1、Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/03/2008 06:25, Uncontrolled Copy, (c) BSIg49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58P
2、art 7: Stainless steelsICS 77.140.20; 77.140.30; 77.140.50Flat products made of steels for pressure purposes BRITISH STANDARDBS EN 10028-7:2007BS EN 10028-7:2007Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/03/2008 06:25, Uncontrolled Copy, (c) BSIThis British Standard was published unde
3、r the authority of the Standards Policy and Strategy Committee on 31 January 2008 BSI 2008ISBN 978 0 580 55381 3Amendments/corrigenda issued since publicationDate Commentscontract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal
4、obligations.National forewordThis British Standard is the UK implementation of EN 10028-7:2007. It supersedes BS EN 10028-7:2000 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee ISE/30, Stainless steels.A list of organizations represented on this commit
5、tee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 10028-7December 2007ICS 77.140.30; 77.140.50 Supersedes EN 10028-7:2000 English VersionFlat products made of steels for pre
6、ssure purposes - Part 7:Stainless steelsProduits plats en aciers pour appareils pression - Partie7: Aciers inoxydablesFlacherzeugnisse aus Druckbehltersthlen - Teil 7:Nichtrostende SthleThis European Standard was approved by CEN on 21 October 2007.CEN members are bound to comply with the CEN/CENELEC
7、 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 nationalstandards may be obtained on application to the CEN Management Centre or to any CEN
8、member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder 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 membe
9、rs are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Swi
10、tzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN
11、 10028-7:2007: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/03/2008 06:25, Uncontrolled Copy, (c) BSIEN 10028-7:2007 (E) 2 Contents page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Dimensions and tolerances on dimensions .5 5 Calculation of mass.5 6 Classi
12、fication and designation.5 7 Information to be supplied by the purchaser .5 8 Requirements.5 9 Inspection .7 10 Sampling.7 11 Test methods7 12 Marking .7 Annex A (informative) Guidelines for further treatment (including heat treatment in fabrication).29 Annex B (informative) Post weld heat treatment
13、32 Annex C (informative) Preliminary reference data for the tensile strength of austenitic-ferritic steels at elevated temperatures .34 Annex D (informative) Reference data of strength values for 1 % (plastic) creep strain and creep rupture 35 Annex E (informative) Reference data on mechanical prope
14、rties of austenitic steels at room temperature and at low temperatures.44 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC 45 Bibliography 46 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/03/2008 06:25, Uncontrolle
15、d Copy, (c) BSIEN 10028-7:2007 (E) 3 Foreword This document (EN 10028-7:2007) 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 given the status of a national standard, either by p
16、ublication of an identical text or by endorsement, at the latest by June 2008, and conflicting national standards shall be withdrawn at the latest by June 2008. This document supersedes EN 10028-7:2000. This European Standard has been prepared under a mandate given to CEN by the European Commission
17、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. The steel grades covered by this European Standard have been selected from EN 1008
18、8-1. EN 10028 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 4: Nickel alloy
19、 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 may be made at t
20、he time of enquiry and order. 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 Repub-lic, Denmark, Estonia, Finland, France, Germany, Greece, Hun
21、gary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/03/2008 06:25, Uncontrolled Copy, (c) BSIEN 10028-7:2007 (
