1、September 2009DEUTSCHE NORM English price group 9No 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_j“1546071www.din.deDDIN EN 10028-5Flat products made of steels for pressure purposes Part 5: Weldable fine grain steels, thermomechanically rolledEnglish version of DIN EN 10028-5:2009-09Flacherzeugnisse aus Druckbehltersthlen Teil 5: Schweigeeignete Feinkornbausthle, thermomechanisch gewalztEngl
3、ische Fassung DIN EN 10028-5:2009-09SupersedesDIN EN 10028-5:2003-09www.beuth.deDocument comprises pages16DIN EN 10028-5:2009-09 National foreword This standard has been prepared by Technical Committee ECISS/TC 22 “Steels for pressure purposes Qualities” (Secretariat: DIN, Germany). The responsible
4、German body involved in its preparation was the Normenausschuss Eisen und Stahl (Iron and Steel Standards Committee), Technical Committees NA 021-00-04-02 UA Sthle fr den Druckbehlterbau. This document specifies requirements for flat products for pressure equipment made of thermomechanically rolled
5、steels. Amendments This standard differs from DIN EN 10028-5:2003-09 as follows: a) Information regarding the harmonization with Directive 97/23/EC has been rendered more precise. b) The chemical composition has been modified (the maximum values for the sulfur content have been lowered). c) The manu
6、facturer has now the option for increased maximum manganese and niobium contents if the maximum carbon content is restricted. d) An option has been specified for providing data on suitable welding conditions. e) An option for a minimum impact energy of 40 J has been specified. f) Annex ZA has been r
7、evised. g) The standard has been editorially revised. Previous editions DIN EN 10028-5: 1997-02, 2003-09 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10028-5 June 2009 ICS 77.140.30; 77.140.50 Supersedes EN 10028-5:2003 English Version Flat products made of steels for pressure purposes Par
8、t 5: Weldable fine grain steels, thermomechanically rolled Produits plats en acier pour appareils pression Partie 5: Aciers soudables grains fins, lamins thermomcaniquement Flacherzeugnisse aus Druckbehltersthlen Teil 5: Schweigeeignete Feinkornbausthle, thermomechanisch gewalzt This European Standa
9、rd 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 references concerning such n
10、ational standards 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 translation under the responsibility of a CEN member into its own language a
11、nd 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, Lithuania, Luxembour
12、g, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of
13、 exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10028-5:2009: EEN 10028-5:2009 (E) 2 Contents page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 4 4 Dimension and tolerances 4 5 Calculation of mass . 4 6 Classification and
14、 designation . 4 6.1 Classification 4 6.2 Designation 5 7 Information to be supplied by the purchaser . 5 7.1 Mandatory information 5 7.2 Options . 5 7.3 Example for ordering . 5 8 Requirements . 5 8.1 Steelmaking process . 5 8.2 Delivery condition 5 8.3 Chemical composition 6 8.4 Mechanical propert
15、ies . 6 8.5 Surface condition. 6 8.6 Internal soundness 6 9 Inspection . 6 9.1 Types of inspection and inspection documents 6 9.2 Tests to be carried out 7 9.3 Retests 7 10 Sampling . 7 11 Test methods 7 12 Marking . 7 Annex ZA (informative) Relationship between this European Standard and the Essent
16、ial Requirements of EU Directive 97/23/EC 13 Bibliography 14 DIN EN 10028-5:2009-09 EN 10028-5:2009 (E) 3 Foreword This document (EN 10028-5:2009) has been prepared by Technical Committee ECISS/TC 22 “Steels for pressure purposes - Qualities”, the secretariat of which is held by DIN. This European S
17、tandard 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 withdrawn at the latest by December 2009. Attention is drawn to the possibility that some of the element
18、s 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 10028-5:2003. This European Standard consists of the following parts, under the general title Flat products made of stee
19、ls 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 alloy steels with specified low temperature properties Part 5: Weldable fine grain steels, thermomech
20、anically 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 at the time of enquiry and order. This document has been prepared under a mandate given to CEN by th
21、e 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, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the natio
22、nal standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, P
23、oland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 10028-5:2009-09 EN 10028-5:2009 (E) 4 1 Scope This European Standard specifies the requirements for flat products for pressure equipments made of thermomechanically rolled steels as specified in T
24、able 1. The steels are not suitable for hot forming. NOTE 1 At the time of publication of this European Standard, no sufficient data for the standardization of the elevated temperature properties of these steels was available. If their use at such temperatures is intended the conditions for this sho
25、uld be specially agreed between the interested parties. The requirements of EN 10028-1:2007 + A1:2009 also apply. NOTE 2 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 Direc
26、tive 97/23/EC is limited to technical data of materials in this European Standard (Part 1 and this Part 5 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 desi
27、gn 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 indispensable for the application of this document. For dated references, only the edition cited applies. Fo
28、r 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 requirements EN 10204:2004, Metallic products Types of inspection documents 3 Terms and definitions Fo
