Magnetic Flux Leakage (MFL) Inspection

Code Steel Industrial Inspections offers Magnetic Flux Leakage (MFL) as an advanced nondestructive testing method for evaluating ferromagnetic materials. MFL is commonly used to inspect tank floors for plate loss, pitting, corrosion, and other defects without damaging the component being inspected.

Magnetic Flux Leakage testing provides inspectors with valuable information about the condition of steel and other ferromagnetic components, helping identify potential areas of concern before they lead to costly equipment failures or safety issues.

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How MFL Works

MFL uses a powerful magnetic field to saturate the material being inspected. When the magnetic field encounters corrosion, cracks, or areas of material loss, some of the magnetic flux escapes, or leaks from the surface. These leakage points indicate potential defects that require further evaluation.

Because MFL testing can identify changes in the magnetic field caused by defects beneath or at the surface of ferromagnetic materials, it is an effective nondestructive testing (NDT) method for evaluating the condition of steel components.

Advanced MFL Detection Technology

Specialized MFL probes contain highly sensitive magnetic detectors positioned between the poles of the magnet. As the inspection is performed, these sensors measure the magnetic leakage field created by imperfections in the material, allowing inspectors to accurately determine the location and severity of defects.

This advanced inspection technology can provide detailed information about potential corrosion, pitting, and material loss while allowing the inspected component to remain intact.

Benefits of MFL Inspections

  • Detects corrosion, pitting, cracks, and plate loss
  • Digital map of inspection
  • Provides accurate, nondestructive testing of ferromagnetic materials
  • Helps identify defects before they become costly failures
  • Ideal for inspecting tank floors

MFL inspections can be particularly valuable for storage tank floor inspection, where identifying corrosion and plate loss early can help facility owners and operators make informed decisions about maintenance, repairs, and continued equipment use.

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MFL Tank Floor Inspections

Magnetic Flux Leakage is commonly used for inspecting the floors of aboveground storage tanks and other steel structures where corrosion and metal loss can affect the integrity of the component. MFL testing can help locate areas that may require additional evaluation or follow-up inspection.

By identifying potential defects early, MFL testing can support proactive maintenance and help reduce the risk of unexpected equipment failures.

When Is Magnetic Flux Leakage Testing Used?

MFL testing is used when there is a need to evaluate ferromagnetic materials for corrosion, pitting, cracks, and material loss without damaging the component. It is especially useful for applications such as steel tank floor inspections where large areas need to be evaluated efficiently.

The results of an MFL inspection can help determine whether additional nondestructive testing or repairs may be necessary.

Protect Your Equipment with Magnetic Flux Leakage Inspections

Magnetic Flux Leakage (MFL) can help detect cracks, corrosion, material loss, and other defects before they become costly or dangerous. Contact Code Steel Industrial Inspections today to schedule an inspection and help keep your equipment operating safely, reliably, and in compliance with industry standards.

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Frequently Asked Questions About MFL Inspections

Magnetic Flux Leakage (MFL) testing is a nondestructive testing method used to identify defects such as corrosion, pitting, cracks, and plate loss in ferromagnetic materials. A magnetic field is applied to the material, and specialized sensors detect areas where magnetic flux escapes due to imperfections.

MFL inspection is commonly used to evaluate steel components, including storage tank floors, for corrosion, pitting, plate loss, and other potential defects. It allows inspectors to assess the condition of ferromagnetic materials without damaging them.

Yes. Magnetic Flux Leakage is a nondestructive testing (NDT) method. The inspection is designed to identify potential defects while leaving the inspected component intact.

Yes. MFL can detect indications associated with corrosion, pitting, cracks, and material loss in ferromagnetic materials. Detected indications may require additional evaluation to determine their severity and significance.

Yes. One of the primary applications of Magnetic Flux Leakage testing is tank floor inspection. MFL can help identify areas of corrosion and plate loss that may require further evaluation or repair.

When an MFL inspection identifies an indication, the area can be evaluated further to determine the nature and severity of the potential defect. Additional inspection methods may be appropriate depending on the material, application, and inspection findings.