22、E) 4 1 Scope This European Standard specifies requirements for flat products for pressure purposes made of stainless steels, including austenitic creep resisting steels, in thicknesses as indicated in Tables 7 to 10. The requirements of EN 10028-1 also apply. NOTE 1 The steel grades covered by this
23、European Standard have been selected from EN 10088-1. NOTE 2 Once this European Standard is published in the Official Journal of the European Union (OJEU) under Directive 97/23/EC, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 97/23/EC is limited to technical dat
24、a of materials in this European Standard (Part 1 and Part 7) 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 requirements of this specific item of equipment to verify
25、 that the ESRs of the Pressure Equipment Directive 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 undated references, the latest edition of th
26、e referenced docu-ment (including any amendments) applies. EN 10028-1:2007, Flat products made of steels for pressure purposes Part 1: General requirements EN 10029, Hot rolled plates 3 mm thick or above Tolerances on dimensions, shape and mass EN 10088-1:2005, Stainless steels Part 1: List of stain
27、less steels EN ISO 643, Steels Micrographic determination of the apparent grain size (ISO 643:2003) EN ISO 3651-2, Determination of the resistance to intergranular corrosion of stainless steels Part 2: Ferritic, austenitic and ferritic-austenitic (duplex) stainless steels Corrosion test in media con
28、taining sulfuric acid (ISO 3651-2:1998) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10028-1:2007 and the following ap-ply. 3.1 cryogenic temperature temperature lower than 75 C used in the liquefaction of gases Licensed Copy: Wang Bin, ISO/EXCHANG
29、E CHINA STANDARDS, 04/03/2008 06:25, Uncontrolled Copy, (c) BSIEN 10028-7:2007 (E) 5 4 Dimensions and tolerances on dimensions Shall be according to EN 10028-1. 5 Calculation of mass For density values, shall be according to EN 10088-1:2005, Annex A. 6 Classification and designation Shall be accordi
30、ng to EN 10028-1. 7 Information to be supplied by the purchaser 7.1 Mandatory information Shall be according to EN 10028-1. 7.2 Options A number of options are specified in this document and listed below. Additionally, the relevant options of EN 10028-1 apply. If the purchaser does not indicate a wi
31、sh 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 EN 10028-1). a) mechanical properties for increased product thicknesses (see Table 7, footnote e); b) higher Rp0,2and Rp1,0values for continuously hot
32、 rolled products (see Table 9, footnote d and Table 10, footnote b). 7.3 Example for ordering 10 plates made of a steel grade with the name X5CrNi18-10 and the number 1.4301 as specified in EN 10028-7 with nominal dimensions, thickness = 8 mm, width = 2 000 mm, length = 5 000 mm; tolerances on dimen
33、sions, shape and mass as specified in EN 10029 with thickness tolerance class A and “normal“ flatness tolerance according to process route 1D (see Table 6), inspection document 3.1 as specified in EN 10204: 10 platesEN 100298Ax2000x5000steel EN 10028-7X5CrNi18-10+1Dinspection document 3.1 or 10 plat
34、es EN 100298Ax2000x5000steel EN 10028-71.4301+1Dinspection document 3.1 8 Requirements 8.1 Steelmaking process Shall be according to EN 10028-1. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/03/2008 06:25, Uncontrolled Copy, (c) BSIEN 10028-7:2007 (E) 6 8.2 Delivery condition The product
35、s shall be supplied in the delivery condition specified in the order by reference to the process route given in Table 6 and, where alternatives exist, to the treatment conditions given in Tables 7 to 10. Guidelines for further treatment including heat treatment are given in Annex A. 8.3 Chemical com
36、position and chemical corrosion properties 8.3.1 The chemical composition requirements given in Tables 1 to 4 shall apply in respect of the chemical composition according to the cast analysis. 8.3.2 The product analysis may deviate from the limiting values for the cast analysis given in Tables 1 to
