Structural fatigue, localized corrosion, and material wastage on vessel hulls, bulkheads, and internal tanks can severely compromise seaworthiness, class standing, and structural safety. MP Inspection provides independent 3rd-party Ultrasonic Thickness Measurement (UTM) and Non-Destructive Testing (NDT) services for shipowners, shipyards, classification societies, and marine underwriters worldwide.
Key Services & Operational Scope
- Class-Approved Ultrasonic Thickness Measurement (UTM)
- Systematic steel plate gauging across hull shell plating, main deck, bottom plating, transverse bulkheads, and tank tops.
- Execution of UTM during Class Special Surveys, Intermediate Surveys, and Annual Audits in accordance with IACS requirements.
- Sounding pipe, air pipe, and structural stiffener thickness measurement to assess overall structural integrity.
- Non-Destructive Testing (NDT) & Weld Inspection
- Magnetic Particle Testing (MT) & Liquid Penetrant Testing (PT): Surface crack detection on critical weld seams, deck fittings, crane pedestals, and engine mounts.
- Ultrasonic Flaw Detection (UT): Internal volumetric inspection of full-penetration butt welds, castings, and forgings.
- Radiographic Testing (RT) Oversight: Verification of critical structural welds during shipyard construction or major refit projects.
- Corrosion Mapping & Material Wastage Analysis
- Quantitative evaluation of uniform corrosion, pitting intensity, and localized plate dimpling against original building specifications.
- Comparison of measured plate thickness values against Class-mandated maximum allowable diminution limits.
- Risk assessment and lifetime extension analysis for aging vessels, barges, and offshore structures.
- Steel Renewal Estimation & Repair Supervision
- Precise calculation of required steel renewal quantities, plate weights, and repair locations prior to dry-docking.
- Technical oversight of steel fit-up, edge preparation, welding sequence, and NDT verification during shipyard repairs.
- Final delivery of official UTM Survey Reports formatted for direct submission to Classification Societies.
International Standards & Compliance
Our UTM and NDT inspection procedures strictly align with recognized international classification society rules and technical standards:
- IACS Unified Requirements (UR Z10.1 to UR Z10.5 for Hull Surveys)
- ISO 9712 / ASNT Level II & III Qualifications for NDT Technicians
- Classification Society Guidelines (DNV, Lloyd’s Register, Bureau Veritas, ABS, ClassNK)
Why Choose MP Inspection?
| Feature | Client Benefit |
| IACS-Compliant Reporting | Reports directly accepted by all major IACS classification societies and flag states. |
| Cost-Effective Steel Schemes | Accurate corrosion mapping prevents unnecessary over-replacement of acceptable steel plates. |
| Rapid Onboard Deployment | Certified UTM operators available for global shipyard deployment or riding surveys during sea voyages. |
Request a UTM or NDT Survey
Safeguard your vessel’s structural integrity and meet Class requirements. Contact our technical inspection team today.