Offshore structures are highly exposed to corrosion due to exposure to seawater, and one of the most destructive forms of corrosion is known as pitting corrosion. In order to ensure the safety of marine structures, knowing the effect of pitting corrosion on the strength of tubular joints is essential. The purpose of this study is to investigate the static strength of corroded tubular T joints (with circular hollow sections) under compressive axial force. First, a nonlinear finite element model was validated in Ansys software using the experimental model results. Then, due to the lack of corrosion information in the joints, the same numerical model for the model with the random pitting corrosion for validation was used and it was observed that the corrosion significantly reduced the static strength of the joints. In the next step, 62 numerical models were analyzed to evaluate the effects of the geometric parameters of the joints, the dimensions of the hole, the relative distribution of corrosion and the percentage of corrosion on the strength of the joints. The results showed that increasing corrosion depth (reduction of joints thickness) reduced static strength and also increasing the percentage of corrosion reduced the joint strength. The effect of geometric parameters on the intact and corroded models is similar and the results were analyzed on the force-deformation graph. The presence of corrosion in the chord members has a greater reduction in joints strength than the brace members.