Home > Super Duplex Steel > Super Duplex Steel Forgings
Themban Nickel Alloys is a leading manufacturer and supplier of Super Duplex Steel Forgings in Cape Town , South Africa. Our Super Duplex Steel Forgings are engineered to provide exceptional strength and durability, making them ideal for high-pressure applications in harsh environments. With excellent resistance to corrosion, pitting, stress corrosion cracking, these forgings are perfect for use in offshore oil and gas platforms, chemical process plants, and marine applications Dedicated to high performance, Themban Nickel Alloy ensures every forging meets strict international standards, reliability For long lasting performance Trust us with your Super Duplex Steel Forgings needs, and use our expertise in providing superior solutions for engineering in the important applications.
| 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. |
| Element | Cr | Ni | Mn | Si | P | S | C | N | Mo | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| MIN | 22.0 | 4.5 | – | – | – | – | – | 0.1 | 3.0 | – |
| MAX | 23.0 | 6.5 | 2.0 | 1.0 | 0.03 | 0.02 | 0.03 | 0.2 | 3.5 | bal |
| 0.2% Yield Strength, ksi | 65 min |
| Tensile Strength, ksi | 90 min |
| Elongation, % | 25 min |
| Hardness [HRC] | 293 max |
The Super Duplex Steel Forgings from Themba Nickel Alloys are crafted from a balanced mix of austenite and ferrite, typically in a 50/50 ratio, which grants them remarkable strength and corrosion resistance. These forgings are rich in chromium (24–26%), nickel (6–8%), and molybdenum (3–5%), providing exceptional protection against pitting, crevice corrosion, and stress corrosion cracking. They showcase impressive yield strength (550–650 MPa) and tensile strength (850–950 MPa), all while maintaining toughness and resistance to fatigue. This unique combination of mechanical properties and corrosion resistance guarantees dependable performance even in the harshest industrial conditions.
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Super Duplex Steel Forgings find their place in a variety of applications, including chemical and petrochemical plants, offshore platforms, pressure vessels, heat exchangers, and pipelines that deal with aggressive media. They are also ideal for use in desalination plants, the pulp and paper industry, and marine engineering projects where high strength and corrosion resistance are essential. With Themba Nickel Alloys’ Super Duplex Steel Forgings, you can count on long-lasting reliability, durability, and safety in demanding environments, making them a go-to choice for critical infrastructure and industrial components around the globe.
