1、September 2009DEUTSCHE NORM English price group 10No 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_h“1546069www.din.deDDIN EN 10028-6Flat products made of steels for pressure purposes Part 6: Weldable fine grain steels, quenched and temperedEnglish version of DIN EN 10028-6:2009-09Flacherzeugnisse aus Druckbehltersthlen Teil 6: Schweigeeignete Feinkornbausthle, vergtetEnglische Fassung DIN EN
3、 10028-6:2009-09SupersedesDIN EN 10028-6:2003-10www.beuth.deDocument comprises pages15DIN EN 10028-6:2009-09 National foreword This standard has been prepared by Technical Committee ECISS/TC 22 “Steels for pressure purposes Qualities” (Secretariat: DIN, Germany). The responsible German body involved
4、 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 weldable fine grain steels. Amendments This st
5、andard differs from DIN EN 10028-6:2003-10 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) An option has been specified for p
6、roviding data on suitable welding conditions. d) An option for a minimum impact energy of 40 J has been specified. e) Annex ZA has been revised. f) The standard has been editorially revised. Previous editions DIN EN 10028-6: 1997-02, 2003-10 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 100
7、28-6 June 2009 ICS 77.140.30; 77.140.50 Supersedes EN 10028-6:2003 English Version Flat products made of steels for pressure purposes Part 6: Weldable fine grain steels, quenched and tempered Produits plats en acier pour appareils pression Partie 6: Aciers soudables grains fins, tremps et revenus Fl
8、acherzeugnisse aus Druckbehltersthlen Teil 6: Schweigeeignete Feinkornbausthle, vergtet 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 the conditions for giving this EuropeanStandard the status of a
9、 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 exists in three official versions (English, French, German). A versio
10、n in any other language made by translation under 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 bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denma
11、rk, 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. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATI
12、ON 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 10028-6:2009: EEN 10028-6:2009 (E) 2 Contents page Foreword 3 1 Scope 4 2 Normative referen
13、ces 4 3 Terms and definitions . 4 4 Dimensions and tolerances 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 Example for ordering . 5 8 Requireme
14、nts . 5 8.1 Steelmaking process . 5 8.2 Delivery condition 5 8.3 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 inspections and inspections documents 6 9.2 Tests to be carried out 6 9.3 Retests 6 10 Sampling . 6 11
15、 Test methods 7 12 Marking . 7 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC 12 Bibliography 13 DIN EN 10028-6:2009-09 EN 10028-6:2009 (E) 3 Foreword This document (EN 10028-6:2009) has been prepared by Technical Committee
16、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 2009, and conflicting national standards s
17、hall 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 rights. This document supersedes EN 10028-6:
18、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: Weldable fine grain steels, normalized Part
19、 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 information relating to agreements that
20、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 EU Directive 97/23/EC, see informative An
21、nex 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 Republic, Denmark, Estonia, Finland, France,
22、 Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 10028-6:2009-09 EN 10028-6:2009 (E) 4 1 Scope This European Standard specifies the r
23、equirements for flat products for pressure equipments made of quenched and tempered steels as specified in Table 1. The requirements in 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 confo
24、rmity 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 6 of the series) and does not presume adequacy of the material to a specific item of equipment. Consequently, the assessment of the techni
25、cal 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 indispensable for the application of this document
26、. 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 requirements EN 10204:2004, Metallic product
27、s Types of inspection 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 Dimensions and tolerances See EN 10028-1:2007 + A1:2009. 5 Calculation of mass See EN 10028-1:2007 + A1:2009. 6 Classification and designati
28、on 6.1 Classification 6.1.1 This document covers the steel grades given in Table 1 in four qualities: a) the basic series (P.Q); b) series with elevated temperature properties (P.QH); c) series with low temperature properties down to -40 C (P.QL1); d) series with low temperature properties down to -
29、60 C (P.QL2). 6.1.2 In accordance with EN 10020 all the steels specified in this document are alloy special steels. 6.2 Designation See EN 10028-1:2007 + A1:2009. DIN EN 10028-6:2009-09 EN 10028-6:2009 (E) 5 7 Information to be supplied by the purchaser 7.1 Mandatory information See EN 10028-1:2007
