1、September 2009DEUTSCHE NORM English price group 11No 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_l“1546073www.din.deDDIN EN 10028-3Flat products made of steels for pressure purposes Part 3: Weldable fine grain steels, normalizedEnglish version of DIN EN 10028-3:2009-09Flacherzeugnisse aus Druckbehltersthlen Teil 3: Schweigeeignete Feinkornbausthle, normalgeglhtEnglische Fassung DIN EN 10028
3、-3:2009-09SupersedesDIN EN 10028-3:2003-09www.beuth.deDocument comprises pages18DIN EN 10028-3:2009-09 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 in it
4、s 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 standard
5、 differs from DIN EN 10028-3:2003-09 as follows: a) Information regarding the harmonization with Directive 97/23/EC has been rendered more precise. b) The chemical composition of the non-alloy steels has been modified (lower maximum values for the sulfur content). c) An option for modified values fo
6、r ReHand Rmfor grades P460NH and P460NL1 has been specified. 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 17102: 1983-10 DIN EN 10028-3: 1993-04, 2003-09 2 EUROPEAN STANDARD NORM
7、E EUROPENNE EUROPISCHE NORM EN 10028-3 June 2009 ICS 77.140.30; 77.140.50 Supersedes EN 10028-3:2003 English Version Flat products made of steels for pressure purposes Part 3: Weldable fine grain steels, normalized Produits plats en aciers pour appareils pression Partie 3: Aciers soudables grains fi
8、ns, normaliss Flacherzeugnisse aus Druckbehltersthlen Teil 3: Schweigeeignete Feinkornbausthle, normalgeglht 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 EuropeanSta
9、ndard the status of a national standard without any alteration. Up-to-date lists 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, Frenc
10、h, German). A version 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, C
11、zech 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. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUR
12、OPEN 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 10028-3:2009: EEN 10028-3:2009 (E) 2 Contents Page Foreword 3 1 Scope 4
13、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 5 7 Information to be supplied by the purchaser . 5 7.1 Mandatory information 5 7.2 Options . 5 7.3 E
14、xample 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 . 9 8.5 Surface condition. 9 8.6 Internal soundness 9 8.7 Resistance to hydrogen induced cracking . 10 9 Inspection . 10 9.1 Types of inspection and in
15、spection documents 10 9.2 Tests to be carried out 10 9.3 Retests 10 10 Sampling . 10 11 Test methods 10 12 Marking . 10 Annex A (normative) Evaluation of resistance to hydrogen induced cracking 14 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU
16、 Directive 97/23/EC . 15 Bibliography 16 DIN EN 10028-3:2009-09 EN 10028-3:2009 (E) 3 Foreword This document (EN 10028-3:2009) has been prepared by Technical Committee ECISS/TC 22 “Steels for pressure purposes - Qualities”, the secretariat of which is held by DIN. This European Standard shall be giv
17、en 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 elements of this document m
18、ay 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 10028-3:2003. This European Standard consists of the following parts, under the general title Flat products made of steels for pressure purp
19、oses: 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, thermomechanically rolled Part
20、 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 the European Commissio
21、n 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 national standards organi
22、zations 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, Poland, Portugal, Rom
23、ania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 10028-3:2009-09 EN 10028-3:2009 (E) 4 1 Scope This European Standard specifies requirements for flat products for pressure equipment made of weldable fine grain steels as specified in Table 1. NOTE 1 Fine grain steel
24、s are understood as steels with a ferritic grain size of 6 or finer when tested in accordance with EN ISO 643. The requirements and definitions 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, presump
25、tion 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 3 of the series) and does not presume adequacy of the material to a specific item of equipment. Consequently, the assessment
26、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 indispensable for the application of
27、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 requirements EN 10204:2004, Met
28、allic 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 Dimensions and tolerances on dime
29、nsions 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 The steel grades covered by this document are given in four qualities: a) room temperature quality (P . N), b) elevated temperature quality (P.NH), c)
