1、 Fitness-For-Service API 579-1/ASME FFS-1, JUNE 5, 2007 (API 579 SECOND EDITION) ERRATA February 2009Summary of Errata and Editorial Changes for API-579-1-ASME_FFS-1_Fitness for Service Sunday, February 22, 2009 1 Section Paragraph/Figure/Table Description Effected Pages Errata Summary Miscellaneous
2、 entries Corrections to descriptions 2-5 Foreword Paragraph 7 Split paragraph and add note on location of errata document iii 3 Paragraph 3.4.2.1.c.1.V Correct Equation reference 3-6 3 Figure 3.7M Correct numbering for notes 3-36 4 Paragraph 4.2.6.1 Change reference to Annex B1 from 1.5.4 to 1.5.2 4
3、-3 4 Paragraph 4.4.1.4.c Change reference from A.2.6 to A.2.7 4-7 4 Figure 4.6, 4.8 Replace ct with rdt 4-27,4-29 4 Figure 4.6 Correct pagination so that the figure title is on same page as the figure 4-27 5 Figure 5.3 Replace ct with rdt 5-28 6 Paragraph 6.4.2.2.e Remove extra period at end of firs
4、t sentence 6-6 6 Paragraph 6.4.2.2.e Remove sentence “In Equation (6.3), rdt can be replaced by nomt - LOSS “ 6-6 6 Paragraph 6.4.3.3.c.3 Replace RSF with pitRSF 6-10 6 Paragraph 6.4.3.3.c.4 Delete equation 6.22 and renumber all subsequent equations 6-10 - 6-12 6 Paragraph 6.4.3.3.c.6 Replace RSF wi
5、th pitRSF 6-10 7 Paragraph 7.4.2.1 Switch steps 1 and 2 7-7 7 Equation 7.12 Remove FCA from equation for mmt 7-8 7 Equation 7.14 Remove FCA from equation for RSF 7-9 7 Nomenclature Insert phrase “Modified by the future corrosion allowance ( FCA ) as required.” Into the definitions for mmt , mm IDt,
6、mm ODtand Hw 7-16 Summary of Errata and Editorial Changes for API-579-1-ASME_FFS-1_Fitness for Service Sunday, February 22, 2009 2 Section Paragraph/Figure/Table Description Effected Pages 7 Figure 7.2 Replace ct with rdt and edit new note to read “ Note: , ,H mm mm ID mm ODwt t andt, shall be modif
7、ied by the FCA as appropriate.“ 7-21 7 Figures 7.5, 7.6, 7.7, 7.8 Add Note 2 to figure “ mmt shall be modified by the FCA as appropriate.” 7-24 7-27 7 Figures 7-5,7-6,7-7,7-8, and 7-13 Replace ct with rdt 7-24 through 7-27 and 7-32 8 Table 8.3 Add Code References 8-22 8 Table 8.3 Amend Code referenc
8、e for Cylindrical Shell-To-Head Attachment Weld to Table 4.2.5 Details 2-5 8-22 8 Table 8.3 Enclose Division 2 code references in parentheses 8-22 8 Table 8.5 Code References 8-24 8 Table 8.6 Code References 8-25 8 Table 8.7 Code References and add note on radius tolerances 8-26 8 Tables 8.5, 8.6, a
9、nd 8.7 Correct last condition to 76 (250 )D mft 8-24 8-26 9 Paragraph 9.3.4.3 Change sees to see 9-6 9 Figures 9.12 and 9.12M Correct labeling and line style for curves B and C for 14t flaw size 9-51,9-52 9 Figure 9.22 Swap the yes and no for the decision point “Consequence of Leakage Acceptable?” 9
10、-68 12 Equation 12.12 - 12.22, 12.23,12.24,12.27,12.28,12.29,12.30, Nomenclature, Figure 12.3 and 12.4 To correct the calculation of the thickness at time of assessment, the following changes were made: Delete equation 12.11, add 2 equations for mmt , re-number existing equations, correct nomenclatu
11、re, and correct figures. 12-8 thru 12-11,12-14, 12-21, 12-22 A Paragraph A.3.4. c Change condition to P 1.25 SE A-9 Summary of Errata and Editorial Changes for API-579-1-ASME_FFS-1_Fitness for Service Sunday, February 22, 2009 3 Section Paragraph/Figure/Table Description Effected Pages A Paragraph A
12、.3.5.b Remove extra comma after min0.356tR A-9 A Equation A.28 Add coefficient 2 A-9 A Equation A.29 Add coefficient 2 A-10 A Equation A.196 Correct value A-28 A Equation A.198 Correct coefficient A-28 A Equation A.219 Correct inequality A-32 A Equation A.223 Correct inequality A-32 A Paragraph A.5.
