ASME B31G 2023

$98.04

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

Published By	Publication Date	Number of Pages
ASME	2023	82

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Description

This document is intended solely for the purpose of providing guidance in the evaluation of metal loss in pressurized pipelines and piping systems. It is applicable to all pipelines and piping systems within the scope of the transportation pipeline codes that are part of ASME B31 Code for Pressure Piping, namely: ASME B31.4, Pipeline Transportation Systems for Liquid Hydrocarbons and Other Liquids; ASME B31.8, Gas Transmission and Distribution Piping Systems; ASME B31.11, Slurry Transportation Piping Systems; and ASME B31.12, Hydrogen Piping and Pipelines, Part PL. Where the term “pipeline” is used, it may also be read to apply to piping or pipe conforming to the acceptable applications and within the technical limitations discussed below.

PDF Catalog

PDF Pages	PDF Title
4	CONTENTS
6	FOREWORD
7	ASME B31 COMMITTEE ROSTER
8	CORRESPONDENCE WITH THE B31 COMMITTEE
10	ASME B31G-2023 SUMMARY OF CHANGES
12	1 INTRODUCTION 1.1 Scope 1.2 Acceptable Applications 1.3 Exclusions 1.4 Additional Considerations
13	1.5 Nomenclature 1.6 Analysis Level 1.7 Material Properties and Other Data
14	1.8 Evaluation Procedure 1.9 Safety Factors and the Meaning of Acceptance
15	1.10 Software 1.11 Accuracy 1.12 Flaw Interaction 1.13 Flaw Orientation
16	2 EVALUATION METHODS 2.1 Level 0 Evaluation Figures Figure 1.12-1 Corrosion Pit Interaction Distances
17	Figure 1.13-1 Helically Oriented Corrosion Pattern Figure 2.1-1 Corrosion Parameters Used in Analysis
18	2.2 Level 1 Evaluation 2.3 Level 2 Evaluation
19	2.4 Level 3 Evaluation 3 TABLES OF ALLOWABLE LENGTH OF CORROSION
20	Tables Table 3-1 Values of L for Pipe Sizes ≥NPS 2 and <NPS 6 Table 3-1M Values of L for Pipe Sizes ≥60 mm and <168 mm O.D.
21	Table 3-2 Values of L for Pipe Sizes ≥NPS 6 and <NPS 10
22	Table 3-2M Values of L for Pipe Sizes ≥168 mm and <273 mm O.D.
23	Table 3-3 Values of L for Pipe Sizes ≥NPS 10 and <NPS 16
24	Table 3-3M Values of L for Pipe Sizes ≥273 mm and <406 mm O.D.
25	Table 3-4 Values of L for Pipe Sizes ≥NPS 16 and <NPS 20
27	Table 3-4M Values of L for Pipe Sizes ≥406 mm and <508 mm O.D.
29	Table 3-5 Values of L for Pipe Sizes ≥NPS 20 and <NPS 24
31	Table 3-5M Values of L for Pipe Sizes ≥508 mm and <610 mm O.D.
33	Table 3-6 Values of L for Pipe Sizes ≥NPS 24 and <NPS 30
35	Table 3-6M Values of L for Pipe Sizes ≥610 mm and <762 mm O.D.
37	Table 3-7 Values of L for Pipe Sizes ≥NPS 30 and <NPS 36
39	Table 3-7M Values of L for Pipe Sizes ≥762 mm and <914 mm O.D.
41	Table 3-8 Values of L for Pipe Sizes ≥NPS 36 and <NPS 42
43	Table 3-8M Values of L for Pipe Sizes ≥914 mm and <1 066mm O.D.
45	Table 3-9 Values of L for Pipe Sizes ≥NPS 42 and <NPS 48
49	Table 3-9M Values of L for Pipe Sizes ≥1 066 mm and <1 219 mm O.D.
53	Table 3-10 Values of L for Pipe Sizes ≥NPS 48 and <NPS 52
56	Table 3-10M Values of L for Pipe Sizes ≥1 219 mm and <1 320 mm O.D.
59	Table 3-11 Values of L for Pipe Sizes ≥NPS 52 and <NPS 56
63	Table 3-11M Values of L for Pipe Sizes ≥1 320 mm and <1 422 mm O.D.
67	Table 3-12 Values of L for Pipe Sizes ≥NPS 56 Through NPS 60
71	Table 3-12M Values of L for Pipe Sizes ≥1 422 mm Through 1 524 mm O.D.
75	NONMANDATORY APPENDIX A SAMPLE CALCULATIONS A-1 INTRODUCTION A-2 EXAMPLE 1
76	Figure A-2-1 Pitting Arrangement for Example Problem Figure A-2-2 Cross Section of Pitting for Example Problem A-3 EXAMPLE 2 A-4 EXAMPLE 3
77	Table A-4-1 Example Metal Loss Calculation Parameters A-5 Example 4 A-6 Example 5
78	Table A-6-1 Comparison of Examples 4 and 5 Metal Loss Calculation Parameters