What type of defects should be noted during an inspection of steel pipes?

During an inspection of steel pipes, it is essential to identify defects that could impact the pipe's structural integrity and functionality. Abrasions and punctures are critical defects to note because they can significantly compromise the pipe's ability to contain fluids safely under pressure. These types of damage may lead to leaks or catastrophic failures if not addressed promptly.

Visible scratches, while potentially concerning, do not necessarily indicate a failure point unless they are deep enough to affect the metal's strength. Pipe color changes might indicate corrosion or chemical reactions but are less specific compared to tactile evidence of abrasions or punctures. Surface dust is not a defect but rather an environmental factor and typically does not affect the performance of the pipe itself. Thus, noting abrasions and punctures is crucial for maintaining the integrity and safety of steel piping systems.