Dhruv Metals offers strong and corrosion-resistant Duplex Steel Round Bars made from duplex grades like UNS S32205 and S31803. These bars, known for their dual-phase structure and high strength, are ideal for structural and mechanical applications in marine, chemical, and offshore industries. Our round bars meet ASTM A276 and other global standards, ensuring accurate dimensions, excellent surface quality, and consistent material properties.
Duplex Steel round bars consist of around 22% Chromium, 5% Nickel, 3% Molybdenum, and Nitrogen (0.14–0.20%). Their tensile strength is 620–750 MPa, yield strength is about 450 MPa, and elongation is roughly 25%. These bars resist chloride-induced corrosion, pitting, and stress corrosion cracking. Their combination of high strength and corrosion resistance enables lightweight designs and lasting durability in aggressive settings.
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.
Duplex Steel Round Bars are commonly used in shafts, pumps, fasteners, and valves across the chemical, marine, and oil and gas industries. They also apply to structural supports, bridge pins, and machinery parts that need high strength and corrosion resistance. In desalination plants and power generation, they are key materials for equipment exposed to chlorides and pressure. Dhruv Metals ensures that every round bar is made for strength, precision, and long-lasting reliability.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Dhruv Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hyderabad , India
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