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Eddy Current Inspection:

Eddy Current testing or Eddy Current Inspection is used for the detection of surface breaking/cracks and near surface planar defects in welds, heat affected zone and parent material.  EIWAA offers eddy current testing applied on coated and uncoated objects &the eddy current testing can be carried out on all accessible surfaces on welds of almost any configuration.

Minimum Surface preparations is required for the eddy current testing. Depending on the sensitivity requirements, Eddy current inspection is able to detect surface cracks through non metallic coating of up to 2mm thickness. Eddy Current Inspection and testing equipment shall be able to operate the frequency range of 1 KHz to 1 MHz. For the Eddy current testing instrument calibration at site, a calibration block of same type material shall be used for calibration .

Eddy Current inspection instrument calibration block have EDM Notches of  0.5 mm,1mm and 2 mm depth; unless otherwise agreed between contracting parties. Non metallic stripes of a known thickness to simulate the coating or actual thickness on the calibration block shall be used. EDDY Current inspection of welds in ferritic materials, the frequency shall be chosen according to the material (conductivity, permeability),the defect(type, location and size)and the probe design. Its suggested to use a frequency around 100 KHz. The minimum size of indication that the eddy current method is capable to detect in ferritic steel weld in the  as welded condition is 1mm deep x5mm length. If there is a need for further clarification, or when the removal of an indication shall be verified, it is requested that the testing is supplemented with other NDT inspection method like Magnetic Particle Testing or Penetrant Testing. where a non accessible indication is noted, but no depth information is possible alternative NDT Inspection method such as Ultrasonic and/or Alternating Current Potential drop technique shall be used to determine the depth and orientation of indication.

Eddy Current Inspection/testing is used to measure and sizing of surface cracks in weld or parent material whether the component is painted or coated. Normally Eddy Current Inspection is used as a part of condition monitoring or In-service Inspection requirements. EIWAA is a leading Advanced NDT Inspection company for providing Eddy Current Inspection for rigs, Platform and Jackets. Our Eddy Current Inspection Instrument is approved by API ,AWS and ASME and the Eddy Current Inspection procedures are approved by major oil and gas companies like PDO,QATAR Gas, ADNOC and ARAMCO.

Benefits of Eddy Current Inspection:

EIWAA, Leading NDT Inspection Companies in UAE using both Conventional NDT Inspection technique as well as Advanced NDT Inspection methods. Our Eddy Current Inspection system accompanied by special probes are typically used to obtain higher test sensitivity for non-magnetic conductive materials.

Benefits of Eddy Current Inspection are as follows, 

Eddy Current Inspection is applicable for base materials or welds, ferritic or non- ferritic conductive materials.
Eddy Current Inspection is used to determine the sizing of defects means both depth & length information’s.
Eddy Current Inspection required minimum surface preparations and it can be applied over paint or coatings.

Applications of Eddy Current Inspection:

Our Eddy Current Inspection Service are widely used in rigs, Platforms, Jackets, Ships &Vessels etc. Some of the Eddy Current Inspection applications are as follows,

Eddy Current Inspection used to determine the detection and sizing of fatigue cracks & hydrogen cracking.
Eddy Current Inspection is used in fillet weld joints of offshore & onshore units.
Eddy Current Inspection for gears, gear tooth, Crank shaft, Cylinder heads, turbines aerospace industry.
Eddy Current Inspection used in Oil/Storage tank terminals for pressure vessel, storage tank and Piping Inspections.