Definition(s)
Corrosion Rate
The rate of metal loss due to erosion, erosion/corrosion, or the chemical reaction(s) with the environment, either internal and/or external.
Source: API 510, Pressure Vessel Inspection Code: In-service Inspection, Rating, Repair, and Alteration, Tenth Edition, May 2014, with Addendum May 2017. Global Standards
Corrosion Rate
The rate of metal loss (e.g. reduction in thickness due to erosion, erosion/corrosion or the chemical reaction(s) with the environment, etc.) from internal and/or external damage mechanisms.
Source: API 570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems, Fourth Edition, February 2016, with Addendum May 2017. Global Standards
Corrosion Rate
The rate of metal loss due to the reaction(s) with its environment.
Source: API 510, Pressure Vessel Inspection Code: In-Service Inspection, Rating, Repair, and Alteration Downstream Segment, Ninth Edition, June 2006. Global Standards