EN 10343:2009
(Main)Steels for quenching and tempering for construction purposes - Technical delivery conditions
Steels for quenching and tempering for construction purposes - Technical delivery conditions
This document specifies the technical delivery requirements for the following steel products intended for use in the construction industry:
bars (including hammer-forged bars);
wide flats;
hot-rolled strip and sheet/plate;
forgings.
They are manufactured from the direct hardening non alloy steels for quenching and tempering and the direct hardening alloy steels for quenching and tempering and supplied in one of the heat treatment conditions given for the different types of products in Table 1.
These steels are generally intended for the manufacture of quenched and tempered parts, but can also be used in the normalized condition.
The requirements for mechanical properties are restricted to part sizes given in Tables 4 and 5.
NOTE 1 In accordance with EN 10020, the steels covered by this standard are quality and special steels. The differences between quality and special steels are characterized by the following requirements, which are valid for special steels only:
the minimum impact values in the quenched and tempered condition (for non alloy special steels in the case of mean percentages by mass of carbon < 0,50 % only);
limited oxide inclusion content;
lower maximum contents for phosphorus and sulphur.
NOTE 2 This standard does not apply for bright steel products.
NOTE 3 This standard only applies for the manufacture of products without any further cold or hot forming and no additional heat treatment, i.e. the properties are according to the delivery condition (+N, +QT).
In addition to the specifications of this European Standard, the general technical delivery conditions given in EN 10021 will be applicable unless otherwise specified.
Vergütungsstähle für das Bauwesen - Technische Lieferbedingungen
Dieses Dokument legt die allgemeinen technischen Lieferbedingungen für folgende Stahlerzeugnisse zur
Verwendung im Bauwesen fest:
- Stabstahl (einschließlich freiformgeschmiedetem Stabstahl);
- Breitflachstahl;
- warmgewalztes Blech und Band;
- Schmiedestücke.
Sie werden hergestellt aus unlegierten Vergütungsstählen und legierten Vergütungsstählen, welche in einem
der für die verschiedenen Erzeugnisformen in den entsprechend Tabelle 1 angegebenen Wärmebehandlungszuständen
geliefert werden.
Die Stähle sind im Allgemeinen zur Herstellung vergüteter Bauteile vorgesehen, die aber auch im
normalisierten Zustand verwendet werden.
Die Anforderungen an die angegebenen mechanischen Eigenschaften beschränken sich auf die in den
Tabellen 4 und 5 angegebenen Maße.
ANMERKUNG 1 Entsprechend EN 10020 handelt es sich bei den in dieser Norm enthaltenen Stählen um Qualitäts- und
Edelstähle. Die Edelstähle unterscheiden sich von den Qualitätsstählen durch:
- Mindestwerte der Kerbschlagarbeit im vergüteten Zustand (bei unlegierten Edelstählen nur bei mittleren
Masseanteilen an Kohlenstoff von < 0,50 %);
- begrenzter Gehalt an oxidischen Einschlüssen;
- niedrigere Höchstgehalte für Phosphor und Schwefel.
ANMERKUNG 2 Diese Norm gilt nicht für Blankstahlprodukte.
ANMERKUNG 3 Diese Norm ist nur auf Erzeugnisse anzuwenden, die nicht weiter kalt oder warm umgeformt werden
und keine zusätzliche Wärmebehandlung erfahren, d. h. deren Eigenschaften dem Lieferzustand +N oder +QT
entsprechen.
Zusätzlich zu den Anforderungen dieser Europäischen Norm gelten die allgemeinen technischen
Lieferbedingungen nach EN 10021, falls nichts anderes vereinbart wurde.
Aciers pour trempe et revenu pour usage de construction - Conditions techniques de livraison
La présente norme européenne spécifie les conditions techniques de livraison :
- des barres (incluant les barres forgées par martelage) ;
- des larges plats ;
- des bandes et tôles laminées à chaud ;
- des produits forgés.
Ils sont fabriqués en aciers non alliés ou alliés pour trempe et revenu, fournis dans l’un des états de traitement
thermique indiqués pour les différents types de produits au Tableau 1.
Ces aciers sont généralement destinés à la fabrication de pièces trempées et revenues mais peuvent
également être utilisés à l’état normalisé.
Les propriétés mécaniques exigées dans la présente norme européenne sont limitées aux dimensions
indiquées aux Tableaux 4 et 5.
