Ultrasonic Thickness Measurements (UTM) – Wales & UK

Professional Marine Surveying by Celtic Maritime

WHAT ARE ULTRASONIC THICKNESS MEASUREMENTS?


Ultrasonic Thickness Measurements (UTM) are a non-destructive testing methodused to determine the thickness of steel structures on vessels. Using high-frequency sound waves, a specialist gauge measures how much material remains in critical areas such as hull plating, decks, tanks, and structural members.

This allows shipowners, operators, and insurers to understand the true condition of a vessel without causing any damage or disruption.

OUR ULTRASONIC THICKNESS MEASUREMENT SERVICES


Celtic Maritime provides comprehensive UTM surveys across Wales and the wider UK, including:

  • Hull plating inspections (internal and external)
  • Deck and superstructure thickness testing
  • Ballast tanks
  • Structural members, frames, and bulkheads
  • Coding and compliance support


All measurements are taken using calibrated, industry-approved ultrasonic equipment, ensuring accurate and repeatable results.


WHAT YOU WILL RECEIVE

Following a survey, you will receive a clear, professional report including:


Thickness readings mapped across key areas

Identification of corrosion or wastage trends

Highlighted critical areas requiring attention

Recommendations for repair or continued monitoring

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