TOFD is an advanced ultrasonic testing method in which flaw height and depth are determined with high accuracy from the ultrasonic waves diffracted at the tips of discontinuities within a weld.
Used together with PAUT, particularly on thick-walled pressure vessels, pipelines and critical weld applications, it provides high reliability.
Typical Applications
- Thick-walled weld inspection
- Pressure vessel and pipe welds
- Crack height measurement
- In-service crack monitoring
- Combined PAUT + TOFD inspection packages
Why TOFD (Time-of-Flight Diffraction)?
- Excellent crack-height sizing accuracy
- Fast, single-pass volumetric coverage
- Orientation-independent flaw detection
- Recordable digital data set
Standards & Codes We Work To
EN ISO 10863EN ISO 15626ASME BPVC Section V, Article 4EN ISO 16828