Vit Krivy, Monika Kubzova, Viktor Urban, Assessment of Steel Tanks Exposed to Corrosion, Journal of Engineering and Applied Sciences, Volume 12,Issue 21, 2017, Pages 5365-5368, ISSN 1816-949x, jeasci.2017.5365.5368, (https://makhillpublications.co/view-article.php?doi=jeasci.2017.5365.5368) Abstract: The initiative for a study regarding the influence of corrosive weakening came at the request of the company CEZ, a.s. to process methodical procedure that is used to evaluate measured residual thickness of walls of reservoirs in operation. This study, is introduced a part of the methodical procedure dealing with the way how the corrosion weakening affects the value of circumferential tensile stress in the wall of cylindrical tank. Keywords: Corrosion;assessment of steel tanks;circumferential tensile stress;internal pressure;cylindrical tank;methodical