The corrosion resistance of forged flanges mainly depends on its material selection and anti-corrosion measures. Common materials include carbon steel, alloy steel, stainless steel, etc., each material has a certain corrosion resistance. Carbon steel is an economical and practical material, but its corrosion resistance is relatively low and it is susceptible to oxidation, corrosion and corrosion fatigue in wet environments. Therefore, in the application scenario, especially in the case of corrosive media, further anti-corrosion measures such as coating or galvanizing are required. For applications that require higher corrosion resistance, forged flanges in alloy and stainless steel are available. These materials have good corrosion resistance and can be used in a variety of corrosive media. In addition, in order to enhance the corrosion resistance of the forged flange, surface treatment and anti-corrosion coating can also be used. For example, through electroplating, spraying or hot dip plating, a layer of anti-corrosion protective film is formed on the surface of the flange to improve its ability to resist corrosive media. It should be noted that in the specific selection of materials and anti-corrosion measures, it is necessary to evaluate and make decisions according to engineering requirements, medium characteristics, working temperature and pressure and other factors. For special environments and high corrosion requirements, it is recommended to consult professional engineers or refer to relevant standards and specifications to ensure that the corrosion resistance of forged flanges meets the requirements.