Ultrasonic Inspection is a non-destructive testing method capable of detecting both surface and sub-surface flaws in components and welds. UT can also be used to measure the thickness of materials, a common method of evaluating metal losses due to corrosion or erosion.


  1. To determine the extent of internal and/or external corrosion/erosion in process piping and pressure vessels
  2. For new fabrication weld inspection to verify code compliance:
  3. ASME Section V for pressure vessels
  4. ASME B31.1 and B31.3 for piping
  5. API 1104 for pipelines


  1. Ultrasonics can be used to detect, locate and characterize flaws that other NDE methods cannot:
  2. Some capabilities of determining the size, orientation and nature of internal flaws
  3. High penetrating power for detection of defects deep in the material
  4. High sensitivity allowing for location of extremely small flaws
  5. Only one surface needs to be accessible
  6. Field Ready
  7. Systems are portable and battery powered
  8. Light enough to easily take onto scaffolding
  9. Non-hazardous to operations or other nearby personnel, and has no effect on equipment or materials in the   vicinity


  1. Parts that are rough, irregular in shape, or very small or thin are more difficult to inspect
  2. Surfaces must be prepared by cleaning and removing scale, loose paint etc. prior to inspection
  3. Manual operation requires careful attention by experienced technicians