Rupal Metals is a well-known manufacturer and supplier of excellent Duplex Steel Forgings in Delhi, India. With years of experience and rigorous attention to quality, Rupal Metals has become a reliable name among metal forgings. Rupal Metals supplies an extensive selection of Duplex Steel Forgings that suit different industries, providing superior durability, corrosion resistance, and strength. Supported by sophisticated technology and expert manpower, Rupal Metals is always delivering precision-engineered products that are of global standards. Customer satisfaction and prompt delivery commitment have made them a favorite among the domestic and foreign markets.
Duplex Steel Forgings usually include around 22–25% chromium, 4–7% nickel, 3–5% molybdenum, and iron balance, along with nitrogen and manganese for added strength. The duplex microstructure possesses superior yield strength (approximately 450–620 MPa) and excellent fatigue life. It has the benefits of both the austenitic and ferritic stainless steels, providing exceptional corrosion resistance, particularly for stress corrosion cracking and pitting. The material also retains good weldability and toughness at different temperatures, hence well suited for rigorous application in aggressive environments like offshore and marine applications.
| 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 are in great demand, as they are used extensively in industries demanding superior strength and corrosion resistance. The typical uses are in offshore oil and gas platforms, chemical processing equipment, heat exchangers, and pressure vessels. They are also employed in marine conditions, desalination equipment, and structural parts subjected to severe climates. Because of their strong resistance to chloride stress corrosion and superior mechanical properties, Duplex Steel Forgings are best suited for pipelines, flanges, shafts, and valves. They have long service life and high durability, lowering maintenance expenses, and are the most favored material among engineers and project managers when operating in harsh industrial and environmental conditions.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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