Neil Metals is a well-respected manufacturer and supplier of Super Duplex Steel S32750 Forgings, proudly based in Kolkata, India. We focus on crafting high-performance forged components that provide exceptional mechanical strength and corrosion resistance, particularly in tough environments. Our S32750 forgings, which include flanges, shafts, rings, and custom parts, are made in line with ASTM A182 standards and are designed for high-pressure and corrosive service conditions. With a strong commitment to precision and quality, Neil Metals caters to industries like oil & gas, chemical processing, marine, and offshore applications, delivering durable forging solutions that guarantee long-lasting reliability and safety.
Super Duplex Steel S32750 is a high-alloy duplex stainless steel that contains about 24–26% chromium, 6–8% nickel, 3–5% molybdenum, and 0.24% nitrogen. This alloy boasts an impressive blend of strength and corrosion resistance, particularly against pitting, crevice corrosion, and stress corrosion cracking. Typical mechanical properties include a tensile strength of around 800–1000 MPa, yield strength of 550 MPa, and elongation of 15–25%. The ferritic-austenitic microstructure of S32750 enhances its toughness and resistance to chloride-induced corrosion, making it perfect for harsh, saltwater, and chemically aggressive environments.
| 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 |
Super Duplex Steel S32750 Forgings are widely utilized in applications that require high mechanical strength, corrosion resistance, and reliability. These applications include subsea oil & gas equipment, chemical process vessels, heat exchangers, valves, pump components, and pressure-retaining parts in marine and offshore platforms. The alloy’s remarkable resistance to chloride stress corrosion cracking and localized corrosion makes it especially suitable for desalination plants, brine systems, and the paper and pulp industries. With excellent weldability and low thermal expansion, S32750 forgings provide a long service life and reduced maintenance even in the most challenging operational environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Neil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kolkata, India
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