Which method can be used for non-destructive testing of boiler components?

Ultrasonic testing is a widely used method for non-destructive testing of boiler components. This technique employs high-frequency sound waves to detect imperfections or discontinuities within a material without causing any damage. By sending these sound waves into the material, a technician can analyze the reflected waves to determine the integrity of the components being tested. It is particularly effective for detecting flaws such as cracks, voids, and inclusions, making it essential for maintaining the safety and reliability of boiler systems.

In contrast, while temperature measuring can provide important operational data about a boiler, it does not serve as a method for testing the structural integrity of the components. Visual inspection, although a fundamental practice for identifying surface-level issues, is still limited and may not detect subsurface flaws. Pressure testing evaluates a boiler's ability to withstand internal pressures but can be considered more of a stress-test rather than a standard non-destructive evaluation method, as it can sometimes cause strain on the materials being tested.