Due to the long history of railroad companies around the world, varying means of examination according to the specifications for the different railroad components have been carried out based on the general industrial progress of the country [1 – 3]. For more than 50 years the application of customized ultrasonic techniques for the examination of railroad components has increased, in comparison to conventional ultrasonic techniques used until the end of 20th century. In this traditional atmosphere some accidents have disturbed the silent harmony of companies involved in the production of critical parts. More than ever high-speed modern trains require modern and advanced examination techniques [4 – 11]. For practical application new ultrasonic and eddy current techniques [12 – 14] have been developed and optimised in cooperation with Die Bahn AG (German railroad carrier). In the present contribution the inspection of railroad wheels and the railway track gauge corner will be