Sadiki Metals situated in Kinshasa, Congo, is a reliable creator and a dealer of high-quality Duplex Steel Bright Bars. The corporation has been the source of the products that are a perfect combination of the superior strength, the long life, and the corrosion resistance, which are the essential features for the global industries requiring heavy use. With modern-day plants and very strict quality standards, Sadiki Metals guarantees the product to be of the right size and fitting, the excellent surface finish, and the uniform mechanical properties. Conscious of the future and the customer’s wants, the company offers products that are the reliable and accurate solutions to the diversification of the sectors which may be the marine, petrochemical, construction, and power-generating ones.
Duplex Steel Bright Bars consist of around 22–25% chromium, 4–7% nickel, 2–3% molybdenum, with the remainder being iron, and small amounts of nitrogen and manganese. Its dual-phase microstructure merges the characteristics of both ferritic and austenitic stainless steels, thus resulting in a high tensile strength (620–880 MPa) as well as yield strength (450–620 MPa). Besides the high resistance to stress corrosion, pitting, and crevice attack, the bars also have good impact resistance, fatigue strength, and can be welded, which is why they are widely used in high-performance engineering environments.
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 : Bright
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 Bright Bars are suitable for natural gas applications due to their excellent corrosion resistance, high strength, and durability, making them ideal for pipelines and gas processing systems.
Yes, Duplex Steel Bright Bars are suitable for hygienic and sanitary applications due to their corrosion resistance, cleanability, and ability to withstand harsh environments, making them ideal for food and pharmaceutical industries.
Duplex Steel Bright Bars are generally resistant to galvanic corrosion due to their alloy composition, which combines both austenitic and ferritic structures. However, in certain conditions, if coupled with more reactive metals, they can be susceptible to galvanic corrosion.
Duplex Steel Bright Bars find application in sectors that are mechanically demanding and require highly corrosion-resistant materials. The manufacture of shafts, fasteners, valves, pumps, and marine hardware which are subjected to corrosive or chloride-rich environments is where these bars are utilized. As for chemical processing and petrochemical industries, the bars are in heat exchangers, pressure vessels, and reactor components. Sectors of construction and architecture employ them with both aesthetic and structural purposes. The good finishing, the precision in size, and the high durability make Duplex Steel Bright Bars a perfect choice for precise engineering as well as critical industrial assemblies all over the world.






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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