What is NDT
Non-Destructive Testing NDT allows inspection of internal and external defects without damaging the component. This is essential for quality assurance in critical applications.
Method Comparison
Ultrasonic Testing UT
Best for: Internal discontinuities thickness measurement
Advantages: Works on thick sections detects deep flaws
Limitations: Requires skilled operator surface must be accessible
Radiography Testing RT
Best for: Internal voids cracks weld quality
Advantages: Permanent image record excellent for complex geometries
Limitations: Radiation safety required expensive equipment
Magnetic Particle Testing MT
Best for: Surface and near-surface cracks in ferrous materials
Advantages: High sensitivity to surface flaws real-time results
Limitations: Only works on ferromagnetic materials
Choosing the Right Method
| Material Type | Best Method |
|---|---|
| SteelAluminum | All methods viable |
| Cast Iron | UT RT preferred |
| Welded Joints | RT MT for surface |
| Thick Sections | UT |
| Surface Cracks | MT |
Combined Approach
Many projects benefit from using multiple NDT methods:
- MT for surface crack detection
- UT for internal flaw sizing
- RT for comprehensive internal imaging
Standards Compliance
All our NDT services follow:
- ASTM standards
- ASNT guidelines
- NABL accreditation requirements
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Need NDT services for your project Contact Sohm Analytical for certified non-destructive testing.