1、PUBLISHED DOCUMENTPD CEN/TR 13445-9:2007Unfired pressure vessels Part 9:Conformance of the EN 13445 series to ISO 16528ICS 23.020.30?PD CEN/TR 13445-9:2007This Published Document was published under the authority of the Standards Policy and Strategy Committee on 31 August 2007 BSI 2007ISBN 978 0 580
2、 58035 2National forewordThis Published Document is the UK implementation of CEN/TR 13445-9:2007.The UK participation in its preparation was entrusted to Technical Committee PVE/1,Pressure vessels.A list of organizations represented on this committee can be obtained on request to its secretary.This
3、publication does not purport to include all the necessary provisions of a contract.Users are responsible for its correct application.Amendments issued since publicationAmd.No.DateComments标准分享网 w w w.b z f x w.c o m 免费下载w w w.b z f x w.c o mTECHNICAL REPORTRAPPORT TECHNIQUETECHNISCHER BERICHTCEN/TR 1
4、3445-9April 2007ICS 23.020.30 English VersionUnfired pressure vessels-Part 9:Conformance of the EN 13445series to ISO 16528Rcipients sous pression non soumis la flamme-Partie9:Conformit de la srie EN 13445 IISO 16528Unbefeuerte Druckbehlter-Teil 9:Gegenberstellung derEN 13445-Normenreihe und ISO 165
5、28This Technical Report was approved by CEN on 1 April 2007.It has been drawn up by the Technical Committee CEN/TC 54.CEN members are the national standards bodies of Austria,Belgium,Bulgaria,Cyprus,Czech Republic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lit
6、huania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Romania,Slovakia,Slovenia,Spain,Sweden,Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre:rue de Stassart,36 B-1050 Brussels 2007 CENAll rights o
7、f exploitation in any form and by any means reservedworldwide for CEN national Members.Ref.No.CEN/TR 13445-9:2007:Ew w w.b z f x w.c o m2 Contents Page Foreword.3 1 Scope.4 2 Failure mode summary.5 3 Detailed failure mode checklists.6 4 Detailed technical requirements checklist.36 CEN/TR 13445-9:200
8、8标准分享网 w w w.b z f x w.c o m 免费下载w w w.b z f x w.c o m3 Foreword This document(CEN/TR 13445-9:2007)has been prepared by Technical Committee CEN/TC 54“Unfired pressure vessels”,the secretariat of which is held by BSI.Attention is drawn to the possibility that some of the elements of this document may
9、 be the subject of patent rights.CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights.CEN/TR 13445-9:2008w w w.b z f x w.c o m4 1 Scope This CEN Technical Report details the conformance of the EN 13445 series for Unfired pressure vessels to ISO 16528-1 Boile
10、rs and pressure vessels Part 1:Performance Requirements.This edition is limited to vessels of steel construction,but will be amended later to include spheroidal graphite cast iron and aluminium.CEN/TR 13445-9:2008标准分享网 w w w.b z f x w.c o m 免费下载w w w.b z f x w.c o m5 2 Failure mode summary Table 1 F
11、ailure mode summary STANDARD a:Unfired pressure vessels EN 13445:2002 Parts 1 to 5 and CR 13445-7 FAILURE MODE SUMMARY b Failure Modes according to ISO 16528 Part 1 clause 6.2 Addressed(Y/N/P)c Brittle Fracture Y Ductile rupture Y Leakage at Joints Y Elastic or Plastic Instability Y Creep Rupture P
12、Additional Failure Modes according to ISO 16528 Part 1 clause 6.1 Addressed(Y/N/P)c Crack formation or ductile tearing due to excessive local strains Y Creep excessive deformations at mechanical joints or resulting in unacceptable transfer of load P Creep instability P Erosion,corrosion P Environmen
13、tally assisted cracking e.g.stress corrosion cracking,hydrogen induced cracking,etc P Progressive plastic deformation Y Alternating plasticity Y Fatigue under elastic strains(medium and high cycle fatigue)or under elastic-plastic strains(low cycle fatigue)Y Environmentally assisted fatigue P a Provi
14、de full title of the standard and revision or addenda level b Failure modes addressed by this form(See ISO 16528 Part 1)c Y failure mode addressed by standard N failure mode not addressed by standard P failure mode recognized but details not addressed.CEN/TR 13445-9:2008w w w.b z f x w.c o m6 3 Deta
15、iled failure mode checklists Table 2 Detailed Failure Mode Checklists STANDARD:Unfired pressure vessels EN 13445:2002 FAILURE MODE a :Brittle fracture EXPLICIT DESIGN dReferences b :EN 13445-2:Unfired pressure vessels Part 2:Materials Annex B Requirements for prevention of brittle fracture Method 1
16、and Method 2 Comments c :Method 1:Technical requirements developed from operating experience and applicable to all metallic materials,but limited to certain thicknesses for which experience exists(see Table B.1-1).Method 2:Technical requirements developed from the principle of fracture mechanics and
17、 from operating experience but only applicable to C,CMn and low alloy ferritic steels with a specified minimum yield strength 460 N/mm.It can be applied to a wider range of thicknesses than method 1 and is less restrictive than method 1 for thinner materials(see Figures B.4-1 to B.4-5).IMPLICIT DESI
