Neil Metals, a reputable manufacturer and supplier located in Kolkata, India, specializes in top-notch Duplex Steel Flat Bars. Renowned for their exceptional strength and resistance to corrosion, our Duplex Steel Flat Bars are crafted using cutting-edge manufacturing techniques and rigorous quality control standards. We proudly serve both local and international markets, catering to a variety of industries that need reliable and durable steel components. With a strong emphasis on customer satisfaction and timely deliveries, Neil Metals has built a solid reputation for excellence in providing Duplex Steel Flat Bars that are customized to meet the unique needs of different industrial applications.
These Duplex Steel Flat Bars are primarily made from a well-balanced blend of austenitic and ferritic stainless steels, featuring about 22–25% chromium, 4–6% nickel, and 3% molybdenum, along with nitrogen to boost strength. They showcase impressive mechanical properties, including a high yield strength of around 450 MPa and a tensile strength that surpasses 620 MPa. Their superior resistance to stress corrosion cracking, pitting, and crevice corrosion makes them reliable even in the toughest environments. This unique combination of strength and corrosion resistance positions Duplex Steel Flat Bars as the go-to choice for demanding engineering and structural applications.
| Size | : | 10 mm To 100 mm Dia in 100 mm TO 6000 mm Length. |
| Standard | : | ASTM A276, A479 / ASME SA276, SA479, ASTM A789 / A789M & ASTM A928 / A928M |
| Grade | : | UNS NO. S 31803, S 32205, S 32550, S 32750, S 32760. |
| Finish | : | Bright, Polish & Black |
| End | : | Flat |
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 |
| Grade | Density | Melting point | Yield strength(0.2% offset) | Tensile strength | Elongation |
|---|---|---|---|---|---|
| S32750/S32760 | 7.8g/cm3 | 1350°C(2460°F) | PSi-80000, MPa-550 | PSi-116000, MPa-800 | 15% |
To maintain Duplex Steel Flat Bars, regularly clean them to remove debris, inspect for corrosion, and apply protective coatings if necessary. Ensure proper storage to prevent exposure to harsh chemicals or extreme conditions.
Yes, Duplex Steel Flat Bars are suitable for natural gas applications due to their excellent corrosion resistance and strength, making them ideal for pipelines and equipment exposed to natural gas environments.
Duplex Steel Flat Bars are partially magnetic due to their ferritic phase. While not as magnetic as pure ferritic steels, they may exhibit some magnetic properties, especially in certain conditions.
Duplex Steel Flat Bars find extensive use across various industries thanks to their remarkable strength and corrosion resistance. In the oil and gas sector, they are vital for structural components that face harsh conditions. The chemical and petrochemical industries rely on these bars for processing equipment and piping systems. They are also utilized in marine applications, desalination plants, and the pulp and paper industries, where resistance to chloride-induced corrosion is essential. Furthermore, these bars are employed in construction, bridge structures, and mechanical components where both high strength and durability are paramount.
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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