Ultrasonic Thickness Gauging (UTG) is being done for measuring wall thickness of material, for estimating the uniform or localized corrosion on far side of the material. Both through coat and echo to echo techniques are utilized to better assess the actual condition of the material under examination. Corrosion rate and remaining life calculation are also dependent upon UTG data.

UTG finds its application in construction, manufacturing and inservice plants which includes inspection of piping systems, pressure vessels, storage tanks and much more.