EDDY CURRENT TESTING SERVICES
Eddy-current testing (also commonly seen as eddy current testing and ECT) is one of many electromagnetic testing methods used in nondestructive testing (NDT) making use of electromagnetic induction to detect and characterize surface and sub-surface flaws in conductive materials.
Applications
ECT finds applications in both tubing and surface applications
Detection capabilities to defect type in tubing
- Inner-diameter (ID) pitting: excellent
- Outer-diameter (OD) pitting: excellent
- Axial cracking: acceptable, but limited
- Circumferential cracking: acceptable, but limited
- ID corrosion: excellent
- OD corrosion: excellent
- Defects at tubesheet: acceptable, but limited
Sizing capabilities to defect type in tubing
- Inner-diameter (ID) pitting: good
- Outer-diameter (OD) pitting: excellent
- Axial cracking: good
- Circumferential cracking: unsuitable
- ID corrosion: good
- OD corrosion: excellent
- Defects at tubesheet: good
Suitability according to material
ECT on surfaces
- Effective on coatings/paint: yes
- Computerized record keeping: partial
- 3D/Advanced imaging: none
- User dependence: high
- Speed: low
- Post-inspection analysis: none
- Requires chemicals/consumables: no
list of ndt testing services in chennai
list of civil ndt testing services in chennai