Rupal Metals, a leading Delhi-based manufacturer and supplier, is a specialist in high-performance metal products such as Super Duplex Steel S32750 Forgings. Focused on quality and precision engineering, Rupal Metals supplies strong forgings that meet the stringent demands of industrial applications. Super Duplex Steel S32750 is recognized for its superior strength, corrosion resistance, and long life. Rupal Metals assures each forging to international standards, catering to a broad cross-section of industries including oil & gas, chemical processing, marine, and power generation. Reliable and innovative in its approach, Rupal Metals is a pioneer in metal forging solutions in India.
Super Duplex Steel S32750 Forgings consist of an evenly balanced composition of chromium (24–26%), nickel (6–8%), molybdenum (3–5%), nitrogen, and traces of manganese, silicon, and carbon. This alloy provides superior corrosion resistance, particularly in chloride-containing environments. Mechanically, it has tensile strength of approximately 800 MPa and yield strength of 550 MPa with superior impact toughness as well as fatigue strength. The strength of ferritic steel is combined with the corrosion resistance of austenitic stainless steel in this alloy, making it suitable for high-stress as well as corrosive conditions.
| 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 are widely applied in applications where high mechanical strength and corrosion resistance play a key role. Examples include offshore oil and gas platforms, subsea hardware, heat exchangers, pressure vessels, and chemical process systems. They are also important in seawater desalination plants, pulp and paper industries, and marine engineering applications. The forgings endure severe environmental conditions and corrosive media and are therefore a first choice for structural components in high-temperature and pressure. Their strength and longevity guarantee minimum maintenance and extended service life, reducing maintenance costs substantially in vital infrastructure and industrial applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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