Detection of Internal Defects in Steel Billets by Ultrasonic Detector

The present work, aims to inspect by ultrasonic method numbers of imported steel billets, which cause stopping and breaking in the production – lines. The inspection was done by using ultrasonic detector,(echo – pulse method), a straight – beam probe was used as a transducer and receiver, at the same time. The results of inspection showed the possibility of accurate defect determination in steel billets, and also showed a good agreement between the experimental results and the number of stopping and breaking in production in factory, and also the necessity to use that inspection method in the imported billets which cause the continuous breaking in the production – lines.