Maduka Metals, a top-notch manufacturer and supplier located in Abuja, Nigeria, specializes in high-quality Super Duplex Steel Forgings that are designed for outstanding strength, corrosion resistance, and durability. These forgings are crafted to meet international standards, guaranteeing reliable performance even in the toughest industrial and marine settings. Maduka Metals caters to a variety of sectors, including oil and gas, chemical processing, petrochemical, and power generation, offering cutting-edge steel solutions. Thanks to precise forging techniques and rigorous quality control, each Super Duplex Steel Forging boasts excellent mechanical properties, long-lasting stability, and resistance to pitting, stress corrosion, and chloride-induced cracking, making them perfect for critical high-performance applications in aggressive and corrosive environments.
Super Duplex Steel Forgings are made from a well-balanced blend of about 22–25% chromium, 5–7% nickel, 3–5% molybdenum, along with trace amounts of nitrogen, manganese, and iron. This unique composition results in a fantastic mix of high strength, toughness, and exceptional corrosion resistance. On the mechanical side, super duplex steel shows a tensile strength ranging from 800–1000 MPa, yield strength between 550–750 MPa, and hardness up to 350 HB. It provides remarkable resistance to pitting, stress corrosion cracking, and general corrosion, making it an ideal choice for harsh chemical and marine environments where reliability and durability are essential.
| Standard | ASTM A182, ASME SA182 |
| Specification | DIN, ASTM, BS and all International Standards |
| Flat bar blocks | up to 27″ width and 15,000 lbs. |
| Cylinders and sleeves | up to 50″ maximum O.D. and 65″ maximum length |
| Discs and hubs | up to 50″ diameter and 20,000 lbs. |
| Rolled, hand forged or mandrel forged rings | up to 84″ maximum O.D. and 40″ maximum length |
| Rounds, shafts and step shafts | up to 144″ maximum length and 20,000 lbs. |
| Forging Types | Impression Die Forging, Open Die Forging, Seamless Rolled Forging, Hot Forging, Cold Forging, Open die hammer forging, Impression die drop forging, Closed Die Forging, Press Forging, Upset Forging, Compression Forging, Swaging, Rotary Forging, Roll forging. |
To verify the quality of Super Duplex Steel forgings, check for certifications like ASTM, ASME, or ISO standards. Conduct tests such as mechanical property testing, chemical composition analysis, and non-destructive testing (NDT) like ultrasonic or magnetic particle inspections.
Compatible welding processes for Super Duplex Steel forgings include Tungsten Inert Gas (TIG), Metal Inert Gas (MIG), Shielded Metal Arc Welding (SMAW), and Submerged Arc Welding (SAW), using appropriate filler materials.
Super Duplex Steel forgings are governed by standards such as ASTM A182, ASTM A240, ASME SA-182, ASME SA-240, and EN 10088-3, which define material properties, chemical composition, and mechanical requirements.
Super Duplex Steel Forgings find their place in industries that require high-strength, corrosion-resistant materials capable of enduring extreme conditions. In the oil and gas sector, they are used for valves, flanges, pumps, and pressure vessels that come into contact with chloride-rich media. The chemical and petrochemical industries utilize them for reactors, heat exchangers, and piping systems that handle aggressive chemicals. In marine applications, super duplex forgings are perfect for offshore platforms, desalination plants, and components used in shipbuilding.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Maduka Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Abuja, Nigeria
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