13、4.a Remove extra comma before ( A-41 A Paragraph A.5.4.a and b Add phrase and 0.5ctR and 125 (5.0 )D mm in A-41 A Paragraph A.5.4.b Add subscript c to t in 0.5tR A-41 A Equation A.320 Add D to the denominator of the equation A-44 A Equation A.322 Add D to the denominator of the equation A-44 A Nomen
14、clature is in degrees A-54 A Nomenclature In definition for move period to outside of ) A-54 B1 Equation B1.34 Correct the calculation of the Poisson correction factor vkk This inserts an equation and causes a renumbering of all equations from equation B1.34 onward B1-19 - B1-27 and B1-32 - B1-34 B1
15、 Equations B1.63 B1.65 Previously Equations B1.62 B1.64 Add superscript eto B1-24 B1 Nomenclature Add p B1-40 B1 Nomenclature Insert space in definition of p between words ratio and adjusted. B1-40 B1 Table B1.4 Add reference to ASME VIII Div2 for Note 6 for = 2.4aRSF B1-49 Summary of Errata and Edi
16、torial Changes for API-579-1-ASME_FFS-1_Fitness for Service Sunday, February 22, 2009 4 Section Paragraph/Figure/Table Description Effected Pages B1 Table B1.5 Merge cells for cylindrical or conical shell and for nozzle B1-50, B1-51 B1 Table B1.9 Correct table format B1-54 B4 Paragraph B4.3.2 Change
17、 can to shall B4-2 D Figure References Correct reference to figures in Part C through to page D-26 D-12 thru D-26 D Paragraph D5.6.2 Remove extra period D-15 E Paragraph E3.4.b Equation reference to E.5 should be E.8 E-4 E Equation E.16 Correct units E-5 E Equation E.64 Third term in denominator sho
18、uld be a + E-12 E Equation E.67 Fourth term in numerator should be a + E-13 E Paragraph E5.2.1.a Paragraph reference should be E.4.2.1.a E-14 E Paragraph E5.2.1.b Paragraph reference should be E.4.2.1.b E-14 E Paragraph E5.2.2.a Paragraph reference should be E.4.2.2.a E-14 E Paragraph E5.2.2.b Parag
19、raph reference should be E.4.2.2.b E-14 E Paragraph E5.4.1.a Paragraph reference should be E.4.2.1.a E-15 E Paragraph E5.4.1.b Paragraph reference should be E.4.2.1.b E-15 E Paragraph E5.4.2.a Paragraph reference should be E.4.2.2.a E-16 E Paragraph E5.4.2.b Paragraph reference should be E.4.2.2.b E
20、-16 F Equation F.10 Drop the subscript s in Equation F10 F-4 F Equations F.22, F23, F24, F25, F26, Add subscript t to F-5 F Paragraph F.4.5.1.a Provide paragraph reference F-13 F Equation F.84 Correct ICK to reflect correct temperature shift ( )( )075TT F-16 F Paragraph F.6.3.2 Replace rangeS with ,
21、ess kS F-37 F Equation F.218 Replace rangeS with ,ess kS F-37 Summary of Errata and Editorial Changes for API-579-1-ASME_FFS-1_Fitness for Service Sunday, February 22, 2009 5 Section Paragraph/Figure/Table Description Effected Pages F Equation F.222 Replace rangeS with ,ess kS correct equation to us
22、e usC F-38 F Equation F.223 Correct equation for MTf F-38 F Nomenclature Delete definition for usmC F-42 F Nomenclature Delete definition for rangeS and add definition for ,ess kS F-43 F Nomenclature Correct true strain definitions F-43 F Table F.3 Change Carbon Steel (YS in second fatigue coefficie
23、nt condition F-82 F Table F.30 Correct omega parameter for 2.25Cr-1Mo-V 4A =450 and 4B =450 F-89 F Table F.31 Change 9Cr-1Mo-V equation number from 1 to 2 F-93 F Table F.31 Correct coefficients for 9Cr-1Mo-V F-93 F Figure F.4M Move cutoff line for High Sulfur steels to 110 MPa m F-100 K Table K.3 Ad
24、d variable to third power to denominator for H in Note 2 K-10 K Table K.4 Add variable to third power to denominator for H in Note 2 K-11 iii received. All users are encouraged to inform the committee if they discover areas in which these procedures should be corrected, revised or expanded. Suggesti
25、ons should be submitted to the Secretary, API/ASME Fitness-For-Service Joint Committee, The American Society of Mechanical Engineers, Three Park Avenue, New York, NY 10016, or SecretaryFFSasme.org. Items approved as errata to this edition are published on the ASME Web site under Committee Pages at h
