1、January 2016 English price group 17No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 23.020.30!%K7“2405620www.din.deD
2、IN EN 15776Unfired pressure vessels Requirements for the design and fabrication of pressure vessels and pressure parts constructed from cast iron with an elongation after fracture equal or less than 15 %;English version EN 15776:2011+A1:2015,English translation of DIN EN 15776:2016-01Unbefeuerte Dru
3、ckbehlter Anforderungen an die Konstruktion und Herstellung von Druckbehltern und Druckbehlterteilen aus Gusseisen mit einer Bruchdehnung von 15 % oder weniger;Englische Fassung EN 15776:2011+A1:2015,Englische bersetzung von DIN EN 15776:2016-01Rcipients sous pression non soumis la flamme Exigences
4、supplmentaires pour la conception et la fabrication des rcipients sous pression etdes parties sous pression mouls en fonte allongement, aprs rupture, infrieur ou gal 15 %;Version anglaise EN 15776:2011+A1:2015,Traduction anglaise de DIN EN 15776:2016-01SupersedesDIN EN 15776:2011-05www.beuth.deDocum
5、ent comprises 43 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.0116DIN EN 15776:2016-01 2 A comma is used as the decimal marker. National foreword This document (EN 15776:2011+A1:2015) has been prepared by Technical Committee
6、 CEN/TC 54 “Unfired pressure vessels” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was DIN-Normenausschuss Chemischer Apparatebau (DIN Standards Committee Process Engineering), Working Committee NA 012-00-05 AA Unbefeuerte Druckbehlter. Amendments This
7、standard differs from DIN EN 15776:2011-05 as follows: a) normative references have been updated; b) Subclause 4.1 has been revised; c) Table A.1 has been revised. Previous editions DIN EN 15776: 2011-05 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15776:2011+A1 October 2015 ICS 23.020.30 Su
8、persedes EN 15776:2011English Version Unfired pressure vessels - Requirements for the design and fabrication of pressure vessels and pressure parts constructed from cast iron with an elongation after fracture equal or less than 15 % Rcipients sous pression non soumis la flamme - Exigences supplmenta
9、ires pour la conception et la fabrication des rcipients sous pression et des parties sous pression mouls en fonte allongement, aprs rupture, infrieur ou gal 15 % Unbefeuerte Druckbehlter - Anforderungen an die Konstruktion und Herstellung von Druckbehltern und Druckbehlterteilen aus Gusseisen mit ei
10、ner Bruchdehnung von 15 % oder weniger This European Standard was approved by CEN on 1 January 2011 and includes Amendment 1 approved by CEN on 24 August 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard t
11、he status of a national 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, Fre
12、nch, German). A version 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
13、, Croatia, Cyprus, Czech 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
14、 and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref
15、. No. EN 15776:2011+A1:2015 EEN 15776:2011+A1:2015 (E) 2 Contents Page European foreword . 4 Introduction 5 1 Scope 6 2 Normative references 6 3 Terms, definitions, units and symbols. 7 3.1 Terms and definitions . 7 3.2 Symbols . 9 3.3 Inter relation of thicknesses definitions (!EN 13445-6:2014“) .
16、11 4 Materials, limitations and service conditions 11 4.1 Materials and limitations on temperature, maximum allowable pressure and energy content . 11 4.2 Cyclic loading . 13 5 Design requirements 14 5.1 Design principle 14 5.2 Conceptual design and construction drawings . 14 5.3 Static loading . 14
17、 5.3.1 General . 14 5.3.2 Design by formula (DBF) . 14 5.3.3 Design by analysis (DBA). 15 5.3.4 Design by experiment (DBE) 15 5.4 Temperature reduction factor 16 5.5 Wall thickness reduction factor 16 5.6 Design for external pressure . 16 5.7 Testing conditions . 17 5.8 Design methods 17 5.8.1 Gener
18、al . 17 5.8.2 Static loading . 17 5.8.3 Dynamic loading . 19 5.9 Construction details 24 5.9.1 Reinforcement of openings in cylinders, flat ends, dished ends, etc. 24 5.9.2 Fillet radius 24 5.9.3 Dished cover 24 5.10 Technical documentation 24 5.10.1 General . 24 5.10.2 Information to be contained i
19、n the technical documentation . 24 5.10.3 Test reports 26 5.10.4 Technical/manufacturing schedule 26 5.10.5 Design review 26 6 Founding, material and casting testing 27 6.1 Founding 27 6.1.1 General . 27 6.1.2 Welding 27 6.2 Material testing . 27 DIN EN 15776:2016-01 EN 15776:2011+A1:2015 (E) 3 6.2.
