Neil Metals, located in Kolkata, India, stands out as a top manufacturer and supplier of high-quality Duplex Steel Round Bars. Known for their precision engineering and dedication to excellence, Neil Metals provides products that adhere to international standards, catering to a wide range of industrial needs. Their Duplex Steel Round Bars are celebrated for their exceptional strength, resistance to corrosion, and long-lasting durability. By employing cutting-edge manufacturing techniques and rigorous quality control, Neil Metals guarantees consistent performance even in the most demanding applications. Their commitment to customer satisfaction and timely delivery has made them a reliable partner for clients both in India and around the globe.
Duplex Steel Round Bars are crafted from a well-balanced blend of austenite and ferrite, typically featuring 22–25% chromium, 4–7% nickel, and 3–5% molybdenum, along with nitrogen to enhance strength. These bars boast impressive mechanical properties, including high tensile strength (around 620 MPa), good yield strength (approximately 450 MPa), and remarkable impact toughness, even in low temperatures. The dual-phase microstructure offers outstanding resistance to stress corrosion cracking, pitting, and crevice corrosion. These qualities make Duplex Steel Round Bars perfect for challenging environments that demand both strength and corrosion resistance.
Standards : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 10 mm To 100 mm Dia in
Length : 100 mm TO 6000 mm Length.
Specifications : ASTM A276, A479 / ASME SA276, SA479
Form : Round
Finish : Bright, Polish & Black
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
| S31803 / S32205 | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
To select the right Duplex Steel Round Bars, consider factors like corrosion resistance, mechanical strength, temperature conditions, and the specific industry requirements. Consult material specifications and expert advice for optimal selection.
Common grades of Duplex Steel used in round bar manufacturing include 2205 (F51), 2507 (F53), and 2304, each offering varying levels of corrosion resistance, strength, and weldability for specific applications.
Yes, Duplex Steel Round Bars are fully recyclable. Their high-quality composition allows them to be reused in various industries without compromising performance or structural integrity.
Thanks to their excellent strength and corrosion resistance, Duplex Steel Round Bars are widely utilized across various industries. They are particularly common in the chemical and petrochemical sectors, where they are used for processing equipment, pressure vessels, and storage tanks. The oil and gas industry relies on these bars for subsea and offshore components, as they can endure harsh marine conditions. Additionally, they are employed in desalination plants, the paper and pulp industry, heat exchangers, and structural components in construction. Their durability and resistance to aggressive chemicals make them ideal for high-performance, long-lasting applications.
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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