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Find out morePinhole & Pitting Corrosion Inspection
Accurately addressing and measuring metal loss
High-Resolution Pinhole and Pitting Metal Loss Inspection
Pipeline operators have long identified pinhole and especially embedded pinhole defects as a significant risk factor in their integrity management programs. NDT Global, a leading supplier of ultrasonic pipeline inspection and pipeline integrity management services, announced that it is now offering a high-resolution pinhole and pitting (UMp) metal loss inspection service to help operators mitigate such risks.
The UMp service reliably detects defects and sizes as small as 5 mm (0.2 in) which represents a two-fold improvement in the minimum sizing threshold, from the previous entry level ultrasonic service of 10 mm (0.4 in), and it will be a standard offering in all of the NDT Global markets.
While many inline inspection (ILI) providers still offer corrosion inspections these are without the resolution required to detect and size pinhole defects, with some ultrasonic services only reliably detecting features greater than 10 mm (0.4 in) and sizing features greater than 20 mm (0.8 in). Higher-resolution inspection of features identifies the true deepest point of a pinhole morphology within a larger area of corrosion with an overall shallower depth.
Using high resolution tools one can detect and size tiny corrosion spots pinholes with dimension < 10 mm (<0.39 in) even in welds. Using the higher-resolution robots, however, such defects are nowadays found quite frequently.

Our Ultrasonic Tools
EVO Series UMP
NDT Global offers high-resolution pinhole and pitting (UMp) metal loss inspection service as standard.
The UMp service reliably detects defects and sizes as small as 5 mm (0.2 in) diameter, which represents a two-fold improvement in the minimum sizing threshold, from the previous entry level ultrasonic service of 10 mm (0.4 in).
Read More About ItUltrasonic Corrosion Inspection
Detection of corrosion features with a diameter of 5 mm (0.2 in) reaches a probability of detection level (POD) of more than 90%. Classification and depth sizing is provided for all metal loss defects from 5 mm (0.19 in) on wards. High-resolution river bottom profiles enable accurate defect assessments.
Resources
Evo Series 1.0 UMp
Pipeline integrity plays a critical role in the overall success of your business. Anomalies such as corrosion and…
Pinhole in Girth Weld
Pipeline operators have long identified pinhole and especially embedded pinhole defects as a significant risk factor…
Keeping up With Corrosion
Christoph Jäger and Andreas Pfanger, NDT Global Germany, explain why monitoring pipeline corrosion is critical to…