API RP 581 - 3rd Ed.2016 - Add.2-2020 - Risk-Based Inspection Methodology

5.8 Figures ........................................................................................................................................... 42
6 STRESS CORROSION CRACKING (SCC) DF—CAUSTIC CRACKING ............................................ 43
6.1 Scope ............................................................................................................................................. 43
6.2 Description of Damage ................................................................................................................ 43
6.3 Screening Criteria ......................................................................................................................... 43
6.4 Required Data ............................................................................................................................... 43
6.5 Basic Assumptions ...................................................................................................................... 43
6.6 Determination of the DF ............................................................................................................... 44
6.6.1 Overview ................................................................................................................................ 44
6.6.2 Inspection Effectiveness ..................................................................................................... 44
6.6.3 Calculation of the DF ............................................................................................................ 44
6.7 Nomenclature ................................................................................................................................ 45
6.8 References .................................................................................................................................... 45
6.9 Tables ............................................................................................................................................ 45
6.10 Figures ........................................................................................................................................... 47
7 SCC DF—AMINE CRACKING .............................................................................................................. 50
7.1 Scope ............................................................................................................................................. 50
7.2 Description of Damage ................................................................................................................ 50
7.3 Screening Criteria ......................................................................................................................... 51
7.4 Required Data ............................................................................................................................... 51
7.5 Basic Assumptions ...................................................................................................................... 51
7.6 Determination of the DF ............................................................................................................... 51
7.6.1 Overview ................................................................................................................................ 51
7.6.2 Inspection Effectiveness ..................................................................................................... 51
7.6.3 Calculation of the DF ............................................................................................................ 51
7.7 Nomenclature ................................................................................................................................ 52
7.8 References .................................................................................................................................... 52
7.9 Tables ............................................................................................................................................ 52
7.10 Figures ........................................................................................................................................... 54
8 SCC DF—SULFIDE STRESS CRACKING (SSC) ................................................................................ 55
8.1 Scope ............................................................................................................................................. 55
8.2 Description of Damage ................................................................................................................ 55
8.3 Screening Criteria ......................................................................................................................... 55
8.4 Required Data ............................................................................................................................... 55
8.5 Basic Assumptions ...................................................................................................................... 55
8.6 Determination of the DF ............................................................................................................... 56
8.6.1 Overview ................................................................................................................................ 56
8.6.2 Inspection Effectiveness ..................................................................................................... 56
8.6.3 Calculation of the DF ............................................................................................................ 56
8.7 Nomenclature ................................................................................................................................ 57
8.8 References .................................................................................................................................... 57
8.9 Tables ............................................................................................................................................ 57
8.10 Figures ........................................................................................................................................... 59
9 SCC DF—HYDROGEN-INDUCED CRACKING AND STRESS-ORIENTED HYDROGEN-INDUCED
CRACKING IN HYDROGEN SULFIDE SERVICES (HIC/SOHIC-H2S) ....................................................... 60
9.1 Scope ............................................................................................................................................. 60
9.2 Description of Damage ................................................................................................................ 60
9.3 Screening Criteria ......................................................................................................................... 61