API
API 571
Damage Mechanisms Affecting Fixed Equipment in the Refining Industry
The reference for what actually goes wrong with process equipment: corrosion under insulation, chloride cracking, sulphidation, high temperature hydrogen attack, creep, embrittlement and many more, each with its critical factors, appearance and inspection methods.
This is an explanation, not the standard. PipingInspector is not affiliated with API and reproduces no part of the document. Always work to the current edition of the standard itself and to your project specification.
