Overview of and Fitness-For-Service and API RP 579 *
New Joint API and ASME FFS Standard
Overview of API 579-1/ASME FFS-1
Balloting of API 579-1/ASME FFS-1
Technical Basis and Validation of API 579-1/ASME FFS-1
Relationships to Other FFS Standards
What’s next
Introduction
The first edition of API 579 produced by API CRE FFS Task Group is issued in 2000 and becomes the de facto international Fitness-For-Service (FFS) Standard for pressure containing equipment in the refining and petrochemical industries
ASME forms Post Construction Committee (PCC) to develop standards for in-service fixed equipment
FFS effort started under ASME PPC, existing API CRE Task Group continues to develop the next edition of API 579, many committee members are serving on both committees
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Joint API/ASME FFS Standards Committee
Joint API/ASME Committee formed, first meeting takes place on February 5, 2002
Polices and procedures manual developed covering
Charter
Organization
Officers
Membership
Meetings
Public Review and Submittal to ANSI
Interpretations
Appeals
Records
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Oversight by API CRE and ASME BPTCS
Membership
Regulatory/Jurisdictional
Insurance/Inspection
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New Joint API and ASME FFS Standard
API 579 will form the basis of the new joint API/ASME standard that will be produced by the API/ASME joint committee
The initial release of the new joint standard designated as API 579-1/ASME FFS-1 is scheduled for the second quarter of 2007
API 579-1/ASME FFS-1 2007 standard will include all topics currently contained in the first edition of API 579 and will also include new parts covering FFS assessment procedures that address unique damage mechanisms experienced by other industries
API 579-1/ASME FFS-1 2007 will supersede API 579-2000
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Overview of API 579-1/ASME FFS-1
Sections and Appendices in the API 579-2000 are being renamed to Parts and Annexes in API 579-1/ASME FFS-1 2007
New Enhancements – Existing Sections and New Parts
Part 5 - Assessment of Local Thin Areas, assessment procedures for gouges have been relocated to Part 12
Part 7 - Assessment of Blisters and HIC/SOHIC Damage, assessment procedures for HIC/SOHIC damage have been added
Part 8 - Assessment of Weld Misalignment and Bulges, assessment procedures for bulges removed, assessment procedures for dents, gouges, and dent-gouge combinations have been relocated to Part 12
Part 10 - Assessment of Equipment Operating in the Creep Range, assessment procedures for remaining life calculations for components with or without crack-like flaws have been added
Part 12 - Assessment of Dents, Gouges, and Dent-Gouge Combinations, new Part
Part 13 - Assessment of Laminations, new Part
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Annex B - Stress Analysis Overview for a FFS Assessment, complete rewrite to incorporate new elastic-plastic analysis methods and fatigue evaluation technology developed for the ASME Div 2 Re-write Project, Structural Stress/Master S-N Approach will be included
Annex C - Compendium of Stress Intensity Factor Solutions, new stress intensity factor solutions for thick wall cylinders, through wall cracks in cylinders and spheres, holes in plates
Annex E - Compendium of Residual Stress Solutions, complete rewrite to incorporate new solutions developed by PVRC Joint Industry Project
Annex F - Material Properties for a FFS Assessment, new stress-strain curve model incorporated
Annex H - Technical Basis and Validation of FFS Procedures
Annex K - Crack Opening Areas, new annex covering crack opening areas for through-wall flaws in cylinders and spheres
Overview of API 579-1/ASME FFS-1
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Organization of Parts
Part 1 – Introduction
Part 3 – Assessment of Equipment for Brittle Fracture
Part 4 – Assessment of General Metal Loss (tm < tmin - large area)
Part 5 – Assessment of Localized Metal Loss (tm < tmin - small area)
Part 6 – Assessment of Pitting Corrosion
Part 7 – Assessment Of Hydrogen Blisters and Hydrogen Damage Associated with HIC and SOHIC
Part 8 – Assessment of Weld Misalignment and Shell Distortions
Part 9 – Assessment of Crack-Like Flaws
Part 10 – Assessment of Equipment Operating in the Creep Regime
Part 11 – Assessment of Fire Damage
Part 12 – Assessment of Dents, Gouges, and Dent-Gouge Combinations
Part 13 – Assessment of Laminations
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Organization of Annexes
Annex A – Thickness, MAWP, and Stress Equations for a FFS Assessment
Annex B – Stress Analysis Overview for a FFS Assessment
Annex C – Compendium of Stress Intensity Factor Solutions
Annex D – Compendium of Reference Stress Solutions
Annex E – Residual Stresses in a FFS Evaluation
Annex F – Material Properties for a FFS Assessment
Annex G – Deterioration and Failure Modes
Annex H – Validation
Annex J – Currently Not Used
Annex K – Crack Opening Areas
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Balloting of API 579-1/ASME FFS-1
The initial ballot was issued on March 11th, 2002, and the final ballot was issued on March 28th, 2007
A total of 119 ballots were issued, closed, and all comments were resolved by the joint committee; an outstanding effort by all committee members!
