Rupal Metals, located in Delhi, India, stands out as a top manufacturer and supplier of high-quality Duplex Steel Square Bars. These bars are celebrated for their corrosion resistance and high strength, making them a go-to choice across various industries. With a strong focus on precision engineering and adherence to international quality standards, Rupal Metals crafts Duplex Steel Square Bars that strike the perfect balance between mechanical strength and corrosion resistance. Trusted for their reliability in tough environments, these bars are produced using advanced techniques and a customer-centric approach, serving sectors like construction, petrochemicals, marine, and energy with durable duplex stainless steel products.
Duplex steel square bars are a unique class of stainless steel prized for their exceptional combination of strength and corrosion resistance. These bars are featured by a dual-phase microstructure. Comprising approximately equal parts of austenite and ferrite. Chemically, they normally consist of around 22-25% chromium, 5-7% nickel, 3-4% molybdenum and nitrogen, among other trace elements. Such composition provides duplex steel with enhanced mechanical properties. Among these include greater yield and tensile strength compared to conventional austenitic stainless steel. Not to mention the excellent resistance against pitting, crevice corrosion, and stress corrosion cracking. Especially in chloride-rich environments. This combination of attributes makes them well-suited for demanding applications across various industries.
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 : Square
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 % |
Duplex Steel Square Bars are generally not ideal for cryogenic applications. Their performance may deteriorate at extremely low temperatures, making materials like austenitic stainless steel more suitable for such conditions.
To choose the right Duplex Steel Square Bar, consider factors such as the required strength, corrosion resistance, temperature conditions, and industry-specific demands. Ensure compatibility with your application’s mechanical and environmental requirements.
Yes, Duplex Steel Square Bars require regular inspection, especially in harsh environments. Checking for signs of corrosion, wear, or structural integrity ensures they continue performing optimally in critical applications.
Duplex steel square bars known for their exceptional strength, corrosion resistance and weldability. Find in diverse applications. They are important in construction for structural supports in harsh environments. And in the oil and gas industry for platforms and pipelines. The chemical processing sector utilizes them for tanks and equipment handling corrosive substances. Marine engineering benefits from their anti-corrosive properties. In ship building and harbor structures. Main industries that heavily depends on duplex steel square bars include oil and gas, chemical processing, marine, and construction.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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