1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-22687-9 SANS 50028-5:2009Edition 1EN 10028-5:2009Edition 3SOUTH AFRICAN NATIONAL STANDARD Flat products made of steels for pressure purpos
4、es Part 5: Weldable fine grain steels, thermomechanically rolled This national standard is the identical implementation of EN 10028-5:2009 and is adopted with the permission of CEN, rue de Stassart 36, B-1050 Brussels. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X19
5、1 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 50028-5:2009 Edition 1 EN 10028-5:2009 Edition 3 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 1077, Engineering Materials Ferrous metal
6、s, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in December 2009. EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 10028-5June 2009ICS 77.140.30; 77.140.50 Supersedes EN 10028-5:2003 English Versi
7、onFlat products 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 Feinkor
8、nbausthle, thermomechanischgewalztThis 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 l
9、ists and bibliographical 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 resp
10、onsibility 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 bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Icel
11、and, Ireland, 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 Marn
12、ix 17, B-1000 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: 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 C
13、alculation 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 8.3 Ch
14、emical 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) Relationship be
15、tween this European Standard and the Essential Requirements of EU Directive 97/23/EC 13 Bibliography 14 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
16、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 to the possibility that
17、 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 the general title Flat p
18、roducts 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 5: Weldable fine grai
19、n 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 prepared under a mandat
20、e 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 CEN/CENELEC Internal Re
21、gulations, 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, Luxembourg, Malta, Ne
22、therlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. 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 Tabl
23、e 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 should
24、 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 Directiv
25、e 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 design
26、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. For u
27、ndated 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 For t
28、he 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 the
29、 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). EN 10028-5:2009 (E) 5 6.1.2 In accordance with EN 10020 all the steels specified in this docu
30、ment 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 the relevant options of E
31、N 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 suitable welding conditio
32、ns (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, thickness = 50 mm, width = 2 000
33、 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 10 000 EN 10028-5 1.8833 -
34、 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 European Standard are suitab
35、le 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 strength level cold cracking c
36、an occur. Cold cracking is caused by the follo-wing factors in combination: 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 joint. NOTE 2 When using recommendations as laid do
37、wn, 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 efficiency, the welding process and the weld meta
38、l 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 K and t is holding time in hours, exceeds the cri
39、tical 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 properties specified in this European Standard can still
40、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 specified in Table 1 by more than the values given in Ta
41、ble 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) shall apply. NOTE Optionally, a minimum impact energy
42、 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, see also EN 10028-1:2007 + A1:2009. 9 Inspection
43、9.1 Types of inspection and inspection documents See EN 10028-1:2007 + A1:2009. 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 10028-1:2007 + A1:2009. For the impact test, deviating from EN 10028-1:2007 +
44、 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 Test methods See EN 10028-1:2007 + A1:2009. 12 Marking See EN 10028-1:2
45、007 + A1:2009. .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. 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
46、 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 P460ML1 1.8837 0,020 0,005 P460ML2 1.8831 0,005 aElements not listed in this table shall not b
47、e 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 in steelmaking of these elements which may adversely affect the mechanical properties and usabi
48、lity. 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 a
49、pply 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 restricted 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. EN 10028-5:2009 (E) 9 Table 2 Permissible deviations of the chemical composition in the results of the product an
