1、Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/03/2008 06:56, Uncontrolled Copy, (c) BSIg49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58e
2、levated temperature propertiesThe European Standard EN 10273:2007 has the status of a British StandardICS 77.140.30; 77.140.60Hot rolled weldable steel bars for pressure purposes with specified BRITISH STANDARDBS EN 10273:2007BS EN 10273:2007Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/
3、03/2008 06:56, Uncontrolled Copy, (c) BSIThis British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2008 BSI 2008ISBN 978 0 580 58036 9Amendments issued since publicationDate CommentsThis publication does not purport to include all the necess
4、ary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard is the UK implementation of EN 10273:2007. It supersedes BS EN 10273:2000 which is withdrawn.The UK
5、participation in its preparation was entrusted by Technical Committee ISE/73, Steels for pressure purposes, to Subcommittee ISE/73/2, Steel plates and bars for pressure purposes. A list of organizations represented on this committee can be obtained on request to its secretary.EUROPEAN STANDARDNORME
6、EUROPENNEEUROPISCHE NORMEN 10273December 2007ICS 77.140.30; 77.140.60 Supersedes EN 10273:2000 English VersionHot rolled weldable steel bars for pressure purposes withspecified elevated temperature propertiesBarres lamines chaud en acier soudables pour appareils pression, avec des caractristiques sp
7、cifies auxtempratures levesWarmgewalzte schweigeeignete Stbe aus Stahl frDruckbehlter mit festgelegten Eigenschaften bei erhhtenTemperaturenThis European Standard was approved by CEN on 21 October 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the cond
8、itions 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 member.This European Standard exists in three
9、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 members are the national standards bodies of Austri
10、a, 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, Switzerland and United Kingdom.EUROPEAN COMMITTEE
11、 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 10273:2007: ELicensed Copy: Wang Bin, ISO/EXC
12、HANGE CHINA STANDARDS, 04/03/2008 06:56, Uncontrolled Copy, (c) BSIEN 10273:2007 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .5 4 Dimensions and tolerances on dimensions .5 5 Calculation of mass.5 6 Classification and designation.5 6.1 Classification5 6.2
13、 Designation 6 7 Information to be supplied by the purchaser .6 7.1 Mandatory information6 7.2 Options .6 7.3 Examples for ordering.7 8 Requirements.7 8.1 Steelmaking process.7 8.2 Delivery condition7 8.3 Chemical composition 8 8.4 Mechanical properties.8 8.5 Surface condition.8 8.6 Internal soundne
14、ss8 8.7 Weldability8 9 Inspection .9 9.1 Types of Inspection and Inspection documents 9 9.2 Tests to be carried out 9 9.3 Retests, sorting and reprocessing.9 10 Sampling.10 10.1 Frequency of testing .10 10.2 Selection and preparation of samples and test pieces10 11 Test methods10 11.1 Chemical analy
15、sis10 11.2 Tensile test at room temperature.11 11.3 Tensile test at elevated temperature .11 11.4 Impact test 11 11.5 Other testing.11 12 Marking .11 Annex A (informative) Guidelines for heat treatment 23 Annex B (informative) Reference data on creep strain and creep rupture.24 Annex ZA (informative
16、) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC 26 Bibliography 27 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/03/2008 06:56, Uncontrolled Copy, (c) BSIEN 10273:2007 (E) 3 Foreword This document (EN 10273:2007) has been prepared by
17、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 publication of an identical text or by endorsement, at the latest by June 2008, and conflicting nati
18、onal standards shall be withdrawn at the latest by June 2008. This document supersedes EN 10273:2000. This European Standard 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
19、. For relationship with EU Directive 97/23/EC, see informative Annex ZA, which is an integral part of this document. NOTE The clauses marked with a point () contain information relating to agreements which are to be made at the time of enquiry and order. The clauses marked by two points () contain i
20、nformation relating to agreements that may be made at the 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 Republic, D
21、enmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/
22、03/2008 06:56, Uncontrolled Copy, (c) BSIEN 10273:2007 (E) 4 1 Scope This European Standard specifies the technical delivery conditions for hot rolled weldable steel bars for the construction of pressure equipment for use at elevated temperatures. The general technical delivery conditions in EN 1002
23、1 also apply to products supplied in accordance with this European Standard. NOTE 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 lim
24、ited to technical data of materials in this European Standard 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 verif
25、y that the ESRs of the Pressure Equipment 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 undated references, the latest edi
26、tion of the referenced document (including any amendments) applies. EN 10002-1:2001, Metallic materials Tensile testing Part 1: Method of test at ambient temperature EN 10002-5:1991, Metallic materials Tensile testing Part 5: Method of testing at elevated temperatures EN 10020:2000, Definition and c
27、lassification of grades of steel EN 10021:2006, General technical delivery conditions for steel products EN 10045-1:1990, Metallic materials Charpy impact test Part 1: Test method EN 10052:1993, Vocabulary of heat treatment terms for ferrous products EN 10058, Hot rolled flat steel bars for general
28、purposes Dimensions and tolerances on shape and dimensions EN 10059, Hot rolled square steel bars for general purposes Dimensions and tolerances on shape and dimensions EN 10060, Hot rolled round steel bars for general purposes Dimensions and tolerances on shape and dimensions EN 10061, Hot rolled h
29、exagon steel bars for general purposes Dimensions and tolerances on shape and dimensions EN 10079:2007, Definition of steel products EN 10168:2004, Steel products Inspection documents List of information and description EN 10204:2004, Metallic products Types of inspection documents EN 10221, Surface
