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In the process of petrochemical production, various reagents are added at different stages depending on the requirements of the manufacturing process. Among these reagents, there are many that are corrosive. Changes in raw materials can also result in the presence of corrosive components, and certain intermediate products formed during production are as well. The production environment itself contains various corrosive substances. When petrochemical equipment comes into contact with these corrosive substances, electrochemical reactions can occur; the large amount of metal oxides generated can alter the surface properties of the metal components, thereby reducing their performance. The type of metal used in petrochemical equipment has a varying impact on its corrosion resistance. The corrosion resistance of a metal is closely related to the structure of its microscopic particles; metals with finer grains exhibit greater corrosion resistance. For example, cast iron has better corrosion resistance than stainless steel. The smoothness of the metal surface also plays a significant role in corrosion resistance – the smoother the surface, the greater the corrosion resistance. Among the various steel components used in petrochemical equipment today, those with coarse grain structure are commonly employed; they have poor corrosion resistance. Using stainless steel components in such equipment can enhance its corrosion resistance. Research on the production of petrochemical equipment shows that the flow rates of corrosive gases and liquids to which such equipment is exposed during operation also have a significant impact on the degree of corrosion experienced by it. Research shows that the faster the flow rate of corrosive gases or liquids in petrochemical equipment, the greater the degree of corrosive damage suffered by such equipment. Conversely, if the flow rate of these corrosive gases or liquids is slower or even stagnant during the production process, the corrosion rate will be significantly lower compared to when they are flowing at high speeds.