26、ttp:/cstools.asme.org. Under Committee Pages, expand Board on Pressure Technology Codes and piping constructed to all Editions and Addenda prior to 2002 of ASME B31.1. The threshold value for this curve is 0.40. 3. Use this curve for components with a design allowable stress at room temperature less
27、 than or equal to 20 ksi but greater than 17.5 ksi. This curve can be used for vessels constructed to the 1999 Addenda and later Editions and Addenda of the ASME Code, Section VIII, Division 1; and piping constructed to the 2002 Addenda and later Editions and Addenda of ASME B31.1. The threshold val
28、ue for this curve is 0.35. 4. Use this curve for components with a design allowable stress at room temperature less than or equal to 25 ksi but greater than 20 ksi. This curve can be used for vessels designed and constructed to the ASME Code, Section VIII, Division 2, and piping designed to ASME B31
29、.3. The threshold value for this curve is 0.30. 5. The equations for the curves in this figure are provided in Table 3.4. Figure 3.7 Reduction in the MAT Based On Available Excess Thickness for Carbon and Low Alloy Steel Components Temperature Reduction, oF0 20 40 60 80 100 120 140 160 180 200Stress
30、 Ratio0.20.30.40.50.60.70.80.91.0(Note 2)(Note 4)(Note 3)API 579-1/ASME FFS-1 2007 Fitness-For-Service - 2009 Errata 3-36 Notes: 1. A definition of the parameters used in this curve is provided in paragraph 3.9. 2. Use this curve for components with a design allowable stress at room temperature less
31、 than or equal to 120.8 MPa. This curve can be used for vessels constructed to all Editions and Addenda prior to 1999 of the ASME Code, Section VIII, Division 1; and piping constructed to all Editions and Addenda prior to 2002 of ASME B31.1. The threshold value for this curve is 0.40. 3. Use this cu
32、rve for components with a design allowable stress at room temperature less than or equal to 137.8 MPa but greater than 120.8 MPa. This curve can be used for vessels constructed to the 1999 Addenda and later Editions and Addenda of the ASME Code, Section VIII, Division 1; and piping constructed to th
33、e 2002 Addenda and later Editions and Addenda of ASME B31.1. The threshold value for this curve is 0.35. 4. Use this curve for components with a design allowable stress at room temperature less than or equal to 172.5 MPa but greater than 137.8 MPa . This curve can be used for vessels designed and co
34、nstructed to the ASME Code, Section VIII, Division 2, and piping designed to ASME B31.3. The threshold value for this curve is 0.30. 5. The equations for the curves in this figure are provided in Table 3.4. Figure 3.7M Reduction in the MAT Based On Available Excess Thickness for Carbon and Low Alloy
35、 Steel Components Temperature Reduction, oC0 1020304050607080901010120Stress Ratio0.20.30.40.50.60.70.80.91.0(Note 2)(Note 4)(Note 3)API 579-1/ASME FFS-1 2007 Fitness-For-Service - 2009 Errata 4-3 b) Type B Components A component that does not have a design equation that specifically relates pressur
36、e (or liquid fill height for tanks) and/or other loads, as applicable, to a required wall thickness. These components have a code design procedure to determine an acceptable configuration, examples are shown below. Type B components typically exist at a major structural discontinuity and involve the
37、 satisfaction of a local reinforcement requirement (e.g. nozzle reinforcement area), or necessitate the computation of a stress level based upon a given load condition, geometry, and thickness configuration (e.g. flange design). These rules typically result in one component with a thickness that is
