Rupal Metals is a reliable maker and distributor of premium Super Duplex Steel Forgings from Delhi, India. The company is known for providing superior metallurgical solutions and serves a broad spectrum of industrial applications demanding superior strength and corrosion resistance. Rupal Metals provides precision-forged parts made of superior Super Duplex Steel to deliver exceptional mechanical properties and extended service life. With a focus on global quality standards, sophisticated forging processes, and timely delivery, Rupal Metals is an ideal partner for customers looking for high-performance, heavy-duty forged products for severe and demanding applications.
Super Duplex Steel Forgings consist of high chromium (24–26%), nickel (6–8%), molybdenum (3–5%), and nitrogen (0.2–0.3%) with little carbon content. These constituents deliver superior pitting, crevice, and stress corrosion cracking resistance. Mechanically, they possess high yield strength (usually on the order of 550 MPa), tensile strength well in excess of 750 MPa, and elongation at about 25%. Their duplex microstructure of austenite and ferrite adds toughness and resistance to fatigue and thus makes these forgings most suitable for corrosive and high-pressure conditions where normal stainless steels are inadequate.
| 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. |
To verify the quality of Super Duplex Steel forgings, check for certifications like ASTM, ASME, or ISO standards. Conduct tests such as mechanical property testing, chemical composition analysis, and non-destructive testing (NDT) like ultrasonic or magnetic particle inspections.
Compatible welding processes for Super Duplex Steel forgings include Tungsten Inert Gas (TIG), Metal Inert Gas (MIG), Shielded Metal Arc Welding (SMAW), and Submerged Arc Welding (SAW), using appropriate filler materials.
Super Duplex Steel forgings are governed by standards such as ASTM A182, ASTM A240, ASME SA-182, ASME SA-240, and EN 10088-3, which define material properties, chemical composition, and mechanical requirements.
Super Duplex Steel Forgings find extensive application in industries like oil and gas, petrochemicals, marine, power generation, and desalination plants. Their higher corrosion resistance and mechanical strength also make them perfect for making shafts, flanges, valve bodies, rings, and other essential parts that are exposed to tough environments. These forgings are well adapted to offshore platforms, heat exchangers, subsea equipment, pressure vessels, and structural applications with high stress. Their ability to withstand harsh temperatures and corrosive environments makes them a valuable asset in both chemical processing and marine engineering industries.
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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