This ultrasonic inspection technique is commonly performed on welds and weld overlays, piping,
pressure vessels, clad material, storage tanks and structural steel. As fabricated heavy wall vessels and
piping can be thoroughly assessed for fabrication flaws with TOFD.
Application
To verify compliance with fabrication requirements for piping and vessels in accordance to standards such as:
- ASME Section I, Code Case 189, or ASME VIII Division 1 and 2.
- For in-service defect monitoring.
- For detecting defects during the manufacturing process
Advantages
- High degree of repeatability
- Position and size data for every flaw can be compared for repeat scans of the same area to track flaw growth or corrosion rates both generally and for individual pits
- Not limited by defect orientation
- Precise defect sizing capability
- Sensitive to all kinds of defects
- Portable, battery operated testing device
- On-line, volume inspection
- Very fast scanning
- Set-up independent of weld configuration
- Amplitude insensitive, acoustical coupling less critical
Personnel Qualifications
Our inspectors are highly qualified, holding certifications at Level 2 in accordance with the SNT TC 1A system. In both UT and TOFD techniques.
This qualification process ensures that our personnel possess the necessary knowledge, skills, and expertise to perform TOFD testing.
Equipment
Equipped with following equipment :
- SIUI SYNCSCAN 3 (up to 04 TOFD channels)
- SIUI probes and wedges collection for inspection of a large range of welding configuration and materiel.
- CPS 02A Chain scanner for PAUT and/or TOFD inspection
- Calibration and validation blocs for different materials, application and thickness range