KTN Belgium specializes in ultrasonic thickness measurements (UTM), non-destructive testing (NDT) and maritime inspections on inland vessels, seagoing vessels, tankers, dredgers and offshore installations.
Our experienced inspectors support shipping companies, technical managers, shipyards and classification societies with class renewal, Special Surveys, CAP inspections, dry-docking periods, repairs and condition assessments.
From the preparation and execution of the measurements to digital processing and reporting: one specialized partner for the entire inspection campaign.
Accurate measurements. Efficient execution. Reliable reporting.
Recognized for utm by leading classification societies
KTN Belgium is recognized as a specialized UTM service provider by several international classification societies, including:
- Bureau Veritas
- Lloyd’s Register
- RINA
- ABS
Our inspections are carried out in accordance with the applicable class rules and reporting requirements of the classification society involved.
We work closely with class surveyors, shipping companies, technical managers and shipyards to efficiently prepare, execute and report on every inspection campaign.

Ultrasonic Thickness Measurements
Complete UTM campaigns for ships and maritime structures
With ultrasonic thickness measurements we accurately map the current condition of the hull, allowing corrosion, pitting and material loss to be reliably identified.
KTN Belgium carries out complete UTM campaigns for, among others:
- Class renewal and Special Surveys
- Condition Assessment Programs (CAP)
- Pre-docking inspections
- Dry-dock inspections
- Condition assessments
- Preparation for repairs and steel renewal
- Pre-purchase or pre-sale inspections
Typical applications are:
- Shell plating
- Decks
- Bulkheads and frames
- Stringers and stiffeners
- Internal structures
- Ballast tanks and cargo tanks
- Areas with material loss
From inspection preparation and sketching of all structures to data processing and final reporting, we can take care of your entire UTM campaign.
Non-Destructive Testing
More than just thickness measurements
In addition to UTM, KTN Belgium offers a wide range of non-destructive testing techniques for ship structures, welded joints, piping and technical installations.
Our NDT services include:
- VT – Visual Testing
- UT – Ultrasonic Testing
- MT – Magnetic Particle Testing
- PT – Penetrant Testing
- PAUT – Phased Array Ultrasonic Testing
- TOFD – Time of Flight Diffraction
- Hardness testing
- PMI – Positive Material Identification
- Corrosion mapping
The most suitable testing technique is determined based on the material, the part to be inspected, accessibility and the applicable inspection criteria.
Maritime Inspections
From inland shipping to seagoing vessels and offshore
KTN Belgium carries out inspections in dry dock, at shipyards, in ports and on board operational vessels, depending on the scope and circumstances of the project.
Our inspection teams are deployable for a wide range of vessels and maritime structures:
- Inland vessels
- Seagoing vessels
- Tankers
- Bulk carriers
- Container ships
- Dredgers
- Tugs and workboats
- Offshore vessels
- Pontoons and floating installations
- Offshore structures
- Shipyards and repair yards
Our services can be deployed during newbuilding, class surveys, maintenance, repairs, damage surveys, dry-docking periods and scheduled inspections.
Inspections where and when you need them
Dry dock, shipyard, port or on board
We understand that inspections often need to be carried out within short operational time windows.
Thanks to our flexible planning and specialized inspection teams, we can respond to tight docking schedules, limited vessel availability and urgent inspection requests.
This helps us limit delays and complete inspections within the planned schedule.
KTN Belgium - Your specialized partner for maritime inspections
CLASS RECOGNITION — Recognized UTM service provider for multiple international classification societies.
MARITIME SPECIALISTS — Specialized in ships, maritime structures, UTM and NDT.
XPERIENCED INSPECTORS — Qualified and experienced inspectors for conventional and advanced testing techniques.
FULL SERVICE — From preparation and execution to data processing and reporting.
FLEXIBLE DEPLOYMENT — Deployable in Belgium, Europe and international ports.
CLEAR REPORTING — Accurate and traceable measurement results in accordance with applicable inspection and class requirements.
OPERATIONAL EFFICIENCY — A practical approach focused on minimal downtime and efficient execution of the inspection.

Planning a UTM campaign or maritime inspection?
Do you need support with a class survey, dry-docking period, repair, damage inspection or scheduled maintenance stop?
Send us the available drawings, inspection scope, class requirements and schedule.
Our team will review the request and propose a suitable inspection approach.