Ibr inspeccion basada en riesgos

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Chapter Contents

1. THINNING TECHNICAL MODULE SUPPLEMENTS 1.6

1.1 Screening Questions for Technical Supplements 1.6

1.2 Thinning Supplement A – Corrosion Under Insulation (CUI) 1.7

1.2.1 Description of Damage 1.7

1.2.2 Basic Data 1.8

1.2.3 Determination of Hydrochloric Acid Corrosion Rate 1.9

1.3 Thinning Supplement B - High Temperature Sulficid andNaphthenic Acid Corrosion 1.14

1.3.1 Description of Damage 1.14

1.3.2 Basic Data 1.17

1.3.3 Determination of High Temperature Sulfidic and Naphthenic Acid Corrosion Rate 1.17

1.4 Thinning Supplement C – High Temperature H2S/H2 Corrosion 1.28

1.4.1 Description of Damage 1.28

1.4.2 Basic Data 1.29

1.4.3 Determination of High Temperature H2S/H2 Corrosion Rate1.30

1.5 Thinning Supplement D – Sulfuric Acid (H2SO4) Corrosion 1.35

1.5.1 Description of Damage 1.35

1.5.2 Basic Data 1.36

1.5.3 Determination of Maximum Estimated Corrosion Rate 1.37

1.6 Thinning Supplement E – Hydrofluoric Acid (HF) Corrosion 1.43

1.6.1 Description of Damage 1.43

1.6.2 Basic Data 1.44

1.6.3 Determination of Estimated CorrosionRates 1.45

1.7 Thinning Supplement F – Sour Water Corrosion 1.48

1.7.1 Description of Damage 1.48

1.7.2 Basic Data 1.49

1.7.3 Determination of Sour Water Corrosion Rate 1.49

1.8 Thinning Supplement G – Amine Corrosion 1.51

1.8.1 Description of Damage 1.51

1.8.2 Basic Data 1.53

1.8.3 Determination of Amine Corrosion Rate 1.54

1.9 ThinningSupplement H – High Temperature Oxidation 1.59

1.9.1 Description of Damage 1.59

1.9.2 Basic Data 1.59

1.9.3 Determination of Estimated Corrosion Rates for High Temperature Oxidation 1.60

2. External Corrosion Technical Module Supplements 1.62

2.1 External Damage Supplement A – External Corrosion for Carbon and Low Alloy Steels 1.62

2.1.1 Basic Data 1.632.1.2 Basic Assumptions and Methods 1.64

2.1.3 External Corrosion for Carbon and Low Alloy Steels Inspection Categories 1.65

2.1.4 Determination of Technical Module Subfactor 1.65

2.2 External Damage Supplement B – CUI for Carbon and Low Alloy Steels 1.67

2.2.1 Basic Data 1.69

2.2.2 Basic Assumptions 1.70

2.2.3 Inspection Effectiveness 1.71

2.2.4Determination of Technical Module Subfactor 1.72

2.3 External Damage Supplement C – External SCC for Austenitic Stainless Steels 1.75

2.3.1 Basic Data – Inputs (Database Fields) 1.75

2.3.2 Basic Assumptions 1.76

2.3.3 Inspection Effectiveness 1.77

2.3.4 Determination of Technical Module Subfactor 1.78

2.4 External Damage Supplement D – External CUI SCC for AusteniticStainless Steels 1.80

2.4.1 Basic Data – Inputs (Database Fields) 1.81

2.4.2 Basic Assumptions 1.82

2.4.3 Inspection Effectiveness 1.83

2.4.4 Determination of Technical Module Subfactor 1.84

3. Stress Corrosion Cracking Technical Module Supplements 3.87

3.1 Screening Question for Technical Supplements 3.87

3.2 SCC Supplement A – Caustic Cracking 3.883.2.1 Description of Damage 3.88

3.2.2 Basic Data 3.89

3.2.3 Determination of Susceptibility to Caustic Cracking 3.89

3.3 SCC Supplement B. Amine Cracking 3.92

3.3.1 Description of Damage 3.92

3.3.2 Basic Data 3.94

3.3.3 Determination of Susceptibility to Amine Cracking 3.95

3.4 SCC Supplement C – Sulfide Stress Cracking 3.96

3.4.1 Descriptionof Damage 3.96

3.4.2 Basic Data 3.97

3.4.3 Determination of Environmental Severity 3.98

3.4.4 Determination of Susceptibility to SSC 3.98

3.5 SCC Supplement D – Hydrogen-Induced Cracking and Stress-Oriented Hydrogen Induced Cracking in Hydrogen Sulfide Services (HIC/SOHIC) 3.100

3.5.1 Description of Damage 3.100

3.5.2 Basic Data 3.102

3.5.3...
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