20、1 General . 27 6.2.2 Frequency and number of tests . 27 6.2.3 Inspection documents . 28 6.3 Casting testing 28 6.3.1 General . 28 6.3.2 Surface imperfections . 28 6.3.3 Cracks, laps, cold shot and non-fused chaplets 28 6.3.4 Ultrasonic testing and/or sectioning . 29 6.3.5 Liquid penetrant testing 29
21、 6.3.6 Surface roughness 29 6.3.7 Minimum wall thickness 29 6.3.8 Wall thickness tolerances 29 6.3.9 Other dimensions . 29 6.3.10 Qualification of testing personnel 29 7 Final assessment . 30 7.1 General . 30 7.2 Hydraulic test pressure 30 8 Pressure vessels assembled of a combination of parts in di
22、fferent materials . 30 9 Marking and documentation 30 9.1 Marking of castings 30 9.2 Name plate for the complete pressure vessel 30 9.3 Documentation 31 Annex A (normative) Technical data for design calculations 32 Annex B (informative) Recommendations for in-service validation and inspection . 35 B
23、.1 Purpose 35 B.2 Tests during operation . 35 Annex C (informative) Examples of fatigue design curves. 36 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC . 39 Bibliography . 40 DIN EN 15776:2016-01 EN 15776:2011+A1:2015 (E) 4
24、 European foreword This document (EN 15776:2011+A1:2015) has been prepared by Technical Committee CEN/TC 54 “Unfired 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 e
25、ndorsement, at the latest by April 2016, and conflicting national standards shall be withdrawn at the latest by April 2016. 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 ident
26、ifying any or all such patent rights. This document supersede EN 15776:2011. This document includes Amendment 1 approved by CEN on 2015-08-24. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. This document has been prepared under a mandate given to
27、 CEN by the European 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. According to the CEN-CENELEC Internal Regulations, the nationa
28、l standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithua
29、nia, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 15776:2016-01 EN 15776:2011+A1:2015 (E) 5 Introduction !This standard is a stand-alone document and may be used for pressure equipment with ce
30、rtain restrictions and limitations. NOTE For the design and fabrication of cast iron pressure equipment standards with higher elongations and ductility, see EN 13445-6:2014.“ Attention is drawn to the references to !EN 13445-6:2014“for design and fabrication according to specific grades of material
31、standards !EN 1563:2011“and !EN 13835:2012“which are found in some clauses of this standard, EN 15776. Requirements for the design, material, manufacturing and testing of pressure vessels and pressure vessel parts made from ferritic or austenitic spheroidal graphite cast iron grades with an elongati
32、on after fracture higher than 15 % are given in !EN 13445-6:2014“. Cast iron with elongation after fracture equal or less than 15 % may only be used for pressure equipment when operational and technical advantages are dictating its use instead of the cast iron grades given in !EN 13445-6:2014“with e
33、longation after fracture higher than 15 %. DIN EN 15776:2016-01 EN 15776:2011+A1:2015 (E) 6 1 Scope This European Standard specifies requirements for the design, material, manufacturing and testing of pressure vessels and pressure vessel parts made from materials for which details are specified from
34、 the following material standards for specific grades which meet the criterion of an elongation after fracture less than or equal to 15 %: !EN 1561:2011“, Founding Grey cast irons; !EN 1563:2011“, Founding Spheroidal graphite cast irons; !EN 13835:2012“, Founding Austenitic cast irons. The allowed c
35、ontent of the vessel or pressure part is a fluid of group 2 only, according to the Directive 97/23/EC. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the l
36、atest edition of the referenced document (including any amendments) applies. !EN 764-5:2014, Pressure equipment Part 5: Inspection documentation of metallic materials and compliance with the material specification“ !EN 1370:2011, Founding Examination of surface condition“ !EN 1371-1:2011, Founding L
