UT

Ultrasonic Testing (UT)

Volumetric flaw detection and precise thickness measurement using high-frequency sound.

Ultrasonic Testing (UT) is an inspection method that uses high-frequency sound waves to non-destructively detect flaws within a material and to carry out thickness measurements. Cracks, porosity, laminations and similar internal defects can be precisely located with this method.

It is widely used in the quality control of welded fabrications, pipelines and thick metal components, delivering fast, reliable and highly accurate results.

Typical Applications

  • Weld seam inspection
  • Thickness measurement
  • Corrosion and erosion monitoring
  • Pressure vessel and boiler inspections
  • Pipeline and process piping inspection
  • Plate, forging, and casting inspections

Why UT (Ultrasonic Test)?

  • Detects internal flaws conventional surface methods miss
  • Single-sided access — no need to reach both faces
  • Immediate, quantitative thickness data
  • No radiation exclusion zone, unlike RT

Standards & Codes We Work To

EN ISO 10228-3EN ISO 12680EN ISO 16810EN ISO 17640ASME BPVC Section V, Article 4API 510 / API 570EN ISO 9712
FAQ

Frequently Asked Questions

Conventional UT uses a single fixed-angle probe; Phased Array (PAUT) electronically steers many elements to sweep multiple angles at once, giving faster coverage and an imaged, recordable result. We offer both and recommend the right tool per application.

Yes. Thickness and corrosion surveys are routinely performed on live, insulated and in-service equipment, making UT ideal for risk-based and online integrity programs.

Typical steel ranges run from under 1 mm up to several hundred millimetres, with accuracy to ±0.1 mm on calibrated surfaces.

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