Eight NDT Methods
Uncovering hidden flaws with eight methods
PILETA Co., Ltd. is a registered nondestructive testing (NDT) business (UT/MT/PT/ECT/VT) with 50 units of NDT equipment across 21 types. We apply methods from phased array ultrasonics to holography and store every inspection result in a database for equipment history management.
Core Methods
Eight NDT methods
From phased array ultrasonics to holography, we select and apply the most suitable method for each type of equipment and flaw.
Phased array ultrasonic testing
A-, B-, C- and S-scans, high-angle inspection and precise flaw location
Eddy current array
High-speed scanning for material inhomogeneity and surface and near-surface flaws
Natural frequency testing
Dynamic characteristics of structures and flaw detection
Corrosion under insulation inspection
Detection of corrosion beneath insulation
Metal magnetic memory testing
Metal magnetic memory (MMM) method, as standardized in ISO 24497
Acoustic emission
Real-time detection of stress waves and monitoring of flaw growth
Infrared thermography
Detection of thermal inhomogeneities and evaluation of delaminations and voids
Holographic inspection
Quantitative measurement of micro-deformation and delamination
Integrated Application & PiletaDAS
Inspection results become data assets
We apply the eight methods in an integrated way to key power plant equipment, including gas turbines, heat exchangers, pressure vessels and piping. All inspection results are stored in a database through PiletaDAS (Damage Analysis System), our in-house platform. Inspections do not end as one-off events; they become data assets across the equipment lifecycle.
Inspection
Integrated application of the eight methods
Data registration
Inspection history registered in PiletaDAS
History analysis
Equipment lifecycle data built into a lasting asset
For probability of detection (POD) curve development for aerospace superalloys and inspection procedures based on the Engine Structural Integrity Program (ENSIP, MIL-HDBK-1783B), see Industries › Aerospace & defense.
Scope · Deliverables · Standards
Scope, deliverables and standards
| Item | Details |
|---|---|
| Applicable equipment / industries | Power plant gas turbines, heat exchangers, pressure vessels and piping; hydrogen piping welds (PAUT); aerospace components: PAUT, ECA, MMM, process compensated resonance testing (PCRT; ASTM E2534) and fluorescent penetrant inspection (FPI) |
| Deliverables | NDT reports, detailed inspection maps linked to risk-based maintenance (RBM), and inspection history data registered in PiletaDAS |
| Applicable standards | ENSIP (MIL-HDBK-1783B) and MIL-HDBK-1823A (POD for aerospace); inspection planning linked to API RP 580/581 |
Ready When Reliability Matters
When integrity needs proof, PILETA delivers
The PILETA Test & Evaluation Center is accredited by the Korea Laboratory Accreditation Scheme (KOLAS) as a testing laboratory (Accreditation No. KT921). From testing and failure analysis to digital solution consultations, our engineers respond to you directly.
T. +82-42-368-0180 · pileta@pileta.co.kr