Sadiki Metals located in Kinshasa, Congo, is a major manufacturer and distributor of high-quality Duplex Steel Flat Bars. The company commits itself to providing products that are made of a perfect combination of strength, corrosion resistance, and durability, thus meeting the needs of the industrial application of various fields. Using modern production methods and rigorous quality control, Sadiki Metals is able to deliver uniform performance and high precision even in small batches. The company, with a firm resolve to excellence, innovation, and customer satisfaction, provides the marine, oil and gas, chemical process, and construction industry with dependable Duplex Steel Flat Bar products.
Compositions of Duplex Steel Flat Bars include around 22-25% chromium, 4-7% nickel, 2-3% molybdenum, and the balance of iron, with small amounts of nitrogen and manganese. The dual-phase composition offers the material a balance of ferritic and austenitic microstructures, which is reflected in tensile strength (around 620-880 MPa) and yield strength (approximately 450-620 MPa) values that are twice as high as those of regular stainless steel. In addition, duplex steel has excellent resistance to pitting, crevice and stress corrosion cracking, and it is characterized by high fatigue strength, good toughness and weldability even in harsh conditions.
| Size | : | 10 mm To 100 mm Dia in 100 mm TO 6000 mm Length. |
| Standard | : | ASTM A276, A479 / ASME SA276, SA479, ASTM A789 / A789M & ASTM A928 / A928M |
| Grade | : | UNS NO. S 31803, S 32205, S 32550, S 32750, S 32760. |
| Finish | : | Bright, Polish & Black |
| End | : | Flat |
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 |
| Grade | Density | Melting point | Yield strength(0.2% offset) | Tensile strength | Elongation |
|---|---|---|---|---|---|
| S32750/S32760 | 7.8g/cm3 | 1350°C(2460°F) | PSi-80000, MPa-550 | PSi-116000, MPa-800 | 15% |
To maintain Duplex Steel Flat Bars, regularly clean them to remove debris, inspect for corrosion, and apply protective coatings if necessary. Ensure proper storage to prevent exposure to harsh chemicals or extreme conditions.
Yes, Duplex Steel Flat Bars are suitable for natural gas applications due to their excellent corrosion resistance and strength, making them ideal for pipelines and equipment exposed to natural gas environments.
Duplex Steel Flat Bars are partially magnetic due to their ferritic phase. While not as magnetic as pure ferritic steels, they may exhibit some magnetic properties, especially in certain conditions.
Duplex Steel Flat Bars are one of the top-notch materials featured in the industrial sector which are subjected to extreme situations requiring high strength and superior corrosion resistance. Firstly, they can be employed for the structural and fabrication works in marine environments, offshore platforms, desalination plants, and chemical processing industries. Moreover, these bars are employed in the fabrication of pressure vessels, heat exchangers, flanges, valves, and paper mill equipment. In the area of construction, they are involved in the architectural framework and reinforcement where the requirements of both durability and aesthetic finishing are necessary. Being a combination of toughness, strength, and corrosion resistance, they have become an absolute necessity in the case of harsh and high-performance operating conditions.
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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