SIST EN 10314:2016

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.WHPSHUDWXUDKVerfahren zur Ableitung von Mindestwerten der Dehngrenze von Stahl bei erhöhten TemperaturenMéthode de dérivation des valeurs minimales de la limite conventionnelle d'élasticité des aciers à températures élevéesMethod for the derivation of minimum values of proof strength of steel at elevated temperatures77.140.30Jekla za uporabo pod tlakomSteels for pressure purposesICS:Ta slovenski standard je istoveten z:EN 10314:2016SIST EN 10314:2016en,fr,de01-september-2016SIST EN 10314:2016SLOVENSKI
STANDARDSIST EN 10314:20031DGRPHãþD



SIST EN 10314:2016



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 10314
June
t r s x ICS
y yä s v rä u r Supersedes EN
s r u s vã t r r tEnglish Version
Method for the derivation of minimum values of proof strength of steel at elevated temperatures Méthode de dérivation des valeurs minimales de la limite conventionnelle d 5élasticité des aciers à températures élevées
Verfahren zur Ableitung von Mindestwerten der Dehngrenze von Stahl bei erhöhten Temperaturen This European Standard was approved by CEN on
s z March
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey andUnited Kingdomä
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Avenue Marnix 17,
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9
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s r u s vã t r s x ESIST EN 10314:2016



EN 10314:2016 (E) 2 Contents Page European foreword . 3 Introduction . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 5 4 Symbols and abbreviations . 5 5 Method . 6 5.1 Input data groups . 6 5.2 Ratio values . 6 5.3 Minimum proof strength values . 6 5.4 Minimum yield strength values . 7 6 Application of the method . 7 6.1 Representative data groups . 7 6.2 Number of data . 8 6.3 Consistency of data . 8 6.4 Result . 8 Annex A (informative)
Significant changes to the previous version EN 10314:2002 . 10 Bibliography. 11
SIST EN 10314:2016



EN 10314:2016 (E) 3 European foreword This document (EN 10314:2016) has been prepared by Technical Committee ECISS/TC 107 “Steels for pressure purposes”, 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 2016, and conflicting national standards shall be withdrawn at the latest by December 2016. 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 10314:2002. Regarding the most significant technical changes that have been made in this new edition of EN 10314, see Annex A. 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 10314:2016



EN 10314:2016 (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 design strength values particularly where the materials are used in pressure systems. Two International Standards, ISO 2605-1 and ISO 2605-2 (meanwhile withdrawn) were adopted by CEN as European Prestandards, ENV 22605-1 and ENV 22605-2. They set out procedures, based on statistical assessments of bodies 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 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 give an alternative to the requirement for elevated temperature tensile acceptance tests on individual products by organizations and manufacturers contributing data for assessment and as a result of this to reduce the test frequency. 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 from 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 conservative values from few data 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 is to produce an assessment procedure for tensile property data which is simple to operate, gives representative results and is usable in computerized form. This European Standard, which supersedes EN 10314:2002, which in turn superseded ENV 22605-1á
«2 and
«3, sets out a method for deriving minimum proof strength values for steels at elevated temperatures with the intention that such values are specified in relevant product standards. This European Standard does not specify a frequency of testing for the product standards where EN 10314 is applied. Verification of tensile properties at elevated temperatures is normally specified in the relevant product standard using the minimum property values derived by the procedure established in this European Standard. The method has been tested for proof strength values of steel. However, it is considered that the method can also be applied for the derivation of minimum values of tensile strength at elevated temperatures. SIST EN 10314:2016



EN 10314:2016 (E) 5 1 Scope This European Standard specifies a method for deriving the minimum proof strength values for steels at elevated temperatures. However, this E
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