Neil Metals, located in Kolkata, India, has earned a solid reputation as a reliable manufacturer and supplier of top-notch Duplex Steel Bars and Rods. The company is well-regarded for its precision engineering and commitment to international quality standards, delivering products that boast strength, corrosion resistance, and long-lasting durability. With a robust distribution network and a strong emphasis on customer satisfaction, Neil Metals caters to a variety of industries, including construction, petrochemicals, and marine engineering. Their Duplex Steel Bars and Rods are produced using cutting-edge technology and undergo rigorous testing to ensure they can be trusted in even the toughest environments, making them a go-to choice for clients both in India and overseas.
These Duplex Steel Bars and Rods are made from a carefully balanced blend of austenite and ferrite microstructures, typically featuring 22–25% chromium, 4–7% nickel, and 3% molybdenum, along with nitrogen. This combination significantly boosts their strength and resistance to corrosion. On the mechanical side, Duplex Steel stands out with a yield strength that’s nearly double that of standard austenitic stainless steels. They also showcase impressive toughness, good fatigue strength, and a high resistance to stress corrosion cracking. This unique mix of physical and mechanical properties makes them perfect for high-performance applications in challenging environments and for structural components that demand both strength and resilience.
| Grade | C | Mn | S | Cr | P | Si | Fe | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|---|
| S31803 | 0.030 | 2.00 | 0.020 | 22.0 – 23.0 | 0.030 | 1.00 | 63.72 min | 3.0 – 3.5 | 6.50 | 0.20 |
| S32205 | 2.50 – 3.50 | 0.8 |
| Grade | Hardness | Tensile Strength | Melting Point | Yield Strength | Density | Elongation |
|---|---|---|---|---|---|---|
| S31803 | 255 | 800 Mpa | 1350 °C (2460 °F) | 450 Mpa | 7.8 g/cm3 | 35 |
| S32205 |
| EN/ DIN/ WNR | 10088-3 |
|---|---|
| AFNOR | Z2CND22.05Az |
| BS (CAST) | 332C15 |
| UNS |
|
| WNR | 1.4462 |
| BS (WROUGHT) | 318S13 |
Yes, Duplex Steel Bars offer excellent corrosion resistance, particularly against stress corrosion cracking, pitting, and crevice corrosion. Their dual-phase microstructure enhances their resistance in harsh environments.
Duplex steel bars perform well in high-temperature environments due to their excellent strength and resistance to oxidation and scaling. Their dual-phase microstructure enhances thermal stability and durability under heat stress.
Yes, duplex steel rods can be customized in size and length to meet specific application requirements. They can be tailored to various dimensions and tolerances for different industries.
Duplex Steel Bars and Rods find their place in industries where high strength and corrosion resistance are non-negotiable. You’ll often see them in offshore oil rigs, chemical processing equipment, marine components, heat exchangers, and desalination plants. They’re also utilized in structural frameworks for bridges, pressure vessels, and storage tanks, thanks to their excellent weldability and durability. In the pulp and paper industry, these bars and rods can handle harsh chemicals, while in the food and beverage sector, their hygienic and non-reactive properties ensure safe processing. Their versatility truly makes them an ideal choice for a wide range of critical engineering 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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