Super duplex flanges are specialized connectors used in piping systems, manufactured from a high-performance alloy known as super duplex stainless steel. These flanges are designed to join pipes, valves, or other equipment together, providing secure and leak-proof connections in demanding and corrosive environments.
Super duplex stainless steel is an alloy with an increased content of chromium, molybdenum, and nitrogen compared to standard duplex stainless steels. It exhibits a balanced microstructure of austenite and ferrite phases, offering exceptional strength, corrosion resistance, and superior performance in aggressive conditions containing chlorides, acids, and high temperatures.
Super duplex flanges are renowned for their outstanding resistance to various forms of corrosion, including pitting, crevice corrosion, and stress corrosion cracking.
They possess excellent mechanical properties, including higher tensile strength, yield strength, and toughness, making them suitable for applications in challenging environments.
Super duplex flanges are available in diverse types to suit different piping system requirements, such as weld neck, slip-on, socket weld, blind, threaded, and lap joint flanges.
These flanges adhere to industry standards such as ASTM A182, ASTM A240, ASME B16.5, and other international specifications, ensuring quality, reliability, and compatibility across various applications.
Super duplex flanges find extensive use in industries demanding high corrosion resistance and strength, such as offshore oil and gas exploration, chemical processing, petrochemicals, seawater handling, desalination plants, and high-pressure/high-temperature environments.
They are employed where the harsh environment poses a risk of corrosion, requiring durable and reliable connections.
Choosing super duplex flanges involves considering factors like pressure ratings, sizes, facing dimensions, temperature, and specific operational conditions to ensure they meet the performance requirements of the application.
