Dhruv Metals is a top manufacturer and supplier of Duplex Steel Bars and Rods in Hyderabad, India. These bars are made from strong duplex stainless steels like UNS S31803 and S32205. They provide a good balance of austenitic and ferritic phases. Known for their high strength and excellent corrosion resistance, especially in chloride-rich settings, Duplex Steel Bars and Rods are ideal for marine, offshore, and chemical processing industries. Manufactured to ASTM A276 and A479 standards, Dhruv Metals ensures tight dimensional tolerances, great surface finish, and reliable mechanical performance, making them a solid choice for demanding structural and process applications.
Duplex Steel Bars and Rods contain about 22% chromium, 5–6% nickel, 3% molybdenum, and nitrogen to boost resistance to pitting and crevice corrosion. They feature a tensile strength of 620–800 MPa and yield strength of 450–550 MPa, with an elongation of around 25–30%. Their duplex microstructure enhances resistance to stress corrosion cracking and toughness. These materials maintain strong mechanical strength even at sub-zero temperatures, making them suitable for cryogenic and high-temperature services. They also have greater fatigue resistance and hardness compared to austenitic grades, providing improved performance in high-stress environments.
| 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 are commonly used in industries like oil and gas, petrochemical, marine, pulp and paper, and desalination. Typical applications include shafts, fasteners, flanges, valves, marine hardware, and pressure vessels. Their resistance to pitting, crevice corrosion, and chloride stress corrosion makes them ideal for heat exchangers, offshore platforms, and seawater systems. In construction, they are used for load-bearing structures that require high strength and durability. Duplex rods also find applications in chemical plants dealing with acidic and corrosive media. Dhruv Metals guarantees these bars will last and perform well in tough and corrosive conditions.
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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