Magnetic Flux Leakage (MFL) in Findlay, OH

MFL for Ohio’s Storage Tank Assets

Northwest Ohio’s industrial network connects refineries, terminals, processing facilities, and manufacturers to a busy pipeline system. In and around Findlay, reliable tank-floor condition data helps operators plan maintenance, support safe operations, and make informed decisions about continued service. Undetected internal or external corrosion can reduce floor thickness and create repair needs that are costly to address on an emergency schedule.

Magnetic Flux Leakage (MFL) offers a practical way to screen above-ground storage tank floors for areas of wall loss and pitting. Its mapped results help integrity teams prioritize follow-up evaluation and repairs, coordinate work with inspection planning, and document the basis for condition decisions. MFL is one part of a broader asset integrity program—not a substitute for required inspection scope or engineering evaluation.

How Magnetic Flux Leakage Works

MFL is a non-destructive testing and non-destructive examination (NDE) method based on changes in a magnetic field. An MFL scanner magnetizes the tank-floor plate as it travels across the surface in systematic passes. Where corrosion or metal loss interrupts the magnetic field, sensors detect the resulting leakage and record the response.

Inspection software turns those readings into a location-based, often color-coded corrosion map. The map helps the inspection team identify areas that may warrant repair, additional examination, or engineering review. Because MFL is a screening technique, signal interpretation and follow-up decisions should account for factors such as plate condition, surface features, access, and the inspection procedure. Where confirmation is needed, the owner and qualified inspection personnel can determine appropriate complementary examination or measurements.

The process does not require cutting the tank floor or removing samples. As with any non-destructive testing method, reliable results depend on suitable equipment, controlled scanning, qualified personnel, and clear reporting. Inspection planning should address tank preparation, surface accessibility, operating status, and the owner’s applicable safety and entry requirements.

What TechCorr’s Findlay Team Delivers

TechCorr supports storage tank inspection and asset integrity work from Findlay, with the ability to mobilize across Ohio’s refining, pipeline, and manufacturing sectors. For an MFL project, our team works with the facility to understand the tank, inspection objectives, schedule, and site requirements before mobilization. The scope can include systematic floor scanning, recorded readings, anomaly mapping, and reporting that gives integrity personnel a usable basis for next steps.

Our local office strengths in conventional NDE, API 653 storage tank inspection, and pipeline NDE help connect MFL findings to the wider inspection picture. When an MFL map identifies areas of concern, TechCorr can coordinate relevant NDE support and inspection expertise as defined by the project scope. This can help teams organize follow-up, maintenance windows, and repair planning without treating a screening result as a final fitness-for-service determination.

Deliverables and scope are established for each project. A useful report should make findings understandable and traceable, supporting communication among inspection, engineering, operations, and maintenance teams. TechCorr’s goal is to provide field execution and documentation that fit the facility’s integrity workflow and help decision-makers focus resources where they are needed.

Standards, Qualifications, and Inspection Planning

Tank-floor MFL work should be planned within the owner’s applicable inspection program and governing requirements. API 653 is the key standard among those listed for in-service inspection, repair, alteration, and reconstruction of aboveground storage tanks. API 510 addresses pressure vessel inspection, while API 570 covers in-service inspection, rating, repair, and alteration of piping systems; they may be relevant to a facility’s broader asset integrity program, but they do not replace API 653 requirements for tank inspection.

Personnel qualification and written procedures matter. ASNT guidance and applicable employer qualification practices can inform the qualification of NDT personnel and the oversight of examination activities. NACE/AMPP standards and practices may also be relevant to corrosion management and protective-coating considerations, depending on the asset and project scope. ISO requirements may apply through a facility’s quality, safety, or management systems. The applicable editions, contract documents, owner specifications, and jurisdictional requirements should be confirmed for each job; no single standard automatically defines every MFL project.

Before mobilization, align the inspection objectives, tank preparation, access, safety controls, scan coverage, reporting expectations, and any required complementary examination. That coordination helps ensure the resulting NDE data is interpreted in context and supports responsible maintenance decisions.

Why TechCorr Findlay

TechCorr combines local mobilization with experience across conventional NDE, storage tank inspection, and pipeline NDE. From Findlay, our team is positioned to serve facilities throughout Ohio’s Buckeye State industrial and pipeline network, helping operators coordinate inspection support around real site conditions and schedules.

Need Magnetic Flux Leakage (MFL) for an above-ground storage tank in Findlay or elsewhere in Ohio? Contact TechCorr to discuss your tank, inspection objectives, schedule, and reporting needs. We’ll help define a practical scope and coordinate the NDT and asset integrity support your facility requires.