1、BS EN10028-2:2009ICS 77.140.30; 77.140.50NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDFlat products madeof steels for pressurepurposesPart 2: Non-alloy and alloy steelswith specified elevated temperaturepropertiesLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA ST
2、ANDARDS, 15/10/2009 07:30, Uncontrolled Copy, (c) BSIThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 30 June2009. BSI 2009ISBN 978 0 580 64185 5Amendments/corrigenda issued since publicationDate CommentsBS EN 10028-2:2009National forewordThis Bri
3、tish Standard is the UK implementation of EN 10028-2:2009. Itsupersedes BS EN 10028-2:2003 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ISE/73/2, Steel plates and bars for pressure purposes.A list of organizations represented on this committee can be
4、 obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA S
5、TANDARDS, 15/10/2009 07:30, Uncontrolled Copy, (c) BSIBS EN 10028-2:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 10028-2June 2009ICS 77.140.30; 77.140.50 Supersedes EN 10028-2:2003 English VersionFlat products made of steels for pressure purposes - Part 2:Non-alloy and alloy steels with spe
6、cified elevated temperaturepropertiesProduits plats en aciers pour appareils pression - Partie2: Aciers non allis et allis avec caractristiquesspecifies temprature leveFlacherzeugnisse aus Druckbehltersthlen - Teil 2:Unlegierte und legierte Sthle mit festgelegtenEigenschaften bei erhhten Temperature
7、nThis European Standard was approved by CEN on 14 May 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical referenc
8、es concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into i
9、ts own language and notified to the CEN Management Centre has the same status as theofficial versions.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, Lith
10、uania, 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: Avenue Marnix 17, B-1000 Brussels 2009 CEN A
11、ll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10028-2:2009: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/10/2009 07:30, Uncontrolled Copy, (c) BSIBS EN 10028-2:2009EN 10028-2:2009 (E) 2 Contents Page Foreword 3 1 Scope 4 2
12、 Normative references 4 3 Terms and definitions . 4 4 Dimensions and tolerances on dimensions . 4 5 Calculation of mass . 4 6 Classification and designation . 4 6.1 Classification 4 6.2 Designation 4 7 Information to be supplied by the purchaser . 5 7.1 Mandatory information 5 7.2 Options . 5 7.3 Ex
13、ample for ordering . 5 8 Requirements . 6 8.1 Steelmaking process . 6 8.2 Delivery condition 6 8.3 Chemical composition 6 8.4 Mechanical properties . 8 8.5 Surface condition. 9 8.6 Internal soundness 9 8.7 Resistance to hydrogen induced cracking . 9 8.8 Embrittlement of CrMo steels . 9 9 Inspection
14、. 9 9.1 Types of inspection and inspection documents 9 9.2 Tests to be carried out 9 9.3 Retests 9 10 Sampling . 9 11 Test methods 10 12 Marking . 10 Annex A (informative) Guidelines for heat treatment 15 Annex B (informative) Critical time temperature parameter Pcrit.and possible combinations of st
15、ress relieving temperature and holding time 16 Annex C (informative) Reference data of strength values for 1 % (plastic) creep strain and creep rupture 17 Annex D (normative) Evaluation of resistance to hydrogen induced cracking 22 Annex E (normative) Step cooling test . 23 Annex ZA (informative) Re
16、lationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC . 24 Bibliography 25 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/10/2009 07:30, Uncontrolled Copy, (c) BSIBS EN 10028-2:2009EN 10028-2:2009 (E) 3 Foreword This document (EN 10028-2:2009) h
17、as been prepared by Technical Committee ECISS/TC 22 “Steels for pressure purposes - Qualities”, the secretariat 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 December 20
18、09, and conflicting national standards shall be withdrawn at the latest by December 2009. 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 righ
19、ts. This document supersedes EN 10028-2:2003. This European Standard consists of the following parts, under the general title Flat products made of steels for pressure purposes: Part 1: General requirements Part 2: Non-alloy and alloy steels with specified elevated temperature properties Part 3: Wel
