1. AITIS Eddy Current Tubular
Inspection Services
RFT &NFT
Eddy Current
Abdallah I. Al Tamimi Industrial
Services Establishment
Testing and Inspection Works – ISO 9001:2008 Certified
P.O BOX # 30844, Lot 121-123 Al-faiha Industrial City Al-Khobar-31952 Saudi
Arabia.TEL:038640369 FAX: 038640396, Site: www.tamimiservices.com,
e-mail: sales@tamimiservices.com

2. EDDY CURRENT TUBULAR INSPECTION
What is Eddy Current?
Eddy Current Testing (ECT) is an electromagnetic non destructive testing Technique widely used
in Power Plants, Petro- Chemical, Refineries and other Industries.
Eddy current testing works on the principles of electromagnetic induction. In eddy current
technique, a probe or sensor is excited with sinusoidal alternating current to induce eddy currents
in an electrically conducting material such as stainless steel, aluminum etc. being tested. The
change in coil impedance that arises due to distortion of eddy currents at regions of discontinuities
and associated magnetic flux leakages is measured and correlated with the cause producing it i.e.
discontinuities.
This is a surface technique and can readily detect very shallow surface defects and sub-surface
defects within a depth of 6 mm.
Eddy current testing is a simple, high-speed, high sensitive, versatile and reliable NDT technique
and is popularly used in many engineering industries.
Advantages:
 High Examination Rate (80 – 100 or more tubes Inspection per hour).
 Examination of Ferrous and non-ferrous material
 Repeatability - compare historical and subsequent test results to establish corrosion rates and
remaining life.
 ECT discriminates between I.D and O.D. defect orientation.
 ECT is sensitive to gradual wall loss, cracking, very small pitting etc.
Advantages and Services Offers Abdallah I. Al Tamimi Industrial Services Est.
Advantages of Remote Field Testing (RFT):
 Ideal for ferrous tubes (Boiler tubes)
 RFT can detect defects away from Tube support plate, and tube sheet.
 Detect localizes corrosion/erosion
 Inspects ferromagnetic materials (Carbon steel and Stainless Steel)
 Detect wall loss

3. Advantages of Near Field Testing (NFT):
 Inspect ferromagnetic material
 Can detect defects close to under TSP & Tube sheet
 Can distinguish between inside diameter and outside
diameter defects
 Suitable for fin fan tubes
 Can detect localized corrosion/Erosion
 Detect circumferential cracks or a tube sheet transition zone
Applications:
 Condensers
 Feed Water Heater
 Chillers
 Coolers
 All Heat Exchangers
Eddy Current Analysis Strip Chart And Impedance Plane

4. AITIS Location Map:
Contact us:
Dhib Al Subaii Dia Awad
Executive Manager Training Manager
Mobile: +966 505 824 942 Mobile: +966 549 535 714
Email: dhib@tamimiservices.com Email: sirelkhatim@tamimiservices.com
Sultan Al harthi Gopikrishnan.T
Operation Manager Business Development Engineer
Mobile: +966 502 572 227, +966 557 587 772 Mobile: +966 500 566 806
Email: sultan@tamimiservices.com Email: gopikrishnan@tamimiservices.com