Nestled in Manama’s bustling industrial heart, Junaid Metals has built a reputation for delivering exceptional materials you can count on. Our Duplex Steel Hollow Bar is a prime example of this commitment, offering a perfect blend of strength and practicality for the most demanding projects. We understand that the success of your work depends on quality foundations, which is why we ensure every bar meets the highest standards, providing a reliable and durable solution for engineers and fabricators across the region.
The strength of Duplex Steel lies in its unique composition, a carefully balanced microstructure of austenite and ferrite. This gives the hollow bar an impressive combination of high tensile strength and excellent resistance to corrosion, particularly against stress corrosion cracking. It stands up remarkably well to a wide range of chemicals, including chlorides, making it far more robust than standard stainless steels while maintaining good weldability and formability for fabrication.
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 : Hollow
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 % |
Yes, Duplex Steel Hollow Bars can be recycled after use. Their high metal content makes them suitable for reuse in various industrial processes, promoting sustainability and resource efficiency.
Yes, Duplex Steel Hollow Bars are suitable for cryogenic applications due to their excellent toughness, strength, and resistance to brittle fracture at extremely low temperatures.
Yes, Duplex Steel Hollow Bars can be used for underground applications due to their high corrosion resistance, strength, and durability, even in harsh and moisture-prone environments.
This versatile profile finds its purpose in challenging environments where failure is not an option. You’ll commonly find Duplex Steel Hollow Bars forming the backbone of critical offshore oil and gas platforms, within demanding chemical processing plants, and in desalination units where saltwater is relentless. Its hollow design is ideal for constructing high-strength structural components, fluid-carrying manifolds, and mechanical parts that must perform flawlessly under immense pressure and in corrosive conditions, ensuring long-term reliability and safety.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Junaid Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Manama, Bahrain
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