Nestled in the heart of Kinshasa, Sadiki Metals has built a strong reputation as a trusted partner for industry, providing robust and reliable materials tailored for demanding environments. We take pride in our specialized focus on the Duplex Steel Hollow Bar, a product engineered to offer exceptional strength and resilience. Understanding the unique challenges faced by local projects, we are committed to supplying a superior solution that stands up to the test, supporting the growth and durability of infrastructure and innovation across the Congo and beyond.
The strength of our Duplex Steel Hollow Bar comes from its unique composition, which beautifully marries the best qualities of austenitic and ferritic steels. This blend creates a material with an impressive yield strength and excellent resistance to stress corrosion cracking. It also holds up remarkably well against a wide range of corrosive threats, from chlorides to various acids. This combination means you get a hollow bar that is not only incredibly tough but also built for a long service life, even in the most aggressive conditions.
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.
The versatility of the Duplex Steel Hollow Bar makes it an ideal choice for numerous critical applications. You’ll find it at the core of robust structural components in construction, within high-pressure hydraulic systems, and forming the backbone of efficient heat exchangers. It’s particularly valued in the marine and offshore industries for its saltwater resistance, and in chemical processing plants where corrosion is a constant challenge. Essentially, wherever strength and durability are non-negotiable, this hollow bar provides a dependable and long-lasting solution.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Sadiki Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kinshasa, Congo
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