Ladhani Metal Corporation is a leading manufacturer and exporter of DIN 2565 duplex flanges, designed for reliable, high-strength connections in low-pressure piping systems. Manufactured in accordance with DIN 2565 standards and typically offered with a PN 6 pressure rating, these flanges are ideal for threaded pipe joints where welding is not required. Duplex flanges are crafted from duplex stainless steel, known for its dual-phase microstructure that combines the strength of ferritic steel with the corrosion resistance of austenitic steel. This makes them an excellent choice for applications where both mechanical performance and resistance to harsh environments are critical. Flange Types: • Threaded (Screwed) Flanges: Designed for easy installation and disassembly without welding, suitable for systems requiring frequent maintenance. • Raised Face (RF) Flanges: Enhances gasket sealing capabilities, ensuring leak-proof performance in pressurized systems. • Flat Face (FF) Flanges: Commonly used in low-pressure piping systems, especially with non-metallic gaskets. • Forged Threaded Flanges: Manufactured through forging for improved toughness, impact resistance, and pressure-handling capabilities. Duplex Steel Grades and Composition: Duplex 2205 (UNS S31803 / S32205) o Chromium (Cr): 22.0 – 23.0% o Nickel (Ni): 4.5 – 6.5% o Molybdenum (Mo): 3.0 – 3.5% o Nitrogen (N): 0.14 – 0.20% o Iron (Fe): Balance Applications: Ideal for chemical processing, marine applications, and high-chloride environments due to excellent pitting and crevice corrosion resistance. Applications of DIN 2565 Duplex Flanges: • Chemical and Petrochemical Industries: Withstand acidic and chloride-rich environments. • Marine and Offshore Structures: Resistant to seawater corrosion and stress corrosion cracking. • Oil & Gas Industry: Used in pressure vessels, heat exchangers, and subsea pipelines. • Pulp and Paper Industry: Excellent resistance to sulfide and chloride attack. • Desalination Plants: Long-lasting performance in salt-heavy environments. Key Features: • Compliant with DIN 2565 standard and PN 6 pressure rating • Superior strength and stress resistance compared to standard stainless steels • Excellent resistance to pitting, crevice, and stress corrosion cracking • Available in Duplex 2205 and Super Duplex 2507 grades • Delivered with full traceability and third-party inspection certificates Conclusion: DIN 2565 duplex flanges from Ladhani Metal Corporation are engineered for optimal performance in environments demanding both strength and corrosion resistance. Their robust construction, advanced metallurgy, and precise engineering make them ideal for industries where reliability and safety are paramount. For technical specifications, pricing, or bulk order inquiries, reach out to Ladhani Metal Corporation today.
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