18、GN References:EN 13445-2:Unfired pressure vessels Part 2:Materials Annex B Requirements for prevention of brittle fracture Method 3.Comments:Method 3 is the application of a fracture mechanics analysis.FABRICATION DETAILS eReferences:Design requirements for construction details are given in:EN 13445
19、-3:Unfired pressure vessels Part 3:Design and in Annex A Design requirements for pressure bearing welds of this Part.Manufacturing tolerances are given in:EN 13445-4:Unfired pressure vessels Part 4:Fabrication Clause 5:Manufacturing tolerances CEN/TR 13445-9:2008标准分享网 w w w.b z f x w.c o m 免费下载w w w
20、.b z f x w.c o m7 Comments:Reference thickness is given in:EN 13445-2:Unfired pressure vessels Part 2:Materials Annex B Requirements for prevention of brittle fracture Table B.4-1:Reference thickness MATERIAL REQUIREMENTS fReferences:EN 13445-2:Unfired pressure vessels Part 2:Materials Clause 4.1.6:
21、Specified minimum impact energy measured on a Charpy-V-notch specimen at a test temperature in accordance with Annex B.EN 13445-4:Unfired pressure vessels Part 4:Fabrication Clause 8:Manufacture and testing of welds Production test Testing of coupon plates with the same required impact energy as abo
22、ve.Comments:Impact requirements are also specified for sub-sized Charpy-V-notch specimen if the base material is less than 10 mm thick.EXAMINATION REQUIREMENTS gReferences:EN 13445-5 Unfired pressure vessels Part 5:Inspection and testing Clause 6:Inspection and testing during fabrication,6.6 Non-des
23、tructive testing of welded joints.Comments:There are four testing(examination)groups:1(full NDE),2(full NDE and reduction with successful experience,fully mechanised and/or automatic welding process),3(spot testing),4(visual examination and higher test pressure).Acceptance criteria are based on EN I
24、SO 5817:2003,level C.TESTING REQUIREMENTS hReferences:EN 13445-3 Unfired pressure vessels Part 5:Inspection and testing Clause 10:Final assessment,10.2.3 Proof test.Comments:Higher pressure test for vessels with visual NDE only.USE/FAILURE HISTORY i CEN/TR 13445-9:2008w w w.b z f x w.c o m8 Referenc
25、es:Comments:a Failure mode addressed by this form(See Table 1).b Provide specific clause or paragraph references(including the title,if any)indicating where relevant rules can be found.These references need not be exhaustive,but should be detailed enough to establish that the standard adequately add
26、resses the selected failure mode.C Provide explanatory comments indicating the background for the approach employed or other material that might be useful.For example,brief description of failure theor(ies)used should be provided.References to academic papers and empirical testing methods used to es
27、tablish rules are encouraged.D Reference(s)to rules or requirements that directly affect how the standard addresses the selected failure mode,e.g.formulas for sizing wall thickness of components for resisting ductile burst.D This section may be used to provide references and comments when design tab
28、les,empirically based rules or other approaches are employed whose derivation is not obvious.It may also be used to provide general information on design margins(safety factors)on material properties,etc.Many successful standards do not provide explicit design rules for certain failure modes yet do
29、employ combinations of material control,temperature limits or other means to provide adequate protection against failure.This section may be used to provide information on how his standard indirectly addresses certain failure modes when explicit rules are not provided.E References for fabrication de
30、tails relevant to the selected failure mode,e.g.control of cylinder ovality,weld profiling,control of tolerances,etc.For example,control of cylinder ovality is important for prevention of buckling of externally loaded vessels.This section should be used to describe such fabrication controls relevant
31、 for the designated failure mode.F Relevant requirements for base and welding materials,e.g.control of YS/UTS ratios,provisions for addressing strain hardening,applications of heat treatment,etc.Assuring that fabrication processes have not adversely affected material properties beyond acceptable lim
32、its can be important for preventing certain types of failures.This section should be used to describe such controls.G References for NDT or visual inspection relevant to the selected failure mode.(If NDT is correlated to design factors,this should be noted).h Provisions for final testing,i.e.hydrost
33、atic or leak tests should be noted with specific information on normal test pressures and control of test lower and upper test pressures.I An explanation shall be provided defining the limitations in the standards scope or application relative to Part 1 Clause 6.2 failure mode(s)not addressed.Refere
34、nces to data quantifying failure rates and other relevant experience may be provided.Likely sources include regulatory authorities,trade associations and insurers.CEN/TR 13445-9:2008标准分享网 w w w.b z f x w.c o m 免费下载w w w.b z f x w.c o m9 STANDARD:Unfired pressure vessels EN 13445:2002 FAILURE MODE a