30、low temperature quality (P.NL1) and d) special low temperature quality (P.NL2). DIN EN 10028-3:2009-09 EN 10028-3:2009 (E) 5 6.1.2 The grades P275NH, P275NL1, P355N, P355NH and P355NL1 are non-alloy quality steels, the grades P275NL2 and P355NL2 are non-alloy special steels and the grades P460NH, P4
31、60NL1 and P460NL2 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
32、 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) tests in the simulated normali
33、zed condition (see 8.2.2); 2) delivery of products in the untreated condition (see 8.2.3); 3) maximum carbon equivalent value (see 8.3.3); 4) tensile properties for increased product thicknesses (see Table 4, footnote c); 5) modified values for ReHand Rm for grades P460NH and P460NL1 (see Table 4, f
34、ootnote d) 6) application of the Rp0,2values of Table 5 for the corresponding P.NL1 and PNL2 grade (see 8.4.2); 7) Rp0,2values at elevated temperatures for increased product thicknesses (see Table 5, footnote b); 8) specification of a minimum impact energy of 40 J (see NOTE to 8.4.1 and Table 6); 9)
35、 HIC test in accordance with EN 10229 (see 8.7); 10) mid thickness test pieces for the impact test (see Clause 10); 11) verification of impact energy for longitudinal test pieces (see clause 11); 12) use of test solution B for the HIC test with agreed acceptance criteria (see Annex A). 7.3 Example f
36、or ordering 10 plates with nominal dimensions, thickness = 50 mm, width = 2000 mm, length = 10 000 mm, made of a steel grade with the name P275NL2 and the number 1.1104 as specified in EN 10028-3, to be delivered with inspection certificate 3.1 as specified in EN 10204: 10 plates 50 x 2000 x 10000 E
37、N 10028-3 P275NL2 - Inspection certificate 3.1. or 10 plates 50 x 2000 x 10000 EN 10028-3 1.1104 Inspection certificate 3.1. DIN EN 10028-3:2009-09 EN 10028-3:2009 (E) 6 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
38、time of enquiry and order (see 8.2.3), the products covered by this document shall be supplied in the normalized condition. For steels with a minimum yield strength 460 MPa, delayed cooling or additional tempering may be necessary for small product thicknesses and in special cases. If such a treatme
39、nt is performed, this shall be noted in the inspection document. 8.2.2 Normalizing may, at the discretion of the manufacturer, be replaced with normalizing rolling for the steel grades P275NH, P275NL1, P275NL2, P355N, P355NH, P355NL1 and P355NL2 (see 3.1 in EN 10028-1:2007 + A1:2009). In this case,
40、additional tests on simulated normalized samples with an agreed 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 covered by this document may also be delivered
41、in the untreated condition. In these cases, testing shall be carried out in the simulated normalized condition (but see 8.2.1). NOTE Testing in a simulated heat treated condition does not discharge the processor from the obligation of providing proof of the specified properties in the finished produ
42、ct. 8.2.4 Information on welding is given in EN 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) x 10-3, where Tsis the stress relieving temperatu
43、re in K and t is the holding time in hours, exceeds the critical value Pcrit. of 17,3 for all steel grades except P460NH, P460NL1 and P460NL2 16,7 in the case of steel grade P460NH and 16,3 in the case of steel grades P460NL1 and P460NL2, the purchaser should in his enquiry and order inform the manu
44、facturer accordingly and, where appropriate, tests on simulated heat treated samples may be agreed to check whether after such 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 shall apply for the
45、 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 Table 2. 8.3.3 A maximum value for the carbon equivalent in accordance with Table 3 may be agree
46、d upon at the time of enquiry and order. DIN EN 10028-3:2009-09 EN 10028-3:2009 (E) 7 Table 1 Chemical composition (cast analysis) aSteel grade % by mass Steel name Steel numberC max. Si max. Mn P max. S max. Altotal min. N max. Cr max. Cu max. Mo max. Nb max. Ni max. Ti max. V max. Nb + Ti + V max.
47、 P275NH 1.0487 0,16 0,40 0,80 bto 1,50 0,025 0,010 0,020 c,d0,012 0,30e0,30 e0,08 e0,05 0,50 0,03 0,05 0,05 P275NL1 1.0488 0,008 P275NL2 1.1104 0,020 0,005 P355N 1.0562 0,18 0,50 1,10 to 1,70 0,025 0,010 0,020 c,d0,012 0,30e0,30 e0,08 e0,05 0,50 0,03 0,10 0,12 P355NH 1.0565 P355NL1 1.0566 0,008 P355
48、NL2 1.1106 0,020 0,005 P460NH 1.8935 0,20 0,60 1,10 to 1,70 0,025 0,010 0,020c,d0,025 0,30 0,70 f0,10 0,05 0,80 0,03 0,20 0,22 P460NL1 1.8915 0,008 P460NL2 1.8918 0,020 0,005 a Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser exce
49、pt for finishing the cast. All appropriate measures shall be taken to prevent the addition from scrap or other materials used in steelmaking of these elements which may adversely affect the mechanical properties and usability. bFor product thicknesses 1,00 to 1,70 0,10 P 0,025 +0,005 S 0,010 +0,003 Al 0,020 0,005 N 0,025 +0,002 Cr 0,30 +0,05 Mo 0,10 +0,03 Cu 0,30 +0,05 0,30 to 0,70 +0,10 Nb 0,05 +0,01 Ni 0,80 +0,05 Ti 0,03 +0,01 V 0,20 +0,01 aIf several pro
