Descriptors | Steels, Forgings, Non-destructive testing, Ultrasonic testing, Austenitic steels, Ferritic steels, Stainless steels, Consumer-supplier relations, Test equipment, Probes, Test specimens, Surfaces, Surface properties, Sensitivity, Classification systems, Shape, Testing conditions, Reverberation, Patterns, Acceptance (approval), Quality, Grades (quality), Dimensions, Thickness, Angles (geometry), Depth, Amplitude |