BS-EN-10314-2002.pdf
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1、BRITISH STANDARD BS EN 10314:2002 Method for the derivation of minimum values of proof strength of steel at elevated temperatures The European Standard EN 10314:2002 has the status of a British Standard ICS 77.140.30 ? BS EN 10314:2002 This British Standard, having been prepared under the direction
2、of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 27 November 2002 BSI 27 November 2002 ISBN 0 580 40824 8 National foreword This British Standard is the official English language version of EN 10314:2002. It
3、supersedes BS 3920-1:1973, BS 3920-2:1986, DD ENV 22605-1:1992, DD ENV 22605-2:1992 and DD ENV 22605-3:1992 which are withdrawn. The UK 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 pres
4、sure purposes, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Cat
5、alogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its c
6、orrect application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests
7、informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 10, an inside back cover and a back cover. The BSI copyright date displayed in this document i
8、ndicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10314 November 2002 ICS 77.140.30Supersedes ENV 22605-1:1991, ENV 22605-2:1991 and ENV 22605-3:1991 English version Method for the derivation of
9、minimum values of proof strength of steel at elevated temperatures Mthode de drivation des valeurs minimales de la limite conventionnelle dlasticit des aciers tempratures leves Verfahren zur Ableitung von Mindestwerten der Dehngrenze von Stahl bei erhhten Temperaturen This European Standard was appr
10、oved by CEN on 19 August 2002. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
11、 standards may be obtained on application to the 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 translation under the responsibility of a CEN member into its own language and notified
12、 to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland
13、and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2002 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 103
14、14:2002 E EN 10314:2002 (E) 2 Contents page Foreword3 Introduction . .4 1 Scope .5 2 Normative references .5 3 Terms and definitions 5 4 Symbols .6 5 Method. .6 5.1 Input data groups .6 5.2 Ratio values.6 5.3 Minimum proof strength values 7 6 Application of the method .8 6.1 Representative data grou
15、ps8 6.2 Number of data8 6.3 Consistency of data8 6.4 Result. .9 Bibliography. .10 EN 10314:2002 (E) 3 Foreword This document (EN 10314:2002) has been prepared by the ECISS/TC 22 “Steels for pressure purposes - Qualities“, the secretariat of which is held by DIN. This European Standard shall be given
16、 the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2003, and conflicting national standards shall be withdrawn at the latest by May 2003. This document supersedes ENV 22605-1:1991, ENV 22605-2:1991 and ENV 22605-3:1991. This standar
17、d includes a Bibliography. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembour
18、g, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. EN 10314:2002 (E) 4 Introduction Minimum values for tensile properties are specified in European Standards for steels and other metals for elevated temperature service. Such values are used to determine desig
19、n strength values particularly where the materials are used in pressure systems. Two International Standards, ISO 2605-1 and ISO 2605-2 are available and have been adopted by CEN as European Prestandards, ENV 22605-1 and ENV 22605-2. They set out procedures, based on statistical assessments of bodie
20、s of data, for the derivation and verification of minimum values of 0,2% proof strength at elevated temperatures. These procedures determine the minimum values from lower confidence lines. A third International Standard, ISO 2605-3, adopted by CEN as ENV 22605-3, sets out procedures for determining
21、minimum values from the average trend behaviour of the property of interest as a function of temperature. One of the purposes of the procedures in ISO 2605-1 and ISO 2605-2 (ENV 22605-1 and ENV 22605-2) is to reduce the requirement for elevated temperature tensile acceptance tests on individual prod
22、ucts by organizations and manufacturers contributing data for assessment. Experience has shown that the procedures in ISO 2605-1 and ISO 2605-2 (ENV 22605-1 and ENV 22605-2) have limitations affecting the relationship between derived minimum property values and the minima of the test data arising fr
23、om the statistical and some subjective decisions at various stages of the procedures. They also require relatively large amounts of data to produce an acceptable level of accuracy. The procedure set out in ISO 2605-3 (ENV 22605-3) requires less data but because it is designed to always give conserva
24、tive values from few data, it like the other procedures, can give non-representative results. However, the principle of this procedure is considered to be more realistic and is adopted as the basis of this European Standard; the objective being to produce an assessment procedure for tensile property
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