Ultrasonic testing uses short ultrasonic pulse waves to detect internal flaws in materials, or to determine the thickness of materials. This technique is used during most inspections and can be applied to almost every asset.
We regularly use ultrasonics on the following:
- Storage Tanks – the floor, shell, roof, sump, nozzles etc.
- Pipelines – typically each spool is tested at various points, with a priority given to bends and other high risk areas
- Boiler Tubes – each tube can be tested on each side at various locations along the tube to determine overall condition
- Heat Exchangers – IRIS can be used to determine precise thickness values in tubing and give wall loss percentages, distinguishing between I.D and O.D defects
- Pressure Vessels – shell plates, end plates, nozzles, etc.
Ultrasonic testing can be used through a variety of mediums, and although copes with surface conditions well compared to other techniques, there needs to be a good contact between the transducer and the material being tested.
A high amount of surface roughness can reduce the energy being transmitted, resulting in a loss of received amplitude and reduction in detection capacity.
Surface coatings such as thin foams are generally transparent to ultrasonics, however thick foams can cause a surface reflections, so should be removed prior to testing.
Shear Wave Ultrasonics
We also provide Shear Wave Ultrasonics which can be used to look for weld defects beneath the surface such as porosity, slag inclusions, lack of fusion, lack of penetration and cracking. Shear wave is often used an alternative to radiography.
You will receive a comprehensive inspectors report detailing results and the findings of the inspection. The standard of our reports is just one of the things that makes us stand out in the industry.
If you would like to discuss your NDT inspection project, would like to see a sample report, or to arrange an initial no-obligation meeting, call us on 01469 541 586 or complete our contact form below: