Inspection
Work Planning
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The rate at which material thickness is lost due to corrosion over a specified period of time.
Corrosion Rate is the measured or calculated rate of material loss resulting from corrosion processes, typically expressed as millimetres per year (mm/y), mils per year (mpy) or similar engineering units. It is a key parameter used to estimate remaining life, establish inspection intervals and assess equipment integrity.
Accurate corrosion rate calculations support integrity management, inspection planning and remaining life assessments while helping optimize maintenance and replacement decisions.
Corrosion rates may be determined from repeated thickness measurements, corrosion coupons, online monitoring systems or predictive engineering assessments, and may vary significantly depending on operating conditions and damage mechanisms.
Corrosion Rate describes the speed of material degradation, whereas Corrosion Allowance represents the design margin provided to accommodate that expected material loss.
Mechanical Integrity; Corrosion; Reliability Engineering; Inspection & NDT.
Remaining life calculations.; Risk-Based Inspection.; Corrosion monitoring.; Inspection planning.; Integrity assessments.
API RP 571; API RP 581
VisualAIM connects glossary concepts to the asset records, inspection histories, and workflows they describe.