Two committees were simultaneously balloted, API/ASME Joint Committee on FFS and the API CRE Task Group on FFS, many members serve on both committees
Worked with the following Joint Industry Projects to support balloting process; technology development is heavily leveraged
MPC Fitness-For-Service JIP
MPC HIC JIP
Battelle Structural Stress JIP
Balloting of API 579-1/ASME FFS-1
Coordinated the balloting process of API 579-1/ASME FFS-1 with the new ASME Section VIII, Division 2 Pressure Vessel Code to achieve harmonization between Fitness-For-Service and design rules, where appropriate; feedback from both standards committees subsequently used to improve both documents
Submitted for ANSI approval on February 23, 2007, final ANSI approval expected in May, 2007 (BSR8 & BSR9)
ASME Board on pressure technology Codes and Standards (BPTCS) approved API 579-1/ASME FFS-1 on March 28, 2007
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Editing performed by D.A. Osage on volunteer basis
Streamlined publication process
All parts produced in MS Word using MathType for equations, Visio for graphics, and SigmaPlot for graphs
Production ready MS Word documents circulated to committee members during balloting process using MS Word red-line mode feature
After final approval, MS Word versions of all Parts sent to E2G Publications Department for review with API Publications Staff and final document processing
Hypertext Links added to MS Word files, PDF version produced with full hyperlink capability
PDF version sent to API, forms basis of electronic version and paper version
Very time/cost effective process for producing a large complex document (over 1700 pages)
Production version of API 579-1/ASME FFS-1 currently posted on E2G website with DRAFT Watermark, available to committee members, password protected
Waiting for final approval, publication expected in May 2007
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Technical Basis and Validation of API 579-1/ASME FFS-1
Joint API/ASME FFS Committee committed to publishing the technical basis to all FFS assessment procedures utilized in API 579-1/ASME FFS-1 2007 in the public domain
Appendix H of API 579-1/ASME FFS-1 2007 provides an overview of technical basis and validation with related references organized by damage type; the references are published in a series of WRC Bulletins and technical papers
Publication of technical background has been instrumental in obtaining acceptance from regulatory bodies
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Review of Existing Fitness-For-Service Criteria for Crack-Like Flaws (WRC 430)
Technologies for the Evaluation of Non-Crack-Like Flaws in Pressurized Components - Erosion/Corrosion, Pitting, Blisters, Shell Out-of-Roundness, Weld Misalignment, Bulges, and Dents in Pressurized Components (WRC 465)
Development of Stress Intensity Factor Solutions for Surface and Embedded Cracks in API 579 (WRC 471)
Stress Intensity and Crack Growth Opening Area Solutions for Through-wall Cracks in Cylinders and Spheres (WRC 478)
Recent Progress in Analysis of Welding Residual Stresses (WRC 455)
Recommendations for Determining Residual Stresses in Fitness-For-Service Assessments (WRC 476)
Master S-N Curve Method for Fatigue Evaluation of Welded Components (WRC 474)
An Overview and Validation of The Fitness-For-Service Assessment Procedures for Locally Thin Areas in API 579 (WRC 505)
Technical Basis and Validation of API 579-1/ASME FFS-1
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An Overview of The Fitness-For-Service Assessment Procedures for Pitting Damage in API 579
Compendium of Temperature-Dependent Physical Properties for Pressure Vessel Materials (WRC 503)
An Overview and validation of the Fitness-For-Service Rules for the Assessment of HIC/SOHIC Damage in API 579
An Overview of the Fitness-For-Service Assessment Procedures for Weld Misalignment and Shell Distortions in API 579
An Overview and Validation of the Fitness-For-Service Assessment Procedures for Crack-Like Flaws in API 579
An Overview and Validation of Residual Stress Distributions for Use in the Assessment Procedures of Crack-Like Flaws in API 579
MPC Project Omega and Procedures for Assessment of Creep Damage in API 579
Development of a Local Strain Criteria Based on the MPC Universal Stress-Strain Equation
Update on the Master S-N Curve Method for Fatigue Evaluation of Welded Components
Technical Basis and Validation of API 579-1/ASME FFS-1
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Alternative FFS Methodologies from international standards permitted under a Level 3 Assessment; for example, Section 9 covering crack-like flaws provides reference to:
Nuclear Electric R-6
BS 7910 (PD 6493)
SAQ/FoU-Report 96/08
EPRI J-Integral
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API/ASME FFS Joint committee currently working on separate example problems manual, scheduled for release in 2008
Committee also addressing agenda items generated during balloting process
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Updated brittle fracture screening procedures
Enhanced LTA assessment procedures
Further improvements in residual stress solutions
Improvements in material property evaluation for in-service components
Assessment of HTHA (High Temperature Hydrogen Attack) Damage
Assessment of Hot-Spot
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Phone: 216-283-9519 • Fax: 216-283-6022