29、r the purposes of this document, the terms and definitions given in EN 10028-1:2007 + A1:2009 apply. 4 Dimension and tolerances 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 6.1.1 This European Standard covers
30、the steel grades given in Table 1 in three qualities: a) the basic series (P.M) b) series with low temperature properties down to -40 C (P.ML1); c) series with low temperature properties down to -50 C (P.ML2). DIN EN 10028-5:2009-09 EN 10028-5:2009 (E) 5 6.1.2 In accordance with EN 10020 all the ste
31、els specified in this document are alloy special steels. 6.2 Designation See EN 10028-1:2007 + A1:2009. 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 document and listed below. Additionally
32、 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) providing data on
33、 suitable welding conditions (see 8.2.3) ; 2) maximum carbon equivalent (see 8.3.3); 3) specification of a minimum impact energy of 40 J (see Note to 8.4 and Table 5); 4) mid thickness test pieces for the impact test (see Clause 10). 7.3 Example for ordering 10 plates with nominal dimensions, thickn
34、ess = 50 mm, width = 2 000 mm, length = 10 000 mm, made of a steel grade with the name P355ML2 and the number 1.8833 as specified in EN 10028-5, inspection certificate 3.1 as specified in EN 10204: 10 plates 50 x 2 000 x 10 000 EN 10028-5 P355ML2 Inspection certificate 3.1 or 10 plates 50 x 2 000 x
35、10 000 EN 10028-5 1.8833 - Inspection certificate 3.1. 8 Requirements 8.1 Steelmaking process See EN 10028-1:2007 + A1:2009. 8.2 Delivery condition 8.2.1 The products covered by this European Standard shall be supplied in the thermomechanically rolled condition. 8.2.2 The steels specified in this Eu
36、ropean Standard are suitable for welding processes in current use (see Notes 1 to 3 to 8.2.3). 8.2.3 The manufacturer shall, if requested, provide the purchaser with data on suitable welding conditions determined on the basis of weld procedure tests. NOTE 1 With increasing product thickness and stre
37、ngth level cold cracking can occur. Cold cracking is caused by the follo-wing factors in combination: DIN EN 10028-5:2009-09 EN 10028-5:2009 (E) 6 a) the amount of diffusible hydrogen in the weld metal; b) brittle structure of the heat affected zone; c) tensile stress concentrations in the welded jo
38、int. NOTE 2 When using recommendations as laid down, for example in EN 1011-1 and EN 1011-2, the recommended welding conditions and the various welding ranges of the steel grades can be determined depending on the product thickness, the applied welding energy, the design requirements, the electrode
39、efficiency, the welding process and the weld metal properties. NOTE 3 Excessive post weld heat-treatment (PWHT) conditions can decrease the mechanical properties. Where in stress relieving the intended time temperature parameter P = Ts(20 + lg t)x10-3, where Tsis the stress relieving temperature in
40、K and t is holding time in hours, exceeds the critical value of Pcrit. = 17,3 the purchaser should in his enquiry and order inform the manufacturer accordingly and, where appropriate, tests on simulated post weld heat treated samples can be agreed to check whether after such a treatment the properti
41、es specified in this European Standard can still be regarded as valid. 8.3 Chemical composition 8.3.1 The requirements of Table 1 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 specifi
42、ed in Table 1 by more than the values given in Table 2. 8.3.3 A maximum value for the carbon equivalent in accordance with Table 3 may be agreed upon at the time of enquiry and order. 8.4 Mechanical properties The values given in Tables 4 and 5 (see also EN 10028-1:2007 + A1:2009 and Clause 10) shal
43、l apply. NOTE Optionally, a minimum impact energy value of 40 J may be specified for temperatures where lower minimum values are specified (see Table 5, footnote a). 8.5 Surface condition See EN 10028-1:2007 + A1:2009. 8.6 Internal soundness See EN 10028-1:2007 + A1:2009. For possible verification,
44、see also EN 10028-1:2007 + A1:2009. 9 Inspection 9.1 Types of inspection and inspection documents See EN 10028-1:2007 + A1:2009. DIN EN 10028-5:2009-09 EN 10028-5:2009 (E) 7 9.2 Tests to be carried out See EN 10028-1:2007 + A1:2009. 9.3 Retests See EN 10028-1:2007 + A1:2009. 10 Sampling See EN 10028
45、-1:2007 + A1:2009. For the impact test, deviating from EN 10028-1:2007 + A1:2009, Table 3, footnote f, the preparation of test pieces taken from the mid thickness may be agreed at the time of enquiry and order. In this case, test temperatures and minimum impact energy values shall also be agreed. 11
46、 Test methods See EN 10028-1:2007 + A1:2009. 12 Marking See EN 10028-1:2007 + A1:2009. .DIN EN 10028-5:2009-09 EN 10028-5:2009 (E) 8 Table 1 Chemical composition (cast analysis)a Steel grade Content, % by massSteel name Steel number C max. Si max. Mnbmax. P max. S max. Altotalc min. N max. Moe max.
47、Nbfmax. Ni max. Tif max.Vf max. Other P355M 1.8821 0,14 0,50 1,60 0,025 0,010 0,020d 0,015 0,20 0,05g 0,50 0,05 0,10 e P355ML1 1.8832 0,020 0,008 P355ML2 1.8833 0,005 P420M 1.8824 0,16 0,50 1,70 0,025 0,010 0,020 P420ML1 1.8835 0,020 0,008 P420ML2 1.8828 0,005 P460M 1.8826 0,16 0,60 1,70 0,025 0,010
48、 P460ML1 1.8837 0,020 0,005 P460ML2 1.8831 0,005 aElements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate measures shall be taken to prevent the addition from scrap and other materials used
49、in steelmaking of these elements which may adversely affect the mechanical properties and usability. b For each reduction of 0,02 % below the maximum carbon content, an increase of 0,05 % Mn above the specified maximum value is permitted, up to a maximum of 2,00 % Mn. cThe Al content of the cast shall be determined and given in the inspection document. dThe minimum value for Altotaldoes not apply if adequate contents of other nitrogen-fixing elements are present. e(Cr + Cu + Mo) 0,60 % fThe total of V
