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Duplex Steel forgings are robust, corrosion-resistant components crafted from duplex stainless steel, which cleverly blends austenitic and ferritic microstructures. These forgings boast impressive mechanical strength, exceptional toughness, and remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking. Thanks to their unique dual-phase structure, they can handle high pressure, extreme temperatures, and harsh chemical environments, making them perfect for critical applications in industries like oil and gas, petrochemical, marine, and power generation.
Typically, the makeup of Duplex Steel forgings includes 22–25% chromium, 4–7% nickel, 2–4% molybdenum, and nitrogen, all of which boost both mechanical strength and corrosion resistance. They deliver a tensile strength of about 620–850 MPa and a yield strength of around 450–550 MPa. The well-balanced microstructure ensures excellent ductility, impact toughness, and resistance to intergranular corrosion, making them a dependable choice for long-term use in challenging conditions.
| Specifications | ASTM A182, ASME SA182 |
|---|---|
| Standard | 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. |
At Themban Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Forgings in Cape Town , South Africa, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Cape Town, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
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Duplex Steel forgings are commonly used to create flanges, fittings, valves, pumps, and essential pipeline components. Their blend of high strength, corrosion resistance, and durability guarantees secure and reliable connections, minimizes maintenance, and extends service life in both industrial and marine settings. These forgings are especially well-suited for applications that come into contact with seawater, acids, and other aggressive substances.