Inspection Services

MFL & Corrosion Mapping

Magnetic Flux Leakage (MFL) testing is a widely used, Non-Destructive Testing (NDT) method for the detection of corrosion and pitting in steel structures. MFL is often used for integrity assessment of pipelines and storage tanks, but the principle can be applied to assets in any industrial sector. Al-MIQIA5 provides corrosion mapping and flaw mapping in large scale projects, MFL is used to detect metal loss defects (such as corrosion) and cracks in a wide range of settings. The basic principle behind MFL involves magnetizing a ferrous metal object to saturation level with a powerful magnetic field. Where the object has no flaws, the magnetic flux will remain undisturbed. Recognition from various inspection bodies and asset integrity engineers has resulted in phased array ultrasonic testing (PAUT) becoming the preferred technique for corrosion mapping. PAUT is widely used for the in-service detection and characterization of corrosion. Due to a larger footprint, PAUT probes can cover a larger surface at higher speeds leading to a significant time reduction and enhanced resolution. A successful corrosion mapping inspection is the result of the combination of a high probability of detection on corrosion damages like pitting, with the confidence that the full area of interest has been totally covered. Using Wheel Probe (WP-2) from SonaTest, and a group of professional inspectors, Al-Miqias proudly provides this service all over Iraq, applying on pipes, tanks, vessels, and other critical assets.