35、:Ductile rupture EXPLICIT DESIGN dReferences b :EN 13445-3 Unfired pressure vessels Part 3:Design Clause 6:Maximum allowed values of the nominal design stress for pressure parts Comments c :IMPLICIT DESIGN dReferences:EN 13445-3 Unfired pressure vessels Part 3:Design Annex B Design by Analysis Direc
36、t Route,Clause B.8.2:Gross Plastic Deformation Annex C Design by Analysis Method based on stress categories Comments:In Annex B,elastic-plastic analysis is used.For ferritic steels,this analysis allows the use of a reduced safety factor versus the tensile strength at 20 C.FABRICATION DETAILS eRefere
37、nces:EN 13445-3 Unfired pressure vessels Part 4:Fabrication Clause 5:Manufacturing tolerances Comments:MATERIAL REQUIREMENTS fReferences:EN 13445-2 Unfired pressure vessels Part 2:Materials Clause 4:Requirements for materials to be used for pressure-bearing parts CEN/TR 13445-9:2008w w w.b z f x w.c
38、 o m10 Comments:Requirements on ductility.EXAMINATION REQUIREMENTS gReferences:EN 13445-5 Unfired pressure vessels Part 5:Inspection and testing Clause 6:Inspection and testing during fabrication,6.6 Non-destructive testing of welded joints Comments:Acceptance criteria are based on EN ISO 5817:2003,
39、level C.TESTING REQUIREMENTS hReferences:EN 13445-5 Unfired pressure vessels Part 5:Inspection and testing Clause 10 Final assessment,10.2.3 Proof test,10.2.3.3 Standard pressure test,10.2.3.9 Acceptance criteria Comments:During the proof test the vessel shall show no signs of general plastic yieldi
40、ng.USE/FAILURE HISTORY i References:Comments:CEN/TR 13445-9:2008标准分享网 w w w.b z f x w.c o m 免费下载w w w.b z f x w.c o m11 STANDARD:Unfired pressure vessels EN 13445:2002 FAILURE MODE a :Leakage at joints EXPLICIT DESIGN d References b :EN 13445-3 Unfired pressure vessels Part 3:Design Clause 11:Flange
41、s Comments c :Requirements for circular bolted flanged connections.The requirements are based on the Taylor Forge rules.Suggested values of the gasket factors are given in Annex H:Gasket factors m and y.IMPLICIT DESIGN d References:EN 13445-3 Unfired pressure vessels Part 3:Design Annex G Alternativ
42、e design rules for flanges and gasketed flange connections Comments:The purpose of these rules is to ensure structural integrity and leaktightness.They are most appropriate when a)thermal cycling is important b)bolt stress is controlled by the use of a defined tightening procedure c)there are signif
43、icant additional loadings(forces or moments)d)leaktightness is a special importance(requirement of a specified leaktightness).Gasket factor values are provided for use with this annex.FABRICATION DETAILS e References:EN 13445-4 Unfired pressure vessels Part 4:Fabrication Clause 5:Manufacture toleran
44、ces Comments:CEN/TR 13445-9:2008w w w.b z f x w.c o m12 MATERIAL REQUIREMENTS f References:EN 13445-2 Unfired pressure vessels Part 2:Materials Clause 4:Requirements for materials to be used for pressure-bearing parts.Comments:EXAMINATION REQUIREMENTS g References:EN 13445-5 Unfired pressure vessels
45、 Part 5:Inspection and testing Clause 6:Inspection and testing during fabrication,6.6 Non-destructive testing of welded joints.Comments:Acceptance levels based on EN ISO 5817:2003 Level C.TESTING REQUIREMENTS h References:EN 13445-3 Unfired pressure vessels Part 5:Inspection and testing Clause 10:Fi
46、nal assessment,10.2.3 Proof test,10.2.3.3 Standard hydrostatic test,10.2.3.9 Acceptance criteria Comments:During the proof test no leaks are permitted from the pressure envelope.USE/FAILURE HISTORY i References:CEN/TR 13445-9:2008标准分享网 w w w.b z f x w.c o m 免费下载w w w.b z f x w.c o m 13 Comments:STAN
47、DARD:Unfired pressure vessels EN 13445:2002 FAILURE MODE a :Elastic or plastic instability EXPLICIT DESIGN d References b :EN 13445-3 Unfired pressure vessels Part 3:Design Clause 8:Shells under external pressure Comments c :This Clause provides requirements for the design of stiffened and unstiffen
48、ed cylinders,cones,spheres and dished ends.IMPLICIT DESIGN d References:EN 13445-3 Unfired pressure vessels Part 3:Design Annex B Design by Analysis Direct Route,Clause B.8.4:Instability Comments:FABRICATION DETAILS e References:EN 13445-3 Unfired pressure vessels Part 3:Design Annex D Verification
49、of the shape of vessels subject to external pressure Annex E Procedure for calculating the departure from the true circle of cylinders and cones Annex F Allowable external pressure for vessels outside circularity tolerance.Comments:MATERIAL REQUIREMENTS f CEN/TR 13445-9:2008w w w.b z f x w.c o m 14
50、References:EN 13445-2 Unfired pressure vessels Part 2:Materials Clause 4:Requirements for materials to be used for pressure-bearing parts Comments:EXAMINATION REQUIREMENTS g References:EN 13445-5 Unfired pressure vessels Part 5:Inspection and testing Clause 6:Inspection and testing during fabricatio