20、dable fine grain steels, normalized Part 4: Nickel alloy steels with specified low temperature properties Part 5: Weldable fine grain steels, thermomechanically rolled Part 6: Weldable fine grain steels, quenched and tempered Part 7: Stainless steels NOTE The clauses marked by two points () contain
21、information relating to agreements that may be made at the time of enquiry and order. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 97/23/EC. For relationship with E
22、U Directive 97/23/EC, see informative Annex ZA, which is an integral part of this document. 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, Cyprus, Czech Repu
23、blic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDAR
24、DS, 15/10/2009 07:30, Uncontrolled Copy, (c) BSIBS EN 10028-2:2009EN 10028-2:2009 (E) 4 1 Scope This European Standard specifies requirements for flat products for pressure equipment made of weldable non-alloy and alloy steels with elevated temperature properties as specified in Table 1. The require
25、ments and definitions of EN 10028-1:2007 + A1:2009 also apply. NOTE Once this European Standard is published in the EU Official Journal (OJEU) under Directive 97/23/EC, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 97/23/EC is limited to technical data of materia
26、ls in this European Standard (Part 1 and this Part 2 of the series) and does not presume adequacy of the material to a specific item of equipment. Consequently, the assessment of the technical data stated in this material standard against the design requirements of this specific item of equipment to
27、 verify that the ESRs of Directive 97/23/EC are satisfied, needs to be done. 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 latest edition of the refer
28、enced document (including any amendments) applies. EN 10028-1:2007 + A1:2009, Flat products made of steels for pressure purposes Part 1: General requirements EN 10204:2004, Metallic products Types of inspection documents EN 10229:1998, Evaluation of resistance of steel products to hydrogen induced c
29、racking (HIC) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10028-1:2007 + A1:2009 apply. 4 Dimensions and tolerances on dimensions See EN 10028-1:2007 + A1:2009. 5 Calculation of mass See EN 10028-1:2007 + A1:2009. 6 Classification and designation
30、6.1 Classification In accordance with EN 10020, the grades P235GH, P265GH, P295GH and P355GH are non-alloy quality steels. All other grades are alloy special steels. 6.2 Designation See EN 10028-1:2007 + A1:2009. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/10/2009 07:30, Uncontrolled C
31、opy, (c) BSIBS EN 10028-2:2009EN 10028-2:2009 (E) 5 7 Information to be supplied by the purchaser 7.1 Mandatory information See EN 10028-1:2007 + A1:2009. 7.2 Options A number of options are specified in this European Standard and listed below. Additionally the relevant options of EN 10028-1:2007 +
32、A1:2009 apply. If the purchaser does not indicate a wish to implement any of these options at the time of enquiry and order, the products shall be supplied in accordance with the basic specification (see also EN 10028-1:2007 + A1:2009). 1) lower copper content and maximum tin content (see Table 1, f
33、ootnote b); 2) minimum chromium content of 0,80% (see Table 1, footnote f); 3) maximum carbon content of 0,17% for product thicknesses greater than 150 mm (see Table 1, footnote g); 4) tests in the simulated normalized condition (see 8.2.2); 5) delivery conditions deviating from those specified in T
34、able 3 (see 8.2.2 and 8.2.3); 6) maximum carbon equivalent value for P235GH, P265GH, P295GH and P355GH (see 8.3.3); 7) specification of a minimum impact energy of 40 J (see Table 3); 8) mechanical properties for product thicknesses 250 mm (see Table 3, footnote a); 9) specification of the delivery c
35、ondition +QT where the usual delivery condition is +NT (see Table 3, footnote c and Table 4, footnote c); 10) additional impact energy values (see Table 3, footnote f); 11) Rp0,2 values at elevated temperature for increased product thicknesses (see Table 4, footnote b); 12) HIC test in accordance wi
