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Duplex Flanges

DIN 2573 Duplex Flanges (PN 6)

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Description

DIN 2573 Duplex Flanges PN 6 are premium-quality, low-pressure plate flanges made from Duplex stainless steels, designed for applications requiring both excellent corrosion resistance and high mechanical strength. Manufactured in compliance with DIN 2573 standards, these flanges provide a reliable, cost-effective solution for demanding industrial environments, especially those exposed to chloride-bearing media, high-pressure fluids, and extreme temperatures. The balanced microstructure of Duplex alloys offers superior resistance to pitting, crevice corrosion, and stress corrosion cracking, making them ideal for use in challenging service conditions. Ladhani Metal Corporation is a reliable manufacturer and global supplier of Duplex steel flanges, offering products that meet stringent quality and international performance standards. The DIN 2573 flange configuration allows for easy assembly and a secure, leak-tight seal, even in low-pressure, corrosive service environments. Pressure Rating: • PN 6 (6 bar / 87 psi): Engineered for low-pressure applications where corrosion resistance, strength, and long-term durability are required in aggressive service conditions. Flange Types: • Plate Flanges Flat, circular flanges designed for bolted piping connections with gaskets, ensuring a leak-free joint suitable for low-pressure systems. • Flat Face (FF) Flanges These flanges offer uniform surface contact, ideal for use with flat gaskets and compatible materials like non-metallic components or cast iron. • Slip-On Flanges Designed to slip over the pipe and be welded into place, these flanges offer easy alignment and simplified installation for low to moderate pressure systems. • Custom-Machined Flanges Custom-fabricated to meet specific application needs, including unique dimensions, face types, and surface finishes, in various Duplex steel grades. Duplex Steel Grades and Composition: Duplex 2205 (UNS S32205 / S31803) Composition: • Chromium (Cr): 21.0 – 23.0% • Nickel (Ni): 4.5 – 6.5% • Molybdenum (Mo): 2.5 – 3.5% • Nitrogen (N): 0.14 – 0.20% • Manganese (Mn), Silicon (Si), Iron (Fe): Balance Applications: Duplex 2205 is ideal for environments with high chloride exposure, offering enhanced strength and corrosion resistance. Commonly used in offshore platforms, heat exchangers, pressure vessels, and seawater piping systems. Applications of DIN 2573 Duplex Flanges: • Chemical and Petrochemical Plants: Used in vessels, tanks, and piping that transport acidic and corrosive chemicals, Duplex flanges provide long service life and resistance to chemical attack. • Marine and Offshore Engineering: Ideal for seawater systems and subsea equipment due to their high corrosion resistance and excellent strength under pressure. • Oil and Gas Industry: Used in flowlines, risers, and subsea systems, these flanges offer mechanical durability and protection against corrosion in harsh hydrocarbon environments. • Power Generation: Duplex flanges are used in heat exchangers, condensers, and high-pressure steam lines, delivering stability under fluctuating temperature and pressure conditions. • Water Treatment and Desalination: Well-suited for brine handling and reverse osmosis systems, thanks to superior resistance to chloride-induced stress corrosion. Key Features: • Manufactured in accordance with DIN 2573 standard • Rated PN 6 for low-pressure systems requiring corrosion resistance • Exceptional performance in environments with chlorides and high mechanical stress • Available in Duplex 2205, Super Duplex 2507, and other Duplex grades • High strength combined with cost efficiency • Excellent fatigue resistance and weldability • Customization available for surface finishes, flange faces, and drilling patterns Conclusion: DIN 2573 Duplex Flanges PN 6 by Ladhani Metal Corporation offer a robust, corrosion-resistant solution for industries operating in aggressive chemical, marine, and high-pressure environments. Combining the mechanical strength of Duplex stainless steels with the reliable DIN 2573 design, these flanges ensure secure, long-lasting connections in critical systems. For detailed specifications, special dimensions, or technical consultations, contact Ladhani Metal Corporation today.

Pressure Rating PN 6
DIN specification DIn 2573
material Duplex steel
country of origin Made in India
manufactured by Ladhani Metal Corporation

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