Heat Checking

Formation of surface cracks formed by the rapid heating and cooling of the component.

Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global Standards


Heat Checking

A pattern of cracks on a metal surface caused by frictional heating followed by rapid quench cooling.

Source: API RP 96, Deepwater Well Design and Construction, First Edition, March 2013. Global Standards


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