36、th EN 10229 (see 8.7); 13) step cooling test in accordance with Annex E (see 8.8); 14) mid thickness test pieces for the impact test (see Clause 10); 7.3 Example for ordering 10 plates with nominal dimensions, thickness = 50 mm, width = 2 000 mm, length = 10 000 mm, made of a steel grade with the na
37、me 16Mo3 and the number 1.5415 as specified in EN 10028-2, to be delivered untreated, inspection document 3.1 as specified in EN 10204: 10 plates 50 x 2 000 x 10 000 EN 10028-2 16Mo3+AR - Inspection document 3.1 or 10 plates 50 x 2 000 x 10 000 EN 10028-2 1.5415+AR Inspection document 3.1. Licensed
38、Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/10/2009 07:30, Uncontrolled Copy, (c) BSIBS EN 10028-2:2009EN 10028-2:2009 (E) 6 8 Requirements 8.1 Steelmaking process See EN 10028-1:2007 + A1:2009. 8.2 Delivery condition 8.2.1 Unless otherwise agreed at the time of enquiry and order, the products
39、covered by this European Standard shall be supplied in the usual conditions given in Table 3 (see 8.2.3). 8.2.2 Normalizing may, at the discretion of manufacturer, be replaced with normalizing rolling for the steel grades P235GH, P265GH, P295GH and P355GH. In this case, additional tests in the simul
40、ated normalized condition with an agreed frequency of testing may be agreed at the time of enquiry and order to verify that the specified properties are complied with. 8.2.3 If so agreed at the time of enquiry and order, products made of steel grades P235GH, P265GH, P295GH, P355GH and 16Mo3 may also
41、 be delivered in the untreated condition. Products made of one of the other alloy grades may be supplied in the tempered or normalized condition or, in exceptional cases, in the untreated condition if so agreed (Annex A contains heat treatment information for the purchaser). In these cases, testing
42、shall be carried out on test pieces in the usual delivery condition as indicated in Table 3. NOTE The testing of the test pieces in a simulated heat treated condition does not discharge the processor from the obligation of providing proof of the specified properties in the finished product. 8.2.4 In
43、formation on welding is given in EN 1011-1 and EN 1011-2. NOTE Excessive post weld heat treatment (PWHT) conditions can decrease the mechanical properties. When in stress relieving the intended time temperature parameter P = Ts(20 + lg t) 10-3 ,where Tsis the stress relieving temperature in K and T
44、is the holding time in hours, exceeds the critical (Pcrit.) values in Annex B, the purchaser should in his enquiry and order inform the manufacturer accordingly and, where appropriate, tests on simulated heat treated samples can be agreed to check whether after such a treatment the properties specif
45、ied in this document can still be regarded as valid. 8.3 Chemical composition 8.3.1 The requirements of Table 1 shall apply for the chemical composition according to the cast analysis. 8.3.2 The product analysis shall not deviate from the specified values for the cast analysis as specified in Table
46、1 by more than the values given in Table 2. 8.3.3 A maximum value for the carbon equivalent may be agreed upon at the time of enquiry and order for steel grades P235GH, P265GH, P295GH and P355GH. In this case, the following formula shall apply for calculation of the carbon equivalent value (CEV): 15
47、CuNi5VMoCr6MnCCEV+=Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/10/2009 07:30, Uncontrolled Copy, (c) BSIBS EN 10028-2:2009EN 10028-2:2009 (E) 7 Table 1 Chemical composition (cast analysis) aSteel grade % by mass Steel name Steel number C Si Mn P max. S max. AltotalN Cr Cub Mo Nb Ni Ti
48、max. V Others P235GH 1.0345 0,16 0,35 0,60cto 1,20 0,025 0,010 0,020 0,012d 0,30 0,30 0,08 0,020 0,30 0,03 0,02 Cr+Cu+Mo+ Ni: 0,70 P265GH 1.0425 0,20 0,40 0,80cto 1,40 0,025 0,010 0,020 0,012d 0,30 0,30 0,08 0,020 0,30 0,03 0,02P295GH 1.0481 0,08 to 0,20 0,40 0,90cto 1,50 0,025 0,010 0,020 0,012d 0,
49、30 0,30 0,08 0,020 0,30 0,03 0,02 P355GH 1.0473 0,10 to 0,22 0,60 1,10 to 1,70 0,025 0,010 0,020 0,012d 0,30 0,30 0,08 0,040 0,30 0,03 0,0216Mo3 1.5415 0,12 to 0,20 0,35 0,40 to 0,90 0,025 0,010 e 0,012 0,30 0,30 0,25 to 0,35 - 0,30 - - - 18MnMo4-5 1.5414 0,20 0,40 0,90 to 1,50 0,015 0,005 e 0,012 0,30 0,30 0,45 to 0,60 - 0,30 - - - 20MnMoNi4-5 1.63110,15 to 0,23 0,40 1,00 to 1,50 0,0200,010e 0,012 0,20 0,200,45
