What type of integrity test is performed after welding pipe?

A visual test is an important method for assessing the integrity of welded joints, particularly in piping systems. This non-destructive examination is often performed to identify surface flaws, such as cracks, overlaps, and insufficient weld penetration. During the visual test, inspectors look for obvious defects that can compromise the structural integrity of the weld.

It is typically the first step after welding because it allows for quick detection of issues that can easily be seen without requiring any advanced equipment. The visual inspection also serves as a preliminary evaluation that can inform the need for more detailed testing methods, such as ultrasonic or radiographic tests, particularly if there are indications of potential defects observed during the visual assessment.

While pressure tests, ultrasonic tests, and radiographic tests are all valid methods for checking the integrity of welds, they are typically used for more in-depth assessments or specific circumstances, whereas the visual test is an immediate and straightforward approach following the welding process.