1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 12953-2:2012Shell boilersPart 2: Materials for pressure parts of boilers and accessoriesBS EN 12953-2:2012 BRITISH STANDARDNational forewordThis British Standard is the UK
2、implementation of EN 12953-2:2012. It supersedes BS EN 12953-2:2002, which is withdrawn.The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e P V E / 2 , W a t e r T u b e A n d S h e l l B o i l e r s .A list of organizations represented on this committee can
3、be obtained 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 2012Published by BSI Standards Limited 2012ISBN 978 0 580 70580 9 ICS 23.020.01; 27.06
4、0.30 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2012.Amendments issued since publicationDate T e x t a f f e c t e dBS EN 12953-2:2012EUROPEAN STAN
5、DARD NORME EUROPENNE EUROPISCHE NORM EN 12953-2 March 2012 ICS 27.060.30 Supersedes EN 12953-2:2002English Version Shell boilers - Part 2: Materials for pressure parts of boilers and accessories Chaudires tubes de fume - Partie 2: Matriaux des parties sous pression des chaudires et des accessoires G
6、rowasserraumkessel - Teil 2: Werkstoffe fr drucktragende Kesselteile und Zubehr This European Standard was approved by CEN on 7 January 2012. 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 nat
7、ional 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 ve
8、rsion 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,
9、 Czech Republic, Denmark, Estonia, Finland, 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. EUROPEAN COMMITTEE FOR STANDARDIZATI
10、ON COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12953-2:2012: EBS EN 12953-2:2012EN 12953-2:2012 (E) 2 Conte
11、nts Page Foreword 31 Scope 52 Normative references 53 General requirements for material selection 63.1 General 63.2 Material specification 63.3 European Approvals for Materials (EAM) 73.4 Particular Material Appraisals (PMA) .74 Materials for pressure bearing parts .74.1 Shell boiler body 74.2 Valve
12、s and other forged or cast products 84.3 Bolting material 94.4 Flange material .94.5 Welding consumables 104.6 Material acceptance tests 104.7 Inspection documents 104.8 Marking for the main pressure-bearing parts 104.8.1 General . 104.8.2 Material supplied from the material manufacturer 104.8.3 Mat
13、erial supplied from a supplier other than the material manufacturer . 104.8.4 Material traceability during cutting and forming . 115 Materials for non pressure-bearing parts 11Annex A (informative) Significant technical changes between this European Standard and the previous edition 12Annex ZA (info
14、rmative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC . 13Bibliography . 14BS EN 12953-2:2012EN 12953-2:2012 (E) 3 Foreword This document (EN 12953-2:2012) has been prepared by Technical Committee CEN/TC 269 “Shell and water-tube boilers”, the s
15、ecretariat of which is held by DIN. 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 September 2012, and conflicting national standards shall be withdrawn at the latest by September 2012. Attention
16、 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 supersedes EN 12953-2:2002. This document has been prepared under a mandate given
17、 to 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. Annex A provides details of significant technical changes b
18、etween this European Standard and the previous edition. The European Standard EN 12953 concerning shell boilers consists of the following parts: Part 1: General; Part 2: Materials for pressure parts of boilers and accessories; Part 3: Design and calculation for pressure parts; Part 4: Workmanship an
19、d construction of pressure parts of the boiler; Part 5: Inspection during construction, documentation and marking of pressure parts of the boiler; Part 6: Requirements for equipment for the boiler; Part 7: Requirements for firing systems for liquid and gaseous fuels for the boiler; Part 8: Requireme
20、nts for safeguards against excessive pressure; Part 9: Requirements for limiting devices of the boiler and accessories; Part 10: Requirements for feedwater and boiler water quality; Part 11: Acceptance tests; Part 12: Requirements for grate firing systems for solid fuels for the boiler; Part 13: Ope
