Ultrasonic thickness measurement (UTM)
Ultrasonic thickness measurement
Inspekt performs Ultrasonic Thickness Measurement (UTM) to assess remaining material thickness and detect material loss caused by, among other things, corrosion and erosion.
UTM is an important part of ship Class Renewal and is used to document the remaining thickness of the hull and other structural components prior to the class assessment.
Our staff is not only technically qualified for UTM, but also has extensive experience in ship structures, hulls, and other marine structures. We have a good understanding of the class's technical requirements and can tailor the inspection according to, among other things, the vessel's type, age, design, and current class requirements.
Ultrasonic thickness measurement is a non-destructive testing method used to determine the remaining thickness of metallic components.
The inspection may include:
- Measurement of remaining wall thickness
- Mapping of corrosion and material loss
- Inspection of pipes, tanks, and pressure-bearing components
- Measurement of local and critical areas
- Documentation of measurement results and identified deviations
- Close-up inspection of relevant areas
The results provide the client and the classification society with documented evidence to assess the current condition of the structure and the need for any measures.
Classification and IACS
Inspekt has experience with UTM inspections for class-related projects and is certified by 5 classification societies within IACS: Lloyd’s Register (LR), DNV, Bureau Veritas (BV), RINA and ABS.
IACS, the international association of classification societies, develops common technical guidelines and standards for the design, construction and maintenance of ships and marine structures.
Inspekt combines certified UTM expertise, advanced measurement equipment, and practical experience with steel structures to deliver reliable and cost-effective UTM inspections.
UTM vid Class Renewal
UTM is an essential part of the class renewal for vessels.
During class renewal, comprehensive information regarding the remaining thickness of the hull and structural components is required. Inspekt performs UTM in accordance with the requirements applicable to the specific vessel and its class.
We take the ship's type, age, construction and current class requirements when the scope of the inspection is planned.
This provides an efficient and structured basis for the continued class action process.
More than just thickness measurement
Reliable UTM inspection requires more than the right measuring equipment.
Inspekt combines technical UTM expertise with practical experience in ships and steel structures. Our inspectors are accustomed to navigating complex structures, identifying relevant measurement areas, and understanding how the results relate to the function of the structure and class requirements.
If necessary, UTM can be combined with other inspection activities to provide a more complete picture of the structure's condition.
Applications
Inspekt performs UTM on, among other things:
- Vessels
- Marine structures
- Platforms and offshore installations
- Cranes and lifting equipment
- Pipelines
- Tanks and tank structures
- Marine pressure vessels
- Boilers
- Large storage tanks
- Other steel structures exposed to corrosion or erosion
Information for a UTM quotation
Specify the structure to be examined, the material, approximate dimensions and how the measurement areas can be accessed. Please include previous measurement reports or drawings if available. For ships, also state the vessel type, classification society and whether the assignment concerns class renewal or another inspection. This allows the scope, access and documentation to be planned for the assignment.
Read our frequently asked questions about UTM on ships and checking remaining wall thickness.
Contact us
Aivaras Beleckis
Section Manager, Marine
+46 73-678 57 70
aivaras.beleckis@inspekt.se
Robert Myrvang
Business Development Manager, Norway
+47 97 04 73 56
robert.myrvang@inspekt.no