Introduction Alloy 20, also known as Carpenter 20, is a nickel-iron-chromium alloy with excellent resistance to sulfuric acid and other aggressive environments. Designed for maximum resistance to acid attack, especially sulfuric acid, it is ideal for applications in industries where corrosion resistance and durability are paramount. Overview Alloy 20 flanges are integral components used to connect pipes, valves, pumps, and other equipment within a piping system. These flanges are highly sought after in industries that deal with corrosive chemicals, ensuring both the safety and longevity of the piping systems. Specification Chemical Composition Nickel (Ni): 32-38% Chromium (Cr): 19-21% Iron (Fe): Balance Molybdenum (Mo): 2-3% Copper (Cu): 3-4% Carbon (C): 0.02-0.03% Mechanical Properties Tensile Strength: 551 MPa (min) Yield Strength: 241 MPa (min) Elongation: 30% (min) Hardness: 217 HB (max) Common Standards ASTM B462 ASME SB462 Advantages Corrosion Resistance: Exceptional resistance to sulfuric acid, chloride-induced pitting, and stress-corrosion cracking. Versatility: Suitable for a wide range of applications in different environments. Durability: High tensile and yield strength ensure longevity and reliability. Ease of Fabrication: Can be readily fabricated using standard methods. Major Industry Uses Chemical Processing Alloy 20 flanges are extensively used in chemical processing industries where they handle sulfuric acid, phosphoric acid, and other aggressive chemicals. Their resistance to corrosion ensures the integrity and safety of the entire system. Pharmaceutical Industry In the pharmaceutical industry, where purity and corrosion resistance are crucial, Alloy 20 flanges ensure the safe transfer of reactive and corrosive substances used in the manufacturing process. Food and Beverage The food and beverage industry benefits from Alloy 20’s resistance to organic acids and chlorides, making it suitable for processing and storage equipment. Petrochemical Industry In the petrochemical sector, Alloy 20 flanges are used in piping systems that transport and process corrosive chemicals and by-products, ensuring operational safety and efficiency. Conclusion Alloy 20 flanges offer unparalleled corrosion resistance, strength, and durability, making them an ideal choice for industries dealing with harsh and corrosive environments. Their versatility and reliability ensure safe and efficient operations, reducing maintenance costs and enhancing the longevity of piping systems. Whether in chemical processing, pharmaceuticals, food and beverage, or petrochemicals, Alloy 20 flanges provide a robust solution for demanding applications.
Topics
