This research aims to inspect the defects and discontinuities in steel billet by
ultrasonic detector. Straight beam probe used to detect a lot number of imported steel
billets that clearly have internal defects.
The results showed the possibility
of initial detection by straight beam probe, and
initial defining the types of defects such as, micro and macro cracks, shrinkage defect,
blow holing, inclusion, porosity and others type of internal defects.
The experiments showed that if the necessity is defining the size of defects, this
requires angle beam probe in addition to straight beam probe.
