EN 13445-6-2014 en Unfired pressure vessels - Part 6 Requirements for the design and fabrication of pressure vessels and pressure parts constructed from spheroidal graphite cast ir.pdf

1、BSI Standards PublicationBS EN 13445-6:2014Unfired pressure vesselsPart 6: Requirements for the design andfabrication of pressure vessels and pressureparts constructed from spheroidal graphitecast ironBS EN 13445-6:2014Incorporating corrigendum September 2015BS EN 13445-6:2014 BRITISH STANDARDNation

2、al forewordThis British Standard is the UK implementation of EN 13445-6:2014. It supersedes BS EN 13445-6:2009 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PVE/1, Pressure Vessels.A list of organizations represented on this committee can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

3、 on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 90566 7ICS 23.020.30Compliance with a

4、 British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2014.Amendments/corrigenda issued since publicationDate Text affected30 September 2015 Corrected version issued by CE

5、N, see EN foreword for detailsEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13445-6 September 2014 ICS 23.020.30 Supersedes EN 13445-6:2009English Version Unfired pressure vessels - Part 6: Requirements for the design and fabrication of pressure vessels and pressure parts constructed from sph

6、eroidal graphite cast iron Rcipients sous pression non soumis la flamme - Partie 6: Exigences pour la conception et la fabrication des rcipientssous pression et des parties sous pression mouls en fonte graphite sphrodal Unbefeuerte Druckbehlter - Teil 6: Anforderungen an die Konstruktion und Herstel

7、lung von Druckbehltern und Druckbehlterteilen aus Gusseisen mit Kugelgraphit This European Standard was approved by CEN on 19 August 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a nation

8、al standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A versi

9、on in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Cz

10、ech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

11、EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13445-6:2014

12、 EEN 13445-6:2014 (E)Issue 2 (2015-07) 2Contents PageForeword 5 1 Scope 7 2 Normative references 7 3 Terms, definitions, units and symbols 8 3.1 Terms and definitions .8 3.2 Units 9 3.3 Symbols 9 3.4 Inter-relation of thicknesses definitions .11 4 Service conditions .11 4.1 Cyclic loading .11 4.2 Li

13、mitations on temperature and energy content 12 5 Requirements .12 5.1 Materials .12 5.2 Design .14 5.2.1 Technical documentation .14 5.2.2 Design methods .14 5.3 Founding .20 5.3.1 General 20 5.3.2 Welding .20 6 Material testing .20 6.1 General 20 6.2 Frequency and number of tests .20 6.3 Chemical a

14、nalysis 20 6.4 Graphite structure21 6.5 Inspection documents .21 7 Testing and final assessment .21 7.1 Testing 21 7.1.1 General 21 7.1.2 Testing requirements for CQ= 0,8 .21 7.1.3 Testing requirements for CQ= 0,9 .21 7.1.4 Surface imperfections .22 7.1.5 Cracks, laps, cold shut and non-fused chaple

15、ts 23 7.1.6 Ultrasonic testing and/or sectioning .23 7.1.7 Magnetic particle testing (only for ferritic grades) .23 7.1.8 Penetrant testing 23 7.1.9 Radiographic testing .23 7.1.10 Surface roughness 24 7.1.11 Minimum wall thickness 24 7.1.12 Wall thickness tolerances .24 7.1.13 Other dimensions 24 7

16、.1.14 Qualification of testing personnel 24 7.2 Final assessment .24 7.2.1 General 24 7.2.2 Hydraulic test pressure .24 8 Pressure vessels constructed of a combination of parts in different materials .25 9 Marking and documentation .25 9.1 Marking of castings .25 9.2 Name plate for the complete pres

17、sure vessel 25 9.3 Documentation .25 BS EN 13445-6:2014EN 13445-6:2014 (E)Issue 2 (2015-07)EN 13445-6:2014 (E)Issue 2 (2015-07) 3Annex A (normative) Technical data for the design calculations . 26 A.1 Purpose. 26 A.2 Technical data 26 A.2.1 Ferritic spheroidal graphite cast iron according to EN 1563

18、:1997 . 26 A.2.2 Austenitic spheroidal graphite cast iron according to EN 13835:2002 27 Annex B (informative) Ductility 28 Annex C (informative) Determination of the minimum local wall thickness and minimum required burst test pressure 29 Annex D (normative) Assessment of fatigue life 30 D.1 Purpose

