strength-to-weight ratio. Super Duplex round bars are also utilised in pollution control devices, the pulp and paper industry, and other high-demand settings where dependability is essential.
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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