Magnetic flux leakage (MFL)
Magnetic flux leakage (MFL) is a fast inspection technique, suitable for measuring wall loss and detecting sharp defects such as pitting, grooving, and circumferential cracks. MFL is effective for aluminum-finned carbon steel tubes, because the magnetic field is almost completely unaffected by the presence of such fins.
We also carry out storage tanks bottom floor scan by MFL, for detecting corrosion at the legs and underside. All metal losses and pitting observed and suspected areas shall be cross checked later by Ultrasonic scanning for detailed investigation for measurement of depth and size.