Q235 and Q345(formerly Q345)are two commonly used steels for storage tanks.Studying their corrosion behavior and corrosion laws in the medium is of great significance for the correct design and maintenance of storage tank operation.In this study,gravimetric and electrochemical methods were used to test the corrosion behavior of Q235 and Q345 steels used for storage tanks in finished oilfield media and crude oil media,to analyze the corrosion laws of different factors affecting storage tank materials,and to determine the corrosion mechanism.
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