Maduka Metals, a leading manufacturer and supplier located in Abuja, Nigeria, specializes in high-quality Super Duplex Steel S32750 Forgings. These products are designed to offer outstanding strength, corrosion resistance, and durability, even in the toughest environments. Each forging is crafted to meet international standards, guaranteeing reliable performance across various sectors, including industrial, marine, chemical, and petrochemical applications. Maduka Metals caters to a wide range of industries such as oil and gas, power generation, aerospace, and desalination, delivering cutting-edge stainless steel solutions. Thanks to advanced forging techniques and rigorous quality control, every S32750 Forging boasts exceptional mechanical properties, long-lasting stability, and resistance to pitting, stress corrosion, and chloride-induced cracking, making them perfect for critical high-performance uses.
Super Duplex Steel S32750 Forgings consist of about 25–26% chromium, 6–8% nickel, 3–5% molybdenum, along with trace amounts of nitrogen, manganese, and iron. This unique blend results in a remarkable combination of high tensile and yield strength, toughness, and excellent resistance to corrosion, including pitting and stress corrosion cracking. On the mechanical side, S32750 showcases a tensile strength ranging from 900 to 1100 MPa, a yield strength of 650 to 750 MPa, and hardness levels reaching up to 350 HB. Its impressive strength and corrosion resistance make it ideal for extreme conditions in industrial, marine, and chemical settings.
| 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. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S32750 | 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 % |
| STANDARD | WERKSTOFF NR. | UNS |
| Super Duplex S32750 | 1.4410 | S32750 |
Yes, S32750 super duplex steel forgings are ideal for offshore and marine applications due to their excellent corrosion resistance, high strength, and resistance to pitting, crevice corrosion, and stress corrosion cracking.
Super Duplex Steel S32750 forgings are compatible with welding processes like GTAW (TIG), SMAW (Stick), GMAW (MIG), and SAW, using matching filler metals to ensure corrosion resistance and strength.
Limitations of S32750 forgings include susceptibility to hydrogen embrittlement, limited high-temperature performance, potential for welding-induced phase imbalance, and careful heat treatment requirements to maintain corrosion resistance and mechanical properties.
Super Duplex Steel S32750 Forgings find extensive use in industries that demand materials with high strength, corrosion resistance, and durability. In the oil and gas sector, they are commonly used for valves, flanges, pumps, and piping systems that come into contact with chloride-rich environments. The chemical and petrochemical industries utilize them for reactors, heat exchangers, and storage tanks that handle aggressive chemicals. In marine applications, they are essential for offshore platforms, shipbuilding, and desalination plants. Furthermore, Super Duplex Steel S32750 Forgings are also well-suited for power generation, industrial machinery, and engineering applications where mechanical integrity is crucial.






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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