AUTRESONUS
UT

Conventional Ultrasonic Testing

Reliable pulse-echo ultrasonic inspection for thickness measurement and internal flaw detection in critical components.

Overview

Conventional Ultrasonic Testing (UT) is a proven NDT method that uses high-frequency sound waves to detect internal discontinuities and measure remaining wall thickness without damaging the component. It remains one of the fastest and most versatile inspection techniques for pressure equipment, pipelines, and welded structures.

How the method works

In pulse-echo UT, a transducer introduces sound into the material and receives reflected signals from interfaces such as back walls, laminations, and discontinuities. Time-of-flight and signal behavior are interpreted to determine depth and location of indications.

UT is highly adaptable: straight-beam probes are ideal for thickness surveys and lamination checks, while angle-beam probes target weld defects such as lack of fusion, cracks, and inclusions. This flexibility makes UT suitable for both fabrication QA and in-service integrity assessments.

With modern digital flaw detectors and calibrated procedures, UT delivers repeatable, code-compliant data that supports fitness-for-service decisions and maintenance planning while avoiding radiation controls associated with RT.

Why AUTRESONUS for UT

  • Certified Level II and Level III UT personnel with extensive field experience.
  • Procedure-based inspections aligned to code and project-specific acceptance criteria.
  • Calibrated equipment and documented reference standards for every inspection scope.
  • Clear engineering-focused reporting with indication sizing and location mapping.
  • Integrated delivery with PAUT, TOFD, and corrosion mapping where needed.

Key Benefits

  • Rapid internal defect detection and accurate depth positioning
  • Precise wall-thickness measurement for corrosion monitoring
  • Applicable across broad thickness ranges and component geometries
  • Portable field deployment with minimal operational disruption
  • No radiation exclusion zones required
  • Permanent digital reporting and traceable inspection records

Our Inspection Process

  1. 1

    Scope and procedure review

    Confirm component details, applicable code, and required inspection coverage.

  2. 2

    Calibration

    Set sensitivity and range on representative reference blocks before inspection.

  3. 3

    Scanning

    Perform systematic straight-beam and/or angle-beam examination per approved procedure.

  4. 4

    Evaluation

    Characterize indications by depth, length, and response behavior against acceptance criteria.

  5. 5

    Reporting

    Issue code-based accept/reject results with traceable inspection data and recommendations.

Applications

  • Pressure vessel shell and weld inspections
  • Pipeline thickness and weld integrity checks
  • Storage tank shell plate examinations
  • Forgings, plates, and rolled product lamination detection
  • In-service corrosion and erosion monitoring
  • Pre-shutdown and turnaround inspection campaigns

Codes & Standards

ASME V Article 4 ISO 16810 ISO 17640 ASTM E164 AWS D1.1

Need accurate inspection data?

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