Supplier's Category: All Non-Destructive Testing (NDT): X-ray, CT-scanning, and ultrasonic
Non-destructive testing (NDT) — X-ray, CT-scanning, ultrasonic — inspects a part’s internal structure or surface for defects without damaging or destroying it. It’s used both in production quality control and forensic failure investigation, wherever a part needs to be inspected but also needs to remain usable afterward.
NDT method choice depends heavily on the defect type and material being inspected, so match the technique to what you’re actually looking for.
- Confirm the method (X-ray, CT, ultrasonic, dye penetrant) is proven for your material and suspected defect type
- Ask about defect detection sensitivity/resolution relative to your acceptance criteria
- Check certification level of technicians (ASNT Level II/III) if your industry requires it
Related terms: X-ray inspection, CT scanning (industrial), ultrasonic testing (UT), dye penetrant inspection, magnetic particle inspection, ASNT certification levels, porosity detection, weld inspection NDT
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Where NDT gets used
NDT earns its cost specifically where a part can’t be sacrificed to verify its internal quality.
- Castings and welds: porosity and internal defect detection without destroying the part
- Aerospace and pressure vessels: mandatory inspection of safety-critical structures
- Failure investigation: examining a suspect part’s internals before deciding whether to cut it open