37、iquid penetrant testing Part 1: Sand, gravity die and low pressure die castings“ !EN 1559-1:2011“, Founding Technical conditions of delivery Part 1: General !EN 1559-3:2011“, Founding Technical conditions of delivery Part 3: Additional requirements for iron castings !EN 1561:2011“, Founding Grey cas
38、t irons !EN 1563:2011“, Founding Spheroidal graphite cast irons !EN 12680-3:2011, Founding Ultrasonic testing Part 3: Spheroidal graphite cast iron castings“ !EN 13445-3:2014“, Unfired pressure vessels Part 3: Design !EN 13445-5:2014“, Unfired pressure vessels Part 5: Inspection and testing !EN 1344
39、5-6:2014“, Unfired pressure vessels Part 6: Requirements for the design and fabrication of pressure vessels and pressure parts constructed from spheroidal graphite cast iron !EN 13835:2012“, Founding Austenitic cast irons !EN ISO 8062-3:2007“, Geometrical Product Specifications (GPS) Dimensional and
40、 geometrical tolerances for moulded parts Part 3: General dimensional and geometrical tolerances and machining allowances for castings (ISO 8062-3:2007) DIN EN 15776:2016-01 EN 15776:2011+A1:2015 (E) 7 3 Terms, definitions, units and symbols 3.1 Terms and definitions For the purposes of this documen
41、t, the following terms and definitions apply. 3.1.1 grey cast iron cast material, mainly iron and carbon based, carbon being present mainly in the form of flake (lamellar) graphite particles (!EN 1561:2011“) !Note 1 to entry:“ Grey cast iron is also known as flake graphite cast iron, and less common
42、ly as lamellar graphite cast iron. !Note 2 to entry: Grey cast irons contain 2,0 % - 4,5 % carbon and 1 % - 3 % silicon. The structure consists of branched and interconnected graphite flakes in a matrix which is pearlite, ferrite or a mixture “ 3.1.2 spheroidal graphite cast iron cast material, main
43、ly iron and carbon-based, the carbon being present mainly in the form of spheroidal graphite particles (!EN 1563:2011“) !Note 1 to entry:“ Spheroidal graphite cast iron is also known as ductile iron, and less commonly as nodular iron. !Note 2 to entry: The mechanical properties of grey irons can be
44、greatly improved if the graphite shape is modified if molten iron, having a composition in the range 3,2 % - 4,5 % carbon and 1,8 % - 2,8 % silicon, is treated with magnesium. This produces castings with graphite in spheroidal form instead of flakes, known as nodular, spheroidal graphite or ductile
45、iron. Nodular irons are available with pearlite, ferrite or pearlite-ferrite matrices which offer a combination of greater ductility and higher tensile strength than grey cast irons.“ 3.1.3 austenitic cast iron !cast material with an austenitic matrix which is iron and carbon and silicon based and a
46、lloyed with nickel and manganese, copper and/or chromium in order to stabilize the austenitic structure at room temperature Note 1 to entry: The graphite can be present in flake or spheroidal form (EN 13835:2012).“ 3.1.4 relevant wall thickness !wall thickness representative of the casting, defined
47、for the determination of the size of the cast samples to which the guaranteed mechanical properties apply“ 3.1.5 critical zone highly stressed area where a fracture is expected to occur in a burst test NOTE 1 It can be caused, for example, by any of the following: sudden change in cross section; sha
48、rp edges; sharp radii; DIN EN 15776:2016-01 EN 15776:2011+A1:2015 (E) 8 peak stresses; bending stresses; stresses due to other than membrane stress; changes in curvature. NOTE 2 A critical zone is analysed by any appropriate method, e.g. holographic, interferometric method, strain gauge methods, bur
49、st test, fatigue testing, FEM analysis, etc. NOTE 3 Additionally, thermal gradients and thermal stresses due to different operating wall temperatures are to be considered in defining critical zones. 3.1.6 purchaser individual or organisation that buys pressure equipment, including assemblies or parts, for its own use or on behalf of the user and/or operator 3.1.7 manufacturer individual or organisation responsible for the design, fabrication, testing, inspection, installation of
