Chung Metal produces and distributes Super Duplex Steel S32750 Forgings in Da Nang, Vietnam. Renowned for their high corrosion resistance, high strength, and toughness, these forgings are suited for aggressive and high-pressure applications. Employing the latest forging technology, Chung Metal provides each product with accurate dimensions and excellent metallurgical quality. S32750 forgings possess excellent pitting, crevice corrosion, and stress cracking resistance, making them a first choice in chemical, offshore, and marine sectors. Chung Metal focuses on delivering reliable and high-performance forging solutions tailored to critical applications.
S32750 contains ~25% chromium, 7% nickel, 4% molybdenum, and nitrogen for enhanced corrosion resistance. It offers tensile strength of 800–1000 MPa, yield ≥550 MPa, and elongation around 25%. The duplex microstructure provides excellent toughness, strength, and corrosion protection in chloride-rich 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 |
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.
S32750 forgings are applied in desalination plants, offshore drilling systems, pumps, valves, and chemical processing units. They possess superior marine and acidic environment performance. Chung Metal’s S32750 forgings provide durability and strength over a long period of time in applications requiring resistance to high pressures and corrosion.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Da Nang, Vietnam
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