30、 quality classes for hot-rolled bars and rods Technical delivery conditions Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/03/2008 06:56, Uncontrolled Copy, (c) BSIEN 10273:2007 (E) 5 EN ISO 377, Steel and steel products Location and preparation of samples and test pieces for mechanical t
31、esting (ISO 377:1997) EN ISO 14284, Steel and iron Sampling and preparation of samples for the determination of chemical composition (ISO 14284:1996) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10020:2000, EN 10052:1993, EN 10079:2007 and the foll
32、owing apply. 3.1 normalizing rolling rolling process in which the final deformation process is carried out in a certain temperature range leading to a material condition equivalent to that obtained after normalizing so that the specified values of the mechanical properties are retained even after no
33、rmalizing NOTE The symbol for this delivery condition and for the normailised condition is N. deviating from EN 10052:1993 3.2 quenching and tempering as defined in EN 10052:1993 NOTE Quenching and tempering (symbol QT) also includes direct hardening plus tempering 3.3 purchaser person or organizati
34、on that orders products in accordance with this European Standard. The purchaser is not necessarily, but may be, a manufacturer of pressure equipment in accordance with the EU Directive listed in Annex ZA NOTE Where a purchaser has responsibilities under this EU Directive, this European Standard wil
35、l provide a presumption of conformity with the essential requirements of the Directive so identified in Annex ZA. 4 Dimensions and tolerances on dimensions The nominal dimensions and tolerances on dimensions shall be agreed at the time of enquiry and order with reference to the relevant dimensional
36、standard EN 10058, EN 10059, EN 10060 or EN 10061. 5 Calculation of mass A density of 7,85 kg/dm3shall be used as the basis for the calculation of the nominal mass from the nominal dimensions of all steel grades. 6 Classification and designation 6.1 Classification According to EN 10020 the steel gra
37、des P235GH, P250GH, P265GH, P295GH, P355GH, P275NH and P355NH are non-alloy quality steels. All other steel grades are alloy special steels. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/03/2008 06:56, Uncontrolled Copy, (c) BSIEN 10273:2007 (E) 6 6.2 Designation The steel grades are des
38、ignated with steel names in accordance with EN 10027-1. The corresponding steel numbers have been allocated in accordance with EN 10027-2. 7 Information to be supplied by the purchaser 7.1 Mandatory information The following information shall be supplied by the purchaser at the time of enquiry and o
39、rder: a) quantity required; b) shape of bars: c) European Standard specifying tolerances on dimensions, shape and mass (see Clause 4); d) nominal dimensions of the product; e) number of this European Standard, i.e. EN 10273; f) steel name or number; g) delivery condition (see 8.2); h) inspection doc
40、ument to be issued (see 9.1.1). 7.2 Options A number of options are specified in this European Standard and listed below. If the purchaser does not indicate his wish to implement any of these options the products shall be supplied in accordance with the basic specification (see 7.1). 1) specificatio
41、n of the steelmaking process (see 8.1); 2) deviating delivery condition (see 8.2.1 and 8.2.3); 3) specification of a higher minimum chromium content (see Table 1, footnote h); 4) specification of a lower maximum copper content and a maximum tin content (see Table 1, footnote i); 5) specification of
42、a maximum carbon equivalent value (see 8.3.3 and Table 3); 6) mechanical properties for diameters or thicknesses 150 mm (see Table 4, footnote b); 7) elevated temperature values for diameters or thicknesses 100 mm, steel grade P460NH (see Table 6, footnote e); 8) special surface condition (see 8.5);
43、 9) requirements for and verification of internal soundness (see 8.6); 10) delivery of data on suitable welding conditions (see 8.7.2); 11) product analysis (see Table 7, 10.1.1 and 11.1); 12) verification of proof strength Rp0,2at an agreed elevated temperature (see Table 7 and 11.3); Licensed Copy
44、: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 04/03/2008 06:56, Uncontrolled Copy, (c) BSIEN 10273:2007 (E) 7 13) verification of the impact energy at a temperature other than +20 C (see 11.4); 14) special marking requirements (see 12.2). 7.3 Examples for ordering EXAMPLE 1 5 t bars, dimensional toleran
45、ces as specified in EN 10059, 50 mm x 50 mm, supplied in fixed lengths of 10 000 mm, made of the steel grade 16Mo3 (steel number 1.5415) in accordance with EN 10273, with inspection document 3.1 as specified in EN 10204: 5 t bars EN 10059 505010000(F) steel EN 10273 16Mo3 inspection document 3.1 or
46、5 t bars EN 10059 505010000(F) steel EN 10273 1.5415 inspection document 3.1 EXAMPLE 2 2 t rounds, dimensional tolerances as specified in EN 10060, 75 mm diameter, supplied in exact lengths of 5 000 mm made of a steel grade 16Mo3 (steel number 1.5415) in accordance with EN 10273, surface quality cla
47、ss B in accordance with EN 10221; inspection document 3.1 as specified in EN 10204: 2 t rounds EN 10060 75x5000(E) steel EN 10273 16Mo3 EN 10221 class B inspection document 3.1 or 2 t rounds EN 10060 75x5000(E) steel EN 10273 1.5415 EN 10221 class B inspection document 3.1 8 Requirements 8.1 Steelma
48、king process Unless a special steelmaking process is agreed at the time of enquiry and order, the steelmaking process shall be at the discretion of the manufacturer. 8.2 Delivery condition 8.2.1 Unless otherwise agreed at the time of enquiry and order, the products covered by this European Standard
49、shall be supplied in the delivery condition given in Table 4. 8.2.2 Normalizing may be replaced by normalizing rolling for steel grades P235GH, P250GH, P265GH, P295GH, P355GH, P275NH, P355NH and P460NH. This means that the requirements have to be met even after subsequent normalizing. In the case of the grade P460NH delayed cooling or additional tempering may be necessary for small sections and in special cases. 8.2.3 Products made of steel grades P235GH, P250GH, P265GH, P2