30、+ A1:2009. 7.2 Options A number of options is specified in this document 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 supplie
31、d in accordance with the basic specification (see also EN 10028-1:2007 + A1:2009). 1) providing data on suitable welding conditions (see 8.2.3); 2) mid thickness test pieces for the impact test (see Clause 10); 3) lower copper content and maximum tin content (see Table 1, footnote c); 4) mechanical
32、properties for thicknesses 150 mm (see Table 3, footnote b); 5) specification of a minimum impact energy of 40 J (see Note to 8.4 and Table 4, footnote a); 6) applicability of elevated temperature values for QL grades (see Table 5, footnote b). 7.3 Example for ordering 10 plates with nominal dimensi
33、ons, thickness = 50 mm, width = 2 000 mm, length = 10 000 mm, made of a steel grade with the name P355QL2 and the number 1.8869 as specified in EN 10028-6, inspection certificate 3.1 as specified in EN 10204: 10 plates 50 x 2 000 x 10 000 EN 10028-6 P355QL2 Inspection certificate 3.1 or 10 plates 50
34、 x 2 000 x 10 000 EN 10028-6 1.8869 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 quenched and tempered condition. 8.2.2 The steels specified in th
35、is European Standard shall be 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 thicknes
36、s and strength level cold cracking can occur. Cold cracking is caused by the follo-wing factors in combination: a) the amount of diffusible hydrogen in the weld metal; b) brittle structure of the heat affected zone; DIN EN 10028-6:2009-09 EN 10028-6:2009 (E) 6 c) tensile stress concentrations in the
37、 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 requirements, the
38、electrode efficiency, the welding process and the weld metal properties. NOTE 3 Excessive post weld heat-treatment (PWHT) conditions can decrease the mechanical properties. It is therefore recommended that the purchaser seeks, at the time of enquiry and order, the advise of the manufacturer and cons
39、iders, where appropriate, the verification of the mechanical properties on simulated post weld heat treated samples. 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 may deviate from the specified
40、 values of the cast analysis given in Table 1 by the values given in Table 2. 8.4 Mechanical properties The values given in Tables 3 to 5 apply (see also EN 10028-1:2007 + A1:2009 and Clause 10). NOTE Optionally, a minimum impact energy value of 40 J may be specified for temperatures where lower min
41、imum values are specified (see Table 4, 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 9.1 Types of inspections and inspections documents See EN 10028-
42、1:2007 + A1:2009. 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 + A1:2009, Table 3, footnote f, the preparation of test pieces taken from the mid thi
43、ckness may be agreed at the time of enquiry and order. In this case, test temperatures and minimum impact energy values shall also be agreed. DIN EN 10028-6:2009-09 EN 10028-6:2009 (E) 7 11 Test methods See EN 10028-1:2007 + A1:2009. 12 Marking See EN 10028-1:2007 + A1:2009. DIN EN 10028-6:2009-09 E
44、N 10028-6:2009 (E) 8 Table 1 Chemical composition (cast analysis)a,b Steel grade Maximum contents, % by mass Steel name Steel number C Si Mn P S N B Cr Mo CucNbdNi Tid VdZrdP355Q 1.8866 0,16 0,40 1,50 0,025 0,010 0,015 0,005 0,30 0,25 0,30 0,05 0,50 0,03 0,06 0,05 P355QH 1.8867 P355QL1 1.8868 0,020
45、0,008 P355QL2 1.8869 0,005 P460Q 1.8870 0,18 0,50 1,70 0,025 0,010 0,015 0,005 0,50 0,50 0,30 0,05 1,00 0,03 0,08 0,05 P460QH 1.8871 P460QL1 1.8872 0,020 0,008 P460QL2 1.8864 0,005 P500Q 1.8873 0,18 0,60 1,70 0,025 0,010 0,015 0,005 1,00 0,70 0,30 0,05 1,50 0,05 0,08 0,15 P500QH 1.8874 P500QL1 1.887
46、5 0,020 0,008 P500QL2 1.8865 0,005 P690Q 1.8879 0,20 0,80 1,70 0,025 0,010 0,015 0,005 1,50 0,70 0,30 0,06 2,50 0,05 0,12 0,15 P690QH 1.8880 P690QL1 1.8881 0,020 0,008 P690QL2 1.8888 0,005 a Elements not listed in this table shall not be intentionally added to the steel without the agreement of the
47、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 usability. bThe manufacturer may add one or several alloying element(
48、s) up to the maximum values specified in the order as a function of the product thickness and the steelmaking conditions in order to attain the specified properties. The chemical composition range for each manufacturers analysis shall be given in the offer and confirmation of order. cFor reasons of
49、hot formability, a lower copper content and a maximum tin content may be agreed at the time of enquiry and order. dThe percentage of grain refining elements shall be at least 0,015 %. Aluminium is also included in these elements. The minimum content of 0,015 % applies here to dissolved aluminium. This value is regarded as attained if the total aluminium content is at least 0,018 %; in cases of dispute, the dissolved aluminium content is to be determined. DI N EN 10028- 6 : 2009 - 0 9 EN 10028-6:2009 (E)
