In the group of the methods of examining the corrosion cracking resistance of metals, special attention has been attracting the method based on tensile loading of a constant strain rate. Therefore, the number of methods of laboratory testing of metals has been constantly increasing, the number of types of specimens has also grown, and the range of examined materials and working media has widened. At the same time, less and less attention is paid to the conventional method of examining the susceptibility to corrosion cracking by testing specimens at a constant stress (load). This method is being gradually displaced from the methods of evaluating the corrosion-mechanical properties of structural materials. Attempts are also being made to convert the endurance of the metals at the constant strain rate to the endurance at a constant stress. This developed relation in the use of these methods is not justified because they do not reproduce and replace each other. The tests carried out using these methods determined various corrosion and mechanical properties of metals.