A welding defectA flaw, anomaly, or imperfection in a pipeline that could compromise its integrity, safety, or performance. Defects can vary in nature, size, and severity and c… that can occur during the fabrication or construction of pipelines, pressure vessels, and other equipment. It refers to an incomplete fusion between the base metal and the weldLocalized coalescence of metals produced by heating the materials to the welding temperature, with or without the application of pressure, or by the application… metal, resulting in a weak jointA single section (also pipe spool) of pipe that is circumferentially welded to form a pipeline.. Lack of fusionA welding defect that can occur during the fabrication or construction of pipelines, pressure vessels, and other equipment. It refers to an incomplete fusion be… can compromise the integrityThe capability of a pipeline to perform its intended function safely and reliably throughout its life. It includes a range of factors, including the structural … and strength of the pipeline, leading to potential leaks or failures.