Eddy Current Inspection:
Surface breaking/cracks and near surface planar defects in welds, heat affected zones, and parent material are detected via eddy current testing, also known as eddy current inspection. EIWAA enables eddy current testing for coated and uncoated objects, and the testing can be executed on any surface that is accessible on welds with most any shape.
Minimum Eddy current testing demands for surface preparations. Eddy current inspection could detect surface cracks through nonmetallic surfaces as thick as 2mm, depending on the sensitivity requirements. Equipment in use for eddy current inspection and testing should be able to work in the 1 KHz to 1 MHz frequency range. A calibration block composed of the same material must be used for calibration of the Eddy current testing equipment. Unless otherwise agreed upon by contracting parties, Eddy Current inspection instrument calibration blocks have EDM Notches of 0.5 mm, 1 mm, and 2 mm depth. To replicate the coating or actual thickness on the calibration block, non-metallic stripes with a defined thickness must be used. EDDY The frequency of weld inspection in ferritic materials should be defined by the material’s conductivity and permeability, the defect’s type, location, and size, and the probe’s design. It is advised to utilize a frequency of nearly 100 KHz. In a ferritic steel weld in the as-welded condition, the eddy current approach can detect indications as small as 1mm deep by 5mm in length.
It is requested that the testing be supplemented with some other NDT inspection technique like magnetic particle testing or penetrant testing when there is a need for more clarification or when the removal of an indication must be verified.
The depth and direction of an indication should be verified using an alternate NDT Inspection method, such as ultrasonic or alternating current potential drop technique, when a non accessible indication is detected but no depth information is possible.
Whether the component is painted or coated, Eddy Current Inspection/testing is used to measure and quantify surface cracks in welding or the parent material.
Eddy current inspection is typically used to fulfill inservice inspection or condition monitoring requirements. For rigs, platform, and jackets, EIWAA Gulf Rocks Inspection company is a leading supplier of advanced NDT inspection services with eddy current technology. Major oil and gas companies like PDO, QATAR Gas, ADNOC, and ARAMCO have approved the Eddy Current Inspection techniques and our Eddy Current Inspection Instrument by API, AWS, and ASME.
Benefits of Eddy Current Inspection: Leading NDT Inspection Companies in the KSA &Bahrain, EIWAA, use both conventional and cutting-edge NDT inspection methods. For non-magnetic conductive materials, our Eddy Current Inspection equipment and specific probes are often employed to achieve higher test sensitivity.
The following are some benefits of eddy current inspection:
- Ferritic or nonferritic conductive materials could be used as base materials or welds in eddy current inspection.
- The size of defects, which includes both depth and length information, is evaluated via Eddy Current Inspection.
- Only minimal surface preparation is required for eddy current inspection, and it can be used over paint or other coatings.
Uses for Eddy Current Inspection:
- We apply our eddy current inspection services widely in rigs, platforms, jackets, ships, and vessels, among other objects; below are some applications for eddy current inspection:
- The detection and sizing of fatigue cracks and hydrogen cracking are performed using eddy current inspection.
- Fillet weld joints of offshore and onshore units are examined using eddy current technology.
- Eddy current inspection is used in the aerospace sector to inspect gears, gear teeth, crankshafts, cylinder heads, turbines, etc.
- Pressure vessel, storage tank, and piping inspections are conducted using eddy current inspection in oil/storage tank terminals.