21、rating instructions; CR 12953 Part 14: Guideline for involvement of an inspection body independent of the manufacturer. BS EN 12953-2:2012EN 12953-2:2012 (E) 4 Although these parts may be obtained separately, it should be recognized that the parts are interdependent. As such, the design and manufact
22、ure of shell boilers requires the application of more than one part in order for the requirements of the European Standard to be satisfactorily fulfilled. For any questions arising when using these standards the Boiler Helpdesk of CEN/TC 269 may be contacted: http:/www.boiler-helpdesk.din.de Accordi
23、ng 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, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy
24、, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 12953-2:2012EN 12953-2:2012 (E) 5 1 Scope This European Standard specifies the following materials for the pressure bearing par
25、ts of shell boilers and equipment of shell boilers (e.g. valves), subjected to internal and external pressure including integral attachments (non pressure bearing parts): flat products (plate) and parts formed from flat products (e.g. shell, furnace, dished ends); tubes and parts formed from tubes (
26、e.g. bending, elbows, reducers, fittings); forgings and cast products ; bolting materials; welding consumables. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the e
27、dition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1092-1:2007, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 1: Steel flanges EN 1092-2:1997, Flanges and their
28、 joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 2: Cast iron flanges EN 1515-4:2009, Flanges and their joints Bolting Part 4: Selection of bolting for equipment subject to the Pressure Equipment Directive 97/23/EC EN 1561:1997, Founding Grey cast irons EN 156
29、3:1997, Founding Spheroidal graphite cast irons EN 1759-1:2004, Flanges and their joint Circular flanges for pipes, valves, fittings and accessories, Class designated Part 1: Steel flanges, NPS 1/2 to 24 EN 10028-2:2009, Flat products made of steels for pressure purposes Part 2: Non-alloy and alloy
30、steels with specified elevated temperature properties EN 10028-3:2009, Flat products made of steels for pressure purposes Part 3: Weldable fine grain steels, normalized EN 10204:2004, Metallic products Types of inspection documents EN 10213:2007, Steel castings for pressure purposes EN 10216-1:2002,
31、 Seamless steel tubes for pressure purposes Technical delivery conditions Part 1: Non-alloy steel tubes with specified room temperature properties EN 10216-2:2002+A2:2007, Seamless steel tubes for pressure purposes Technical delivery conditions Part 2: Non-alloy and alloy steel tubes with specified
32、elevated temperature properties EN 10217-1:2002+A1:2005, Welded steel tubes for pressure purposes Technical delivery conditions Part 1: Non-alloy steel tubes with specified room temperature properties BS EN 12953-2:2012EN 12953-2:2012 (E) 6 EN 10217-2:2002+A1:2005, Welded steel tubes for pressure pu
33、rposes Technical delivery conditions Part 2: Electric welded non-alloy and alloy steel tubes with specified elevated temperature properties EN 10217-5:2002+A1:2005, Welded steel tubes for pressure purposes Technical delivery conditions Part 5: Submerged arc welded non-alloy and alloy steel tubes wit
34、h specified elevated temperature properties EN 10220:2002, Seamless and welded steel tubes Dimensions and masses per unit length EN 10222-2:1999, Steel forging for pressure purposes Part 2: Ferritic and martensitic steels with specified elevated temperature properties EN 12074:2000, Welding consumab
35、les Quality requirements for manufacture, supply and distribution of consumables for welding and allied processes EN 12953-1:2012, Shell boilers Part 1: General EN 12953-4:2002, Shell boilers Part 4: Workmanship and construction of pressure parts of the boiler EN 13479:2004, Welding consumables Gene
36、ral product standard for filler metals and fluxes for fusion welding of metallic materials EN 14394:2005+A1:2008, Heating boilers Heating boilers with forced draught burners Nominal heat output not exceeding 10 MW and maximum operating temperature of 110 C CEN ISO/TR 15608:2005, Welding Guidelines f
