Nestled in the heart of Kinshasa, Sadiki Metals has built a strong reputation as a trusted manufacturer and supplier, deeply understanding the demanding requirements of local industry. We take pride in producing our Super Duplex Steel Hollow Bar, a material engineered to excel where others fall short. This isn’t just another piece of stock; it’s a robust solution crafted to withstand the most aggressive environments, offering our clients in Congo and beyond a reliable foundation for their most critical projects, combining exceptional strength with superior corrosion resistance right from our local workshop.
The strength of our Super Duplex Steel Hollow Bar comes from a carefully balanced composition, rich with chromium, nickel, molybdenum, and nitrogen. This specific blend gives the material its signature dual-phase microstructure, which translates into outstanding mechanical properties. You can count on it for a remarkably high tensile strength and excellent yield strength, all while maintaining good ductility. It also possesses impressive impact toughness, meaning it can handle heavy loads and resist shock, making it a fundamentally tough and dependable choice for structural components.
Specifications : ASTM A276, ASME SA276
Standard : ASTM, ASME
Size : 6 mm to 120 mm.
Length : 1 to 6 Meters, Custom Cut Lengths
Dimensions : EN, DIN, JIS, ASTM, BS, ASME, AISI
| Material | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| Super Duplex Steel | 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 3.00 – 5.00 | 6.00 – 8.00 | 0.24 – 0.32 | 58.095 min |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
Yes, Super Duplex Steel Hollow Bars can withstand high temperatures due to their excellent strength and corrosion resistance. They are suitable for applications in environments up to around 300°C (572°F), depending on the specific alloy.
Super Duplex Steel Hollow Bars and Rods are manufactured through hot or cold working processes, including extrusion and forging, followed by heat treatment, cold drawing, and precision machining for enhanced strength and corrosion resistance.
Super Duplex Steel Hollow Bars have excellent natural corrosion resistance due to their high chromium and molybdenum content, making additional protective coatings generally unnecessary. However, in highly aggressive environments, coatings may offer extra protection.
The unique properties of this hollow bar make it perfectly suited for challenging applications, particularly where corrosion is a major concern. You’ll find it invaluable in the construction of high-pressure piping systems for the oil and gas sector, within demanding chemical processing equipment, and for critical components in desalination plants. Its high strength-to-weight ratio also makes it an excellent choice for structural frameworks in marine environments, architectural features, and the shafts for large pumps and valves, offering long-lasting performance and significantly reducing maintenance needs over time.
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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