A focused study companion for API 571 — damage mechanisms affecting fixed equipment in the refining and petrochemical industry. Built for engineers preparing for the exam, not for casual browsing.
Blistering, HIC, SOHIC in carbon steel exposed to aqueous H₂S environments.
Cracking adjacent to welds in amine service, accelerated by residual stress.
High temperature hydrogen attack — internal decarburization and fissuring.
Localized thinning in high-velocity, high-temperature crude distillation streams.
Corrosion under insulation — hidden wall loss driven by trapped moisture cycles.
High-temperature reaction between sulfur compounds and steel surfaces.
Short quiz sets per damage mechanism — susceptible materials, affected units, appearance, prevention.
Full-length practice sets that mirror the real exam's pacing and question style.
Flags the mechanisms you keep missing so review time goes where it's needed.