37、or a metallic material grouping system (ISO/TR 15608:2005) CEN ISO/TR 20172:2009, Welding - Grouping systems for materials - European materials (ISO 20172:2009) 3 General requirements for material selection 3.1 General The materials for the boiler and the parts of the boiler selected by the manufact
38、urer shall fulfil requirements specified in the order and the requirements of this European Standard. 3.2 Material specification The selection of materials for pressure parts shall be in accordance with: a) Harmonized European Standards (see Clause 4); b) European approvals for materials (see 3.3);
39、c) Particular Material Appraisals (see 3.4). NOTE If relevant, the manufacturer will issue a technical specification with additional requirements such as tolerances, non-destructive examinations (NDE), etc. Dimensions and tolerances for tubes are given in EN 10220, for flat plates in EN 10029 or EN
40、10051. Deviations to dimensional and tolerances aspects of these three standards are possible by agreement between the boiler manufacturer and the supplier. The manufacturer shall specify: the type of inspection document (material certificate) according to EN 10204 (see also 4.7); any additional ins
41、pection requirements (e.g. second party/customer inspection). BS EN 12953-2:2012EN 12953-2:2012 (E) 7 3.3 European Approvals for Materials (EAM) European approvals for materials are intended for repeated use. NOTE 1 References of available EAM are published in the Official Journal of the European Un
42、ion. NOTE 2 EAM may be established in accordance with EN 764-4. 3.4 Particular Material Appraisals (PMA) Particular material appraisals shall be applied for materials: used in special cases not covered in 3.2 a) and b), not intended for frequent use. NOTE PMA may be established in accordance with e.
43、g. EN 764-4. 4 Materials for pressure bearing parts 4.1 Shell boiler body For typical components of the shell boiler body manufactured from flat products and tubes see EN 12953-1:2012, Figure 1. Cast iron and cast steel are not permitted for these components. The material shall be ordered and delive
44、red in accordance with relevant harmonized European Standards given in Table 1, EAM or PMA. The additional requirements given in this standard shall be taken into account. BS EN 12953-2:2012EN 12953-2:2012 (E) 8 Table 1 Grades of EN steels suitable for use on shell boilers Product form Standard Grad
45、eaMaterial number Flat products (plate) EN 10028-2 P235GH P265GH P295GH P355GH 16Mo3c1.0345 1.0425 1.0481 1.0473 1.5415 EN 10028-3 P275NH cP355NH c1.0487 1.0565 Tube (Seamless) EN 10216-1 b P195TR2 P235TR2 P265TR2 1.0108 1.0255 1.0259 EN 10216-2 P195GHP235GH P265GH 16Mo3 1.0348 1.0395 1.0425 1.5415
46、Tube (Welded) EN 10217-1 bP195TR2 P235TR2 P265TR2 1.0108 1.0255 1.0259 EN 10217-2 P195GHP235GH P265GH 1.0348 1.0345 1.0425 EN 10217-5 P235GHP265GH 1.0345 1.0425 Forging EN 10222-2 P245GHP280GH 16Mo3 1.0352 1.0426 1.5415 aGroupings of metallic materials for welding see CEN ISO/TR 15608 and CEN ISO/TR
47、 20172. bThis material can only be used for smoke tubes (both plain and stay). cNot permitted for furnaces. For Low Pressure Boilers (LPB), material S235JR according to EN 10025-2 can be used with particular material appraisals under the conditions according to 5.2.1 of EN 14394:2005+A1:2008. 4.2 Va
48、lves and other forged or cast products The materials for valves and other forged or cast products shall be suitable for their design and operating conditions. Materials and limits of use are given in Table 2. The limits determined by the manufacturer of the valves and other forged or cast products s
49、hall be taken into account. BS EN 12953-2:2012EN 12953-2:2012 (E) 9 Table 2 Grades of materials for valves and other forged or cast products Material Standard Grades Limits Grey cast iron (lamellar form) EN 1561aEN-GJL-200 and 250 Max DN 200 PS max 13 bar TS max 220 C Spheroidal graphite cast iron EN 1563 EN-GJS-350 and 400 Max DN 200 PS max 40 bar TS max 350 C Cast steel EN 10213 GP240GH According to the mat
