ANSI/API 510

API 510 - Pressure Vessel Inspection Code: In-Service Inspection, Rating, Repair, and Alteration, Ninth Edition (Edition: 9th)

June, 2006

American Petroleum Institute
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This inspection code covers the in-service inspection, repair, alteration, and rerating activities for pressure vessels and the pressure- relieving devices protecting these vessels. This inspection code applies to most refining and chemical process vessels that have been placed in service. This includes: vessels constructed in accordance with an applicable construction code vessels constructed without a construction code (non-code)-A vessel not fabricated to a ecognized construction code and meeting no known recognized standard vessels constructed and approved as jurisdictional special based upon jurisdiction acceptance of particular design, fabrication, inspection, testing, and installation. non-standard vessels-A vessel fabricated to a recognized construction code but has lost it's nameplate or stamping.







Product Code(s): C51009,C51009


CONTENTS
Page
1 SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
1.1 General Application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.2 Specific Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.3 Recognized Technical Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
2 REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
3 DEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
4 OWNER/USER INSPECTION ORGANIZATION . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.2 Owner/user Organization Responsibilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
5 INSPECTION, EXAMINATION AND PRESSURE TESTING PRACTICES. . . . . 5-1
5.1 Inspection Plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.2 Risk-based Inspection (Rbi) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.3 Preparation For Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5.4 Inspection For Types Of Damage Modes Of Deterioration And Failure . . . . . . 5-3
5.5 General Types Of Inspection And Surveillance . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
5.6 Condition Monitoring Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
5.7 Condition Monitoring Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
5.8 Pressure Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
5.9 Material Verification And Traceability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
5.10 Inspection Of In-service Welds And Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
5.11 Inspection Of Flanged Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
6 INTERVAL/FREQUENCY AND EXTENT OF INSPECTION . . . . . . . . . . . . . . . 6-1
6.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.2 Inspection During Installation And Service Changes. . . . . . . . . . . . . . . . . . . . . 6-1
6.3 Risk-based Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.4 External Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.5 Internal And On-stream Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6.6 Pressure-relieving Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
7 INSPECTION DATA EVALUATION, ANALYSIS, AND RECORDING . . . . . . . 7-1
7.1 Corrosion Rate Determination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7.2 Remaining Life Calculations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7.3 Maximum Allowable Working Pressure Determination . . . . . . . . . . . . . . . . . . 7-2
7.4 Fitness For Service Analysis Of Corroded Regions . . . . . . . . . . . . . . . . . . . . . . 7-2
7.5 API RP 579 Fitness For Service Evaluations . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
7.6 Required Thickness Determination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
7.7 Evaluation Of Existing Equipment With Minimal Documentation . . . . . . . . . . 7-4
7.8 Reports And Records. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
8 REPAIRS, ALTERATIONS, AND RERATING OF PRESSURE VESSELS . . . . 8-1
8.1 Repairs And Alterations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8.2 Rerating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
v
CONTENTS
Page
9 ALTERNATIVE RULES FOR EXPLORATION AND PRODUCTION PRESSURE
VESSELS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
9.1 Scope And Specific Exemptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
9.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
9.3 Inspection Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
9.4 Pressure Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4
9.5 Safety Relief Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4
9.6 Records. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4
APPENDIX A ASME CODE EXEMPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
APPENDIX B INSPECTOR CERTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
APPENDIX C SAMPLE PRESSURE VESSEL INSPECTION RECORD. . . . . . . . . . C-1
APPENDIX D SAMPLE REPAIR, ALTERATION, OR RERATING OF
PRESSURE VESSEL FORM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
APPENDIX E TECHNICAL INQUIRIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-1
Tables
7-1 Values of Spherical Radius Factor K
1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
8-1 Welding Methods as Alternatives to Postweld Heat Treatment Qualification
Thickness for Test Plates and Repair Grooves . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
Figures
8-1 Rerating Vessels Using the Latest Edition or Addendum of the ASME Code
Allowable Stresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9

Product Replaces

Pressure Vessel Inspection Code: Maintenance Inspection, Rating, Repair, and Alteration - Includes Addenda 1, 2, 3 and 4 (1999, 2000, 2001, 2003) (Edition: 8th Edition)

Product is Related To

Recommended Practice for Fitness-for-Service (Edition: 1st)
API Recommended Practice 580, Risk-Based Inspection, First Edition (Edition: 1st)
Welding Inspection and Metallurgy, First Edition (Edition: 1st)