19、. 30 D.2 Specific definitions 30 D.3 Specific symbols and abbreviations . 30 D.4 Limitations 31 D.5 General 31 D.6 Simplified fatigue assessment . 31 D.6.1 Pseudo-elastic stress range . 31 D.6.2 Correction factors 32 D.6.3 Fatigue design curves . 32 D.6.4 Allowable number of cycles . 38 D.6.5 Allowa

20、ble stress range . 38 D.7 Detailed fatigue assessment 38 D.7.1 Pseudo-elastic stress ranges . 38 D.7.2 Corrections to stress range 39 D.7.3 Fatigue design curves . 40 D.7.4 Allowable number of cycles . 41 D.7.5 Allowable stress range 42 D.8 Assessment rule for total fatigue damage 42 D.9 Repairs of

21、surface imperfections . 42 Annex E (normative) Design by analysis for castings . 43 E.1 Introduction 43 E.2 Special requirements to EN 13445-3:2014, Annex B 43 E.2.1 Addition to B.8.2.3: Design checks for normal operating load cases 43 E.2.2 Addition to B.8.2.4: Design checks for testing load cases

22、. 43 E.3 Additions to EN 13445-3:2014, Annex C 43 E.4 Requirements . 44 Annex F (informative) Recommandations for in-service validation and inspection 45 F.1 Purpose. 45 F.2 Tests during operation 45 F.3 Measures to be taken when the calculated allowable fatigue lifetime has been reached . 46 F.3.1

23、General 46 F.3.2 Testing of vessels and pressure parts at end of life without indicated damages 46 F.3.3 Hydraulic testing of vessels and vessel parts with indicated damages 46 Annex G (normative) Specific design requirements 47 G.1 Scope 47 G.2 Design . 47 G.2.1 General 47 G.2.2 Cover thickness, pr

24、essure to convex side 48 G.2.3 Pressure to concave side . 48 G.2.4 Flange thickness 48 Annex H (normative) Experimental cyclic pressure testing procedure . 49 H.1 Purpose. 49 H.2 Validity 49 H.3 Tests requirements 49 H.3.1 General 49 H.3.2 Number of parts . 49 H.3.3 Procedure . 49 BS EN 13445-6:2014

25、EN 13445-6:2014 (E)Issue 2 (2015-07)EN 13445-6:2014 (E)Issue 2 (2015-07) 4H.3.4 Material tests 51 H.4 Allowable number of cycles .51 Annex Y (informative) History of EN 13445-6 .53 Y.1 Differences between EN 13445-6:2009 and EN 13445-6:2014 .53 Annex ZA (informative) Relationship between this Europe

26、an Standard and the Essential Requirements of the EU Pressure Equipment Directive 97/23/EC .54 Bibliography 55 BS EN 13445-6:2014EN 13445-6:2014 (E)Issue 2 (2015-07)EN 13445-6:2014 (E)Issue 2 (2015-07) 5ForewordThis document (EN 13445-6:2014) has been prepared by Technical Committee CEN/TC 54 “Unfir

27、ed pressure vessels”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2014, and conflicting national standards shall be withdrawn at the latest by

28、 December 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the Eu

29、ropean Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document. This European Standard consists of the following Parts: Part 1: General Part

30、 2: Materials Part 3: Design Part 4: Fabrication Part 5: Testing and Inspection Part 6: Requirements for the design and fabrication of pressure vessels and pressure parts constructed from spheroidal graphite cast iron CR 13445-7, Unfired pressure vessels Part 7: Guidance on the use of conformity ass

31、essment procedures Part 8: Requirements for the design and fabrication of pressure vessels and pressure parts constructed from spheroidal graphite cast iron. CEN/TR 13445-9, Unfired pressure vessels Part 9: Conformance of EN 13445 series to ISO 16528 Although these Parts may be obtained separately,

32、it should be recognised that the Parts are inter-dependant. As such the manufacture of unfired pressure vessels requires the application of all the relevant Parts in order for the requirements of the Standard to be satisfactorily fulfilled. Corrections to the standard interpretations where several o

33、ptions seem possible are conducted through the Migration Help Desk (MHD). Information related to the Help Desk can be found at http:/www.unm.fr (en13445unm.fr). A form for submitting questions can be downloaded from the link to the MHD website. After subject experts have agreed an answer, the answer