38、dependent upon that of another component. Design rules of this type have thickness interdependency, and the definition of a minimum thickness for a component is ambiguous. Examples of Type B components are shown below. 1) Pressure vessel nozzles, tank nozzles and piping branch connections 2) The rei
39、nforcement zone of conical transitions 3) Cylinder to flat head junctions 4) Integral tubesheet connections 5) Flanges 6) Piping systems (see paragraph 4.4.3.3.b.3) c) Type C Components A component that does not have a design equation which specifically relates pressure (or liquid fill height for ta
40、nks) and/or other loads, as applicable, to a required wall thickness. In addition, these components do not have a code design procedure to determine local stresses. Examples of Type C components are shown below. 1) Pressure vessel head to shell junctions 2) Stiffening rings attached to a shell 3) Sk
41、irt and lug-type supports on pressure vessels 4) Tank shell bottom course to tank bottom junction 4.2.6 Specific details pertaining to the applicability and limitations of each of the assessment procedures are discussed below. 4.2.6.1 The Level 1 or 2 assessment procedures in this Part apply only if
42、 all of the following conditions are satisfied. a) The original design criteria were in accordance with a recognized code or standard (see Part 1, paragraphs 1.2.2 or 1.2.3). b) The region of metal loss has relatively smooth contours without notches (i.e. negligible local stress concentrations). c)
43、The component is not in cyclic service. If the component is subject to less than 150 cycles (i.e. pressure and/or temperature variations including operational changes and start-ups and shut-downs) throughout its previous operating history and future planned operation, or satisfies the cyclic service
44、 screening procedure in Annex B1 paragraph B1.5.2, then the component is not in cyclic service. d) The following limitations on component types and applied loads are satisfied: 1) Level 1 Assessment Type A Components subject to internal pressure or external pressure (i.e. supplemental loads are assu
45、med to be negligible). 2) Level 2 Assessment Type A or B Components (see Part 4, paragraph 4.2.5) subject to internal pressure, external pressure, supplemental loads (see Annex A, paragraph A.2.7), or any combination thereof. 4.2.6.2 A Level 3 Assessment can be performed when the Level 1 and 2 Asses
46、sment procedures do not apply, or when these assessment levels produce overly conservative results (i.e. would not permit operation at the current design conditions). Examples include, but are not limited to the following. a) Type A, B, or C Components subject to internal pressure, external pressure
47、, supplemental loads, and any combination thereof. b) Components with a design based on proof testing (e.g. piping tee or reducer produced in accordance with ASME B16.9 where the design may be based on proof testing). API 579-1/ASME FFS-1 2007 Fitness-For-Service - 2009 Errata 4-4 c) Components in c
48、yclic service or components where a fatigue analysis was performed as part of the original design calculations; the assessment should consider the effects of fatigue on the FitnessForService calculations used to qualify the component for continued operation. 4.3 Data Requirements 4.3.1 Original Equi
49、pment Design Data An overview of the original equipment data required for an assessment is provided in Part 2, paragraph 2.3.1. 4.3.2 Maintenance and Operational History An overview of the maintenance and operational history required for an assessment is provided in Part 2, paragraph 2.3.2. 4.3.3 Required Data/Measurements For A FFS Assessment 4.3.3.1 Thickness readings are required on the component where the metal loss has occurred to evaluate general metal loss. An overview of the Level 1 and Level 2 assessment options are show
