Fabrication, quality, inspection and safety

NDT inspection

NDT inspection – interactive engineering module focused on NDT weld inspection. Learning format: Interactive module · Active learning. Explains the principle, technical relationships and practical use.

Interactive moduleActive learning
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Topic overview

NDT complements metallurgy, WPS/WPQR qualification and ISO 5817. It does not merely state that “the weld looks good”; it helps determine whether the joint is acceptable for the required quality level, structural application and failure risk.

In practice, the method is selected not only by imperfection name, but also by material, thickness, joint geometry, accessibility, standard requirements and quality level B/C/D.

Principle: inspection of the weld surface, geometry and visible imperfections with the unaided eye or visual aids.

Principle: penetrant enters a surface-breaking imperfection and, after development, produces an indication.

What the module covers

  • NDT of welds — non-destructive testing and examination
  • Why NDT belongs in WeldScope
  • Typical inspection sequence
  • Visual testing — VT
  • Penetrant testing — PT
  • Magnetic particle testing — MT
  • Ultrasonic testing
  • Radiographic testing — RT
Educational content does not replace current standards, approved WPS/WPQR documentation or decisions by competent welding coordination personnel.

Related engineering terms

The module connects these terms with practical engineering explanations:

NDT weld inspectionVTPTMTUTRT