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eLibrary > ASME B31G-2023 Manual for Determining the Remaining Strength of Corroded Pipelines >

ASME B31G-2023 Manual for Determining the Remaining Strength of Corroded Pipelines, 2023

CONTENTS
FOREWORD
ASME B31 COMMITTEE ROSTER
CORRESPONDENCE WITH THE B31 COMMITTEE
ASME B31G-2023 SUMMARY OF CHANGES
1 INTRODUCTION [Go to Page]
1.1 Scope
1.2 Acceptable Applications
1.3 Exclusions
1.4 Additional Considerations
1.5 Nomenclature
1.6 Analysis Level
1.7 Material Properties and Other Data
1.8 Evaluation Procedure
1.9 Safety Factors and the Meaning of Acceptance
1.10 Software
1.11 Accuracy
1.12 Flaw Interaction
1.13 Flaw Orientation
2 EVALUATION METHODS [Go to Page]
2.1 Level 0 Evaluation
2.2 Level 1 Evaluation
2.3 Level 2 Evaluation
2.4 Level 3 Evaluation
3 TABLES OF ALLOWABLE LENGTH OF CORROSION
Figures [Go to Page]
Figure 1.12-1 Corrosion Pit Interaction Distances
Figure 1.13-1 Helically Oriented Corrosion Pattern
Figure 2.1-1 Corrosion Parameters Used in Analysis
Figure A-2-1 Pitting Arrangement for Example Problem
Figure A-2-2 Cross Section of Pitting for Example Problem
Tables [Go to Page]
Table 3-1 Values of L for Pipe Sizes ≥NPS 2 and
Table 3-1M Values of L for Pipe Sizes ≥60 mm and <168 mm O.D.
Table 3-2 Values of L for Pipe Sizes ≥NPS 6 and
Table 3-2M Values of L for Pipe Sizes ≥168 mm and <273 mm O.D.
Table 3-3 Values of L for Pipe Sizes ≥NPS 10 and
Table 3-3M Values of L for Pipe Sizes ≥273 mm and <406 mm O.D.
Table 3-4 Values of L for Pipe Sizes ≥NPS 16 and
Table 3-4M Values of L for Pipe Sizes ≥406 mm and <508 mm O.D.
Table 3-5 Values of L for Pipe Sizes ≥NPS 20 and
Table 3-5M Values of L for Pipe Sizes ≥508 mm and <610 mm O.D.
Table 3-6 Values of L for Pipe Sizes ≥NPS 24 and
Table 3-6M Values of L for Pipe Sizes ≥610 mm and <762 mm O.D.
Table 3-7 Values of L for Pipe Sizes ≥NPS 30 and
Table 3-7M Values of L for Pipe Sizes ≥762 mm and <914 mm O.D.
Table 3-8 Values of L for Pipe Sizes ≥NPS 36 and
Table 3-8M Values of L for Pipe Sizes ≥914 mm and <1 066mm O.D.
Table 3-9 Values of L for Pipe Sizes ≥NPS 42 and
Table 3-9M Values of L for Pipe Sizes ≥1 066 mm and <1 219 mm O.D.
Table 3-10 Values of L for Pipe Sizes ≥NPS 48 and
Table 3-10M Values of L for Pipe Sizes ≥1 219 mm and <1 320 mm O.D.
Table 3-11 Values of L for Pipe Sizes ≥NPS 52 and
Table 3-11M Values of L for Pipe Sizes ≥1 320 mm and <1 422 mm O.D.
Table 3-12 Values of L for Pipe Sizes ≥NPS 56 Through NPS 60
Table 3-12M Values of L for Pipe Sizes ≥1 422 mm Through 1 524 mm O.D.
Table A-4-1 Example Metal Loss Calculation Parameters
Table A-6-1 Comparison of Examples 4 and 5 Metal Loss Calculation Parameters
NONMANDATORY APPENDIX A SAMPLE CALCULATIONS [Go to Page]
A-1 INTRODUCTION
A-2 EXAMPLE 1
A-3 EXAMPLE 2
A-4 EXAMPLE 3
A-5 Example 4
A-6 Example 5 [Go to Page]

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