Aiman Metals, with its roots in Kuala Lumpur, Malaysia, is one of the foremost manufacturers and exporters of high-quality metal products with a heavy emphasis placed on Duplex Steel Forgings. Renowned for their toughness, resistance to corrosion, and strength, these forgings are designed to function steadily in harsh industries like marine engineering, chemical processing, and oil and gas. With a passion for precision and perfection, Aiman Metals ensures that all products are of the highest quality, providing reliable solutions to critical applications. Our focus on Duplex Steel ensures optimal performance, long life, and reliability even in the toughest and most aggressive industrial conditions.
Duplex Steel Forgings consist of a balanced microstructure of austenitic and ferritic phases, which is unique in combining high strength with exceptional toughness. Their usual composition consists of 18–28% chromium, 4–8% nickel, 2–5% molybdenum, with small amounts of nitrogen, manganese, and silicon. The alloy has a yield strength of approximately 450–650 MPa, tensile strength of 620–850 MPa, and elongation of 25–40%. Duplex Steel demonstrates superior pitting, crevice corrosion, and chloride stress corrosion cracking resistance. Its proportional properties guarantee longevity and exceptional performance in high-pressure, seawater, or aggressive chemical environments.
| 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. |
Verify duplex steel forgings' quality by checking certifications, such as ASTM or ISO standards, conducting material testing (e.g., tensile, hardness, corrosion resistance), and inspecting for consistent dimensions, surface finish, and proper labeling.
Yes, duplex steel forgings are highly resistant to corrosion due to their unique blend of austenitic and ferritic microstructures, providing excellent resistance to pitting, crevice corrosion, and stress corrosion cracking.
The maximum operating temperature for duplex steel forgings typically ranges from 250°C to 300°C (482°F to 572°F), depending on the specific grade and application, to maintain optimal mechanical properties.
Duplex Steel Forgings find extensive application in high-strength, corrosion-resistant, and long-lasting demanding industries. In the oil and gas industry, they are used in pipes, pressure vessels, and offshore platforms where they are subjected to chloride-enriched, high-pressure environments. In marine uses, they find wide application in propeller shafts, seawater cooling systems, and shipbuilding parts because of their superior seawater corrosion resistance. Chemical and petrochemical processes depend upon Duplex forgings for heat exchangers, valves, pumps, and reactors that are subjected to aggressive media. Their higher toughness and reliability make them the material of preference for high-performance, critical applications in various industrial processes.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aiman Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kuala lumpur, Malaysia
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