Forged flanges and welded flanges are two common ways of connecting flanges, and there are the following main differences between them: Manufacturing process: Forged flanges are manufactured by heating metal materials to a high temperature state after forging and forming, so they have a high density and strength, which can be applied to high temperature and high pressure environments. The welded flange is manufactured by welding the connection between the flange and the pipe, and the process is relatively simple. Material adaptability: Forged flange is suitable for a variety of metal materials, such as carbon steel, stainless steel, alloy steel, etc. The welding flange, due to the need for welding, has certain restrictions on the choice of metal materials, and is generally suitable for weldable materials. Connection mode: The forged flange is connected by fastening the bolts between the flange and the flange, and has good detachability. The welded flange is to weld the pipe directly to the flange to form a permanent connection. Stability: Because of the bolted connection, the forged flange can better maintain the stability and sealing of the connection. The welding flange requires welding technology to ensure the quality of the weld, and there may be unstable welding quality. Application scenario: Because the forged flange has the characteristics of high strength and high temperature resistance, it is suitable for high pressure, high temperature or high connection requirements, such as chemical industry, petroleum, electric power and other fields. Although the welding flange manufacturing process is relatively simple, but due to the permanent characteristics of welding, it is generally suitable for low pressure, low temperature or unconventional conditions. In general, the forged flange has good strength, sealing and interchangeability, which is suitable for high demand working conditions; The welded flange is relatively simple and economical, and is suitable for general working conditions. In the choice of use should be based on the specific requirements and working environment to make a reasonable choice.