37、4 by the values listed in Table 5. 8.3.3 The specifications in Tables 7, 9 and 10 shall apply in respect to resistance to intergranular corrosion as defined in EN ISO 3651-2, for ferritic, austenitic and austenitic-ferritic steels. NOTE 1 EN ISO 3651-2 is not applicable for testing martensitic steel
38、s. NOTE 2 The corrosion resistance of stainless steels is very dependent on the type of environment and can therefore not always be clearly ascertained through laboratory tests. It is therefore advisable to draw on the available experience of the use of the steels. 8.4 Mechanical properties 8.4.1 Th
39、e tensile properties at room temperature and the impact energy at room and at low temperatures as specified in Tables 7 to 10 apply for the relevant specified heat treatment condition. NOTE Austenitic stainless steels are insensitive to brittle fracture in the solution annealed condition. As they ha
40、ve a good resistance to shock loads, due to their high impact energy, also at very low (cryogenic) temperatures, they are useful for applications at such temperatures (see also the NOTE to Tables 9 and 10). 8.4.2 The values in Tables 11 to 14 apply for the 0,2 % and 1,0 % proof strength at elevated
41、temperatures. Additionally, the values in Table 15 apply for the tensile strength at elevated temperatures. Tensile strength values at elevated temperatures for austenitic-ferritic steels are given for guidance in Annex C. 8.4.3 Annex D gives mean values as preliminary data for the purchaser about s
42、trength for 1 % (plastic) creep strain and creep rupture. These data apply for the solution annealed condition only (see Table A.3). 8.4.4 In Annex E preliminary data on mechanical properties at low temperatures of austenitic steels are listed. 8.5 Surface condition Shall be according to EN 10028-1
43、and Table 6. 8.6 Internal soundness Shall be according to EN 10028-1. 8.7 Physical properties For reference data on physical properties, see Annex A of EN 10088-1:2005. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/03/2008 06:25, Uncontrolled Copy, (c) BSIEN 10028-7:2007 (E) 7 8.8 Post w
44、eld heat treatment Guidelines for the purchaser on post weld heat treatment are given in Annex B. 9 Inspection 9.1 Types of inspection and inspection documents Shall be according to EN 10028-1. 9.2 Tests to be carried out Shall be according to Table 16 and EN 10028-1. 9.3 Re-tests Shall be according
45、 to EN 10028-1. 10 Sampling 10.1 Frequency of testing Shall be according to Table 16 and EN 10028-1. 10.2 Selection and preparation of samples and test pieces Shall be according to EN 10028-1. 11 Test methods Shall be according to EN 10028-1. 12 Marking Shall be according to EN 10028-1. Licensed Cop
46、y: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/03/2008 06:25, Uncontrolled Copy, (c) BSIEN 10028-7:2007 (E) 8 Table 1 Chemical composition (cast analysis) aof ferritic steels Steel grade % by mass Steel name Steel number C max. Si max. Mn max. P max. S max. N max. Cr Mo Nb Ni Ti X2CrNi12 1.4003 0,030
47、 1,00 1,50 0,040 0,015 0,030 10,5 to 12,5 0,30 to 1,00 X6CrNiTi12 1.4516 0,08 0,70 1,50 0,040 0,015 10,5 to 12,5 0,50 to 1,50 0,05 to 0,35 X2CrTi17 1.4520 0,025 0,50 0,50 0,040 0,015 0,015 16,0 to 18,0 0,30 to 0,60 X3CrTi17 1.4510 0,05 1,00 1,00 0,040 0,015 16,0 to 18,0 4 x(C+N) + 0,15 to 0,80 bX2Cr
48、MoTi17-1 1.4513 0,025 1,00 1,00 0,040 0,015 0,020 16,0 to 18,0 0,80 to 1,40 0,30 to 0,60 X2CrMoTi18-2 1.4521 0,025 1,00 1,00 0,040 0,015 0,030 17,0 to 20,0 1,80 to 2,50 4 x(C+N) + 0,15 to 0,80 bX6CrMoNb17-1 1.4526 0,08 1,00 1,00 0,040 0,015 0,040 16,0 to 18,0 0,80 to 1,40 7x(C+N) + 0,10 to 1,00 X2Cr
49、TiNb18 1.4509 0,030 1,00 1,00 0,040 0,015 17,5 to 18,5 (3xC )+ 0,30 to 1,00 0,10 to 0,60 a Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing of the cast. All appropriate precautions are to be taken to avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel.bThe stabilisation may be made by use
