Phehlukwayo Metals in Cape Town, South Africa, are the leading manufacturing and supplying organizations, offering excellent performance in its high-performance metals. These organizations manufacture and sell forgings such as Super Duplex Steel S32750 Forgings and provide services across industries such as oil and gas, marine, chemical processing, and petrochemicals and always emphasize their commitment to precision and quality. The company’s forged Super Duplex Steel S32750 provides utmost strength, outstanding corrosion resistance as well as very high durability for operation in demanding equipment such as high-pressure vessels and pumps, various valves, or heat exchangers. Phehlukwayo Metals focuses on setting the highest bar in the market, ensuring stable and long life solutions for tough environments.
Super Duplex Steel S32750 forgings, is a very high-performance alloy possessing primarily 25% of its composition with 7% nickel and 4% molybdenum, in addition to small quantities of manganese, silicon, nitrogen, and carbon. The particular composition helps enhance the steel’s resistance against corrosion, especially pitting and crevice corrosion. The mechanical properties of this material also are excellent with a yield strength of 550 MPa, tensile strength of 800-1000 MPa, and elongation of 25%. With its high chromium content, it resists highly corrosive environments; molybdenum adds resistance to chloride-induced corrosion. Such applications include those found in extremely aggressive environments offshore and chemical processing.
| 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.
These high-value Super Duplex Steel S32750 forgings have extraordinary corrosion resistance along with high strength and durability and are suitable for severe operating environments. These forgings are frequently used in applications related to the oil and gas industry, chemical processing, marine, pumps, valves, flanges, heat exchangers, and pressure vessels. High resistance to pitting, crevice corrosion, and stress corrosion cracking gives excellent reliability in critical operating conditions. S32750 forgings also find their applications in offshore rigs, desalination plants, and petrochemical equipment where long-term performance and, therefore, safety require both high mechanical strength along with resistance to corrosion.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Phehlukwayo Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Cape Town, South Africa
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