Marine platforms are one of the most important and strategic structures of a country with oil because of their high cost and important purpose. The fixed platform is the most useful marine platform and all platforms for extracting Iranian gas and oil in the Persian Gulf from this type of platform. In these structures, the main sections used are tubular profiles. Due to the corrosive environment and saline water, the affliction of these member is very high in corrosion. On the other hand, the main force for these members is the axial stresses. Therefore, the assessment of the final strength of these members in such cases is highly justifiable, which has been less of interest to researchers. Various parameters have been investigated for accurate examination of pitting corrosion like: the depth of the pits, the density of the pits, the location of the corrosion in pipe length, and the corrosion rate in the length and circumference of the tube. In order to check these parameters, different models were developed in Ansys and after analyzing the software and extracting its data, graphs were created in Excel software to make the analysis more visible. For results, it can also be said that the general procedure is that the higher the corrosion rate, the ultimate strength will be reduced, but in some cases there are exceptions that are addressed in the article.