1、September 2009DEUTSCHE NORM English price group 13No part of this standard 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 77.140.30; 77.140.50
2、!$Y_m“1546074www.din.deDDIN EN 10028-2Flat products made of steels for pressure purposes Part 2: Non-alloy and alloy steels with specified elevated temperaturepropertiesEnglish version of DIN EN 10028-2:2009-09Flacherzeugnisse aus Druckbehltersthlen Teil 2: Unlegierte und legierte Sthle mit festgele
3、gten Eigenschaften bei erhhtenTemperaturenEnglische Fassung DIN EN 10028-2:2009-09SupersedesDIN EN 10028-2:2003-09 andDIN EN 10028-2 Corrigendum1:2006-08www.beuth.deDocument comprises 27 pagesDIN EN 10028-2:2009-09 National foreword This standard has been prepared by Technical Committee ECISS/TC 22
4、“Steels for pressure purposes Qualities” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Eisen und Stahl (Iron and Steel Standards Committee), Technical Committee NA 021-00-04-02 UA Sthle fr den Druckbehlterbau. This document specifies req
5、uirements for flat products for pressure equipment made of weldable non-alloy and alloy steels with elevated temperature properties. Amendments This standard differs from DIN EN 10028-2:2003-09 and DIN EN 10028-2 Corrigendum 1:2006-08 as follows: a) Information regarding the harmonization with Direc
6、tive 97/23/EC has been rendered more precise. b) The chemical composition of the non-alloy steels has been modified (maximum values for sulfur and niobium). c) An option for a minimum impact energy of 40 J has been specified. d) Annex ZA has been revised. e) The standard has been editorially revised
7、. Previous editions DIN 17155-1: 1951-10, 1959-01 DIN 17155-2: 1951-10, 1959x-01 DIN 17155: 1983-10 DIN 17155-2: 1964-03 Supplement, 1969-06 DIN EN 10028-2: 1993-04, 2003-09 DIN EN 10028-2 Corrigendum 1: 2006-08 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10028-2 June 2009 ICS 77.140.30;
8、77.140.50 Supersedes EN 10028-2:2003 English Version Flat products made of steels for pressure purposes Part 2: Non-alloy and alloy steels with specified elevated temperature properties Produits plats en aciers pour appareils pression Partie 2: Aciers non allis et allis avec caractristiques specifie
9、s temprature leve Flacherzeugnisse aus Druckbehltersthlen Teil 2: Unlegierte und legierte Sthle mit festgelegten Eigenschaften bei erhhten Temperaturen This European Standard was approved by CEN on 14 May 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate
10、 the conditions for giving this European Standard the 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 Management Centre or to any CEN member. This European Standard exis
11、ts in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions. CEN members are the national standards bod
12、ies of Austria, Belgium, Bulgaria, Cyprus, 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 and United Kingdom. EUR
13、OPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10028-2:2009: EEN 10028-2:2
14、009 (E) Contents Page Foreword 3 1 Scope 4 2 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 Ma
15、ndatory information 5 7.2 Options . 5 7.3 Example 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 Em
16、brittlement of CrMo steels . 9 9 Inspection . 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 par
17、ameter Pcrit.and possible combinations of stress 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
18、 cooling test . 23 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC . 24 Bibliography 25 2DIN EN 10028-2:2009-09 EN 10028-2:2009 (E) Foreword This document (EN 10028-2:2009) has been prepared by Technical Committee ECISS/TC 22
19、 “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 2009, and conflicting national standards shall be wit
20、hdrawn 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 rights. This document supersedes EN 10028-2:2003. This
21、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: Weldable fine grain steels, normalized Part 4: Nickel
22、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 information relating to agreements that may be made
23、 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 EU Directive 97/23/EC, see informative Annex ZA, whi
24、ch 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 Republic, Denmark, Estonia, Finland, France, Germany, G
25、reece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. 3DIN EN 10028-2:2009-09 EN 10028-2:2009 (E) 1 Scope This European Standard specifies requirements for
26、flat products for pressure equipment made of weldable non-alloy and alloy steels with elevated temperature properties as specified in Table 1. The requirements and definitions of EN 10028-1:2007 + A1:2009 also apply. NOTE Once this European Standard is published in the EU Official Journal (OJEU) und
27、er Directive 97/23/EC, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 97/23/EC is limited to technical data of materials 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.
28、 Consequently, the assessment of the technical data stated in this material standard against the design requirements of this specific item of equipment to verify that the ESRs of Directive 97/23/EC are satisfied, needs to be done. 2 Normative references The following referenced documents are indispe
29、nsable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 10028-1:2007 + A1:2009, Flat products made of steels for pressure purposes Part 1: General r
30、equirements EN 10204:2004, Metallic products Types of inspection documents EN 10229:1998, Evaluation of resistance of steel products to hydrogen induced cracking (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 Dim
31、ensions 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 6.1 Classification In accordance with EN 10020, the grades P235GH, P265GH, P295GH and P355GH are non-alloy quality steels. All other grades are al
32、loy special steels. 6.2 Designation See EN 10028-1:2007 + A1:2009. 4DIN EN 10028-2:2009-09 EN 10028-2:2009 (E) 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 bel
33、ow. Additionally the relevant options of EN 10028-1:2007 + 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) l
34、ower copper content and maximum tin content (see Table 1, footnote 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);
35、 5) delivery conditions deviating from those specified in Table 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 (s
36、ee Table 3, footnote a); 9) specification of the delivery condition +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 thickness
37、es (see Table 4, footnote b); 12) HIC test in accordance with 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 00
38、0 mm, length = 10 000 mm, made of a steel grade with the name 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
39、000 EN 10028-2 1.5415+AR Inspection document 3.1. 5DIN EN 10028-2:2009-09 EN 10028-2:2009 (E) 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 covered by this European Standard sh
40、all 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 simulated normalized condition with an ag
41、reed 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 be delivered in the untreated condi
42、tion. 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 shall be carried out on test pieces
43、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 Information on welding is given in EN
44、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 is the holding time in hours, exceed
45、s 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 specified in this document can still be re
46、garded 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 1 by more than the values given in T
47、able 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): 15CuNi5VMoCr6MnCCEV+=6DIN EN 10028-2:2
48、009-09 EN 10028-2:2009 (E) 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 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
49、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 0,30 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
