1、BS EN10028-5:2009ICS 77.140.30; 77.140.50NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDFlat products madeof steels for pressurepurposesPart 5: Weldable fine grain steels,thermomechanically rolledThis British Standardwas published under theauthority of the Stan
2、dardsPolicy and StrategyCommittee on 31 July2009. BSI 2009ISBN 978 0 580 64188 6Amendments/corrigenda issued since publicationDate CommentsBS EN 10028-5:2009National forewordThis British Standard is the UK implementation of EN 10028-5:2009. Itsupersedes BS EN 10028-5:2003 which is withdrawn.The UK p
3、articipation 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 obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a con
4、tract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 10028-5:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 10028-5June 2009ICS 77.140.30; 77.140.50 Supersedes EN 10028-5:2003 English VersionFlat product
5、s made of steels for pressure purposes - Part 5:Weldable fine grain steels, thermomechanically rolledProduits plats en acier pour appareils pression - Partie 5:Aciers soudables grains fins, laminsthermomcaniquementFlacherzeugnisse aus Druckbehltersthlen - Teil 5:Schweigeeignete Feinkornbausthle, the
6、rmomechanischgewalztThis 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 bibli
7、ographical references 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
8、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 bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland,
9、Italy, Latvia, Lithuania, 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
10、Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10028-5:2009: EBS EN 10028-5:2009EN 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
11、 5 Calculation of mass . 4 6 Classification and 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.
12、3 Chemical composition 6 8.4 Mechanical properties . 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) Relationshi
13、p between this European Standard and the Essential Requirements of EU Directive 97/23/EC 13 Bibliography 14 BS EN 10028-5:2009EN 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 secretaria
14、t 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 withdrawn at the latest by December 2009. Attention is drawn t
15、o 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 10028-5:2003. This European Standard consists of the following parts, under th
16、e 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 alloy steels with specified low temperature properties Part
17、 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 at the time of enquiry and order. This document has been p
18、repared 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, which is an integral part of this document. According to the C
19、EN/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, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
20、 Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 10028-5:2009EN 10028-5:2009 (E) 4 1 Scope This European Standard specifies the requirements for flat products for pressure equipments made of thermomechani
21、cally rolled steels as specified in Table 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
22、 intended the conditions for this should 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 Essentia
23、l Safety Requirements (ESRs) of Directive 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 th
24、is 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 indispensable for the application of this document. For dated reference
25、s, 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 requirements EN 10204:2004, Metallic products Types of inspection
26、 documents 3 Terms and definitions For 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
27、 6.1.1 This European Standard covers 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). BS EN 10028-5:2009EN 10028-5:2009 (E) 5 6.1.2 In acco
28、rdance with EN 10020 all the steels 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 documen
29、t and listed below. 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
30、+ A1:2009). 1) providing data on 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
31、 with nominal dimensions, thickness = 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 certificat
32、e 3.1 or 10 plates 50 x 2 000 x 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
33、 The steels specified in this European 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 incre
34、asing product thickness and strength level cold cracking can occur. Cold cracking is caused by the follo-wing factors in combination: BS EN 10028-5:2009EN 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 conc
35、entrations in the welded joint. 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 r
36、equirements, the electrode 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 stres
37、s relieving temperature in 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 su
38、ch a treatment the properties 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 t
39、he cast analysis as specified 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 +
40、A1:2009 and Clause 10) shall 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.
41、For possible verification, 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. BS EN 10028-5:2009EN 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
42、 Sampling See EN 10028-1:2007 + 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 sh
43、all also be agreed. 11 Test methods See EN 10028-1:2007 + A1:2009. 12 Marking See EN 10028-1:2007 + A1:2009. .BS EN 10028-5:2009EN 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.
44、 N max. Moe max. 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
45、 1,70 0,025 0,010 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 othe
46、r materials used 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 conten
47、t 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 + Nb + Ti shall not exceed a value of 0,15 %. gIf the carbon content is rest
48、ricted to 0,07 %, a maximum niobium content of 0,10 % is permitted. In this case, special care shall be taken to avoid problems in the heat affected zone at operation temperatures of 40 C and below or after PWHT. BS EN 10028-5:2009EN 10028-5:2009 (E) 9 Table 2 Permissible deviations of the chemical
49、composition in the results of the product analysis from the specified values applicable to the cast analysis Element Specified value in the cast analysis according to Table 1 % by mass Permissible deviationa of the product analysis % by mass C 0,16 + 0,02 Si 0,60 + 0,06 Mn 2,00 + 0,10 P 0,025 + 0,005 S 0,010 + 0,003 Al 0,020 - 0,005 N 0,020 + 0,002 Mo 0,20 + 0,03 Nb 0,10 + 0,01 Ni 0,50 + 0,05 Ti 0,05 + 0,01 V 0,10 + 0,01 Cr+Cu+Mo 0,60 + 0,10 V+Nb+Ti 0,15 + 0,03 aIf several product anal
