Stainless steel flange, commonly abbreviated as SS flange, refers to a type of pipe flange manufactured from high-quality stainless steel materials. These flanges are widely used to connect pipes, valves, pumps, and other equipment within piping systems, allowing for easy assembly, disassembly, and maintenance. Due to their excellent mechanical properties and strong resistance to corrosion, stainless steel flanges are ideal for use in demanding environments where strength, durability, and hygiene are critical.

SS flanges are primarily produced from materials such as ASTM A182 F304 and ASTM A182 F316, which are among the most commonly used stainless steel grades in industrial applications. Grade F304 offers good corrosion resistance, high tensile strength, and excellent formability, making it suitable for general industrial and commercial use. Grade F316 contains added molybdenum, providing enhanced resistance to pitting and corrosion in chloride-rich and marine environments, as well as in chemical processing applications.

Stainless steel flanges are manufactured in various standards, pressure ratings, sizes, and types, including weld neck, slip-on, blind, socket weld, threaded, and lap joint flanges. They are extensively used in industries such as oil and gas, chemical processing, petrochemical, power generation, water treatment, food and beverage, and pharmaceutical industries. Their smooth surface finish, high temperature resistance, and long service life make them a reliable and cost-effective solution for critical piping systems.