Stainless Steel 347 JIS 20K Flanges

Stainless Steel 347 is an austenitic type of stainless steel that contains columbium and tantalum as stabilising elements. These elements enhance the steel's resistance to intergranular corrosion, high-temperature creep, and stress rupture and improve its toughness in corrosive environments like phosphoric and sulfuric acids. The chemical composition of Stainless Steel 347 JIS 20K flanges typically includes elements such as carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, columbium and tantalum, and iron. The specific composition is designed to provide a well-balanced combination of properties that makes SS 347 suitable for various applications, including those in corrosive environments. Due to their strength and corrosion resistance, JIS 20K flanges are often used in high-pressure piping and pressure vessel applications.

SS 347 JIS 20K Flanges are commonly used in industrial applications where high strength, high-temperature resistance, and corrosion resistance are required. These flanges are made of alloy 347, which contains chromium, nickel, and other elements that enhance its durability and corrosion resistance. The JIS 20K rating indicates that they are designed to handle high pressure, with a maximum pressure rating of 20 kilopascals. This makes them ideal for use in high-pressure piping systems. The high nickel content in these flanges makes them resistant to stress corrosion cracking and intergranular corrosion, making them suitable for use in harsh chemical environments. In addition, these flanges are easy to fabricate and can be machined to meet specific requirements, making them a popular choice in industries such as petrochemical, chemical processing, and power generation.