34、 will be communicated to the questioner. Corrected pages will be given specific issue number and issued by CEN according to CEN Rules. Interpretation sheets will be posted on the website of the MHD. This document supersedes EN 13445-6:2009. This new edition incorporates the Amendments which have bee

35、n approved previously by CEN members, and the corrected pages up to Issue 5 without any further technical change. Annex Y provides details of significant technical changes between this European Standard and the previous edition. BS EN 13445-6:2014EN 13445-6:2014 (E)Issue 2 (2015-07)EN 13445-6:2014 (

36、E)Issue 2 (2015-07) 6Amendments to this new edition may be issued from time to time and then used immediately as alternatives to rules contained herein. It is intended to deliver a new Issue of EN 13445:2014 each year, consolidating these Amendments and including other identified corrections. Issue

37、2 (2015-07) includes the corrected pages listed in Annex Y. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

38、 Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 13445-6:2014EN 13445-

39、6:2014 (E)Issue 2 (2015-07)EN 13445-6:2014 (E)Issue 2 (2015-07) 71 Scope This European Standard specifies requirements for the design, materials, manufacturing and testing of pressure vessels and pressure vessel parts intended for use with a maximum allowable pressure, PS, equal or less than 100 bar

40、 and shell wall thicknesses not exceeding 60 mm, which are constructed of ferritic or austenitic spheroidal graphite cast iron. The thickness limitation of the shell does not apply to thickness of flanges, reinforcements, bosses etc. The allowable grades do not include lamellar graphite cast iron gr

41、ades for ferritic and austenitic grades, which are explicitly excluded from this European Standard because of low elongation and brittle material behaviour, which requires the use of different safety factors and a different approach. NOTE 1 Austenitic spheroidal graphite cast iron grades are princip

42、ally used for high and low temperature applications and for their corrosion resistance properties. NOTE 2 The allowable grades of spheroidal graphite cast iron are listed in Tables 3 and Tables 4. Service conditions are given in Clause 4. 2 Normative references The following documents, in whole or i

43、n part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 764-2:2012, Pressure equipment Part 2: Qua

44、ntities, symbols and units EN 764-5:2002, Pressure equipment Part 5: Compliance and inspection documentation of materials EN 837-1:1996, Pressure gauges Part 1: Bourdon tube pressure gauges Dimensions, metrology, requirements and testing EN 837-3:1996, Pressure gauges Part 3: Diaphragm and capsule p

45、ressure gauges Dimensions, metrology, requirements and testing EN 1369:2012, Founding Magnetic particle testing EN 1370:2011, Founding Examination of surface condition EN 1371-1:2011, Founding Liquid penetrant testing Part 1: Sand, gravity die and low pressure die castings EN 1559-1:2011, Founding T

46、echnical conditions of delivery Part 1: General EN 1559-3:2011, Founding Technical conditions of delivery Part 3: Additional requirements for iron castings EN 1563:1997, EN 1563:1997/A1:2002, EN 1563:1997/A2:2005, Founding Spheroidal graphite cast irons EN 12680-3:2011, Founding Ultrasonic testing P

47、art 3: Spheroidal graphite cast iron castings. EN 12681:2003, Founding Radiographic examination EN 13445-1:2014, Unfired pressure vessels Part 1: General EN 13445-3:2014, Unfired pressure vessels Part 3: Design EN 13445-5:2014, Unfired pressure vessels Part 5: Inspection and testing BS EN 13445-6:20

48、14EN 13445-6:2014 (E)Issue 2 (2015-07)EN 13445-6:2014 (E)Issue 2 (2015-07) 8EN 13835:2002, EN 13835/A1:2006, Founding Austenitic cast irons EN ISO 945-1:2008, Microstructure of cast irons Part 1: Graphite classification by visual analysis (ISO 945-1:2008) EN ISO 8062-1:2007, Geometrical product spec

49、ifications (GPS) Dimensional and geometrical tolerances for moulded parts Part 1: Vocabulary (ISO 8062-1:2007) EN ISO 8062-3:2007, Geometrical product specifications (GPS) Dimensional and geometrical tolerances for moulded parts Part 3: General dimensional and geometrical tolerances and machining allowances for castings (ISO 8062-3:2007) 3 Terms, definitions, units and symbols 3.1 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1