304 Stainless Steel Flange is a type of flange made from a specific grade of stainless steel called 304, which is a non-magnetic, austenitic stainless steel with excellent corrosion resistance and high-temperature resistance. The flange is designed to connect two pipes or a pipe and a component, such as a valve or a pump, together. 304 stainless steel flanges are commonly used in a variety of industries, including chemical processing, food and beverage, and pharmaceuticals.