NOTE 1 Conformément à l’EN 10020, la présente norme concerne les aciers de qualité et les aciers spéciaux. Les
aciers spéciaux se distinguent des aciers de qualité par :
- des valeurs minimales d’énergie de rupture à l’état trempé et revenu (uniquement pour les teneurs moyennes en
masse de carbone < 0,50 % pour les aciers spéciaux non alliés) ;
- une teneur limitée en inclusions d’oxyde ;
- des teneurs maximales plus faibles en phosphore et en soufre.
NOTE 2 La présente norme ne s’applique ni aux produits en acier transformés à froid.
NOTE 3 La présente norme s'applique uniquement à la fabrication de produits sans aucun autre formage à froid ou à
chaud ni aucun traitement supplémentaire, c’est-à-dire qu’elle définit les propriétés en fonction de la condition de livraison
(+N, +QT).
En plus des spécifications de la présente norme européenne, les conditions techniques générales de livraison
stipulées dans l’EN 10021 sont applicables, sauf indication contraire.
Konstrukcijska jekla za poboljšanje - Tehnični dobavni pogoji
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Vergütungsstähle für das Bauwesen - Technische LieferbedingungenAciers pour trempe et revenu pour usage de construction - Conditions techniques de livraisonSteels for quenching and tempering for construction purposes - Technical delivery conditions77.140.10Jekla za toplotno obdelavoHeat-treatable steelsICS:Ta slovenski standard je istoveten z:EN 10343:2009SIST EN 10343:2009en,fr,de01-junij-2009SIST EN 10343:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 10343March 2009ICS 77.140.10 English VersionSteels for quenching and tempering for construction purposes -Technical delivery conditionsAciers pour trempe et revenu pour usage de construction -Conditions techniques de livraisonVergütungsstähle für das Bauwesen - TechnischeLieferbedingungenThis European Standard was approved by CEN on 14 February 2009.CEN members are bound to comply with the CEN/CENELEC 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 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 members 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, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10343:2009: ESIST EN 10343:2009
Ruling sections for the mechanical properties . 26 A.1 Terms and Definitions . 26 A.2 Determination of the diameter of the equivalent ruling section . 26 Annex B (normative)
Dimensional standards applicable to products complying with this European Standard . 28 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 89/106/EEC, EU Construction Products Directive . 29 ZA.1 Scope and relevant characteristics . 29 ZA.2 Procedures for the attestation of conformity of structural metallic construction products . 30 ZA.3 CE marking and labelling . 32
They are manufactured from the direct hardening non alloy steels for quenching and tempering and the direct hardening alloy steels for quenching and tempering and supplied in one of the heat treatment conditions given for the different types of products in Table 1. These steels are generally intended for the manufacture of quenched and tempered parts, but can also be used in the normalized condition. The requirements for mechanical properties are restricted to part sizes given in Tables 4 and 5. NOTE 1 In accordance with EN 10020, the steels covered by this standard are quality and special steels. The differences between quality and special steels are characterized by the following requirements, which are valid for special steels only: the minimum impact values in the quenched and tempered condition (for non alloy special steels in the case of mean percentages by mass of carbon < 0,50 % only); limited oxide inclusion content; lower maximum contents for phosphorus and sulphur. NOTE 2 This standard does not apply for bright steel products.
NOTE 3 This standard only applies for the manufacture of products without any further cold or hot forming and no additional heat treatment, i.e. the properties are according to the delivery condition (+N, +QT). In addition to the specifications of this European Standard, the general technical delivery conditions given in EN 10021 will be applicable unless otherwise specified. 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 the referenced document (including any amendments) applies. EN 10002-1, Metallic materials - Tensile testing - Part 1: Method of test at ambient temperature
EN 10020:2000, Definition and classification of grades of steel EN 10021, General technical delivery conditions for steel products EN 10027-1, Designation systems for steel - Part 1: Steel names EN 10027-2, Designation systems for steel - Part 2: Numerical system SIST EN 10343:2009
EN ISO 14284:2002. 3.1 steels for quenching and tempering engineering steels which because of their chemical composition are suitable for hardening and in the quenched and tempered condition have good toughness at a given tensile strength 3.2 ruling section section for which the specified mechanical properties apply (see Annex A) NOTE Independent of the actual shape and dimensions of the cross-section of the product the size of its ruling section is always given by a diameter. This corresponds to the diameter of an "equivalent round bar". That is, a round bar which, at the position of its cross-section specified for taking the test pieces for the mechanical tests, will, when being SIST EN 10343:2009
1) any particular surface condition (see 6.3.2) 2) any verification of the product analysis (see 7.1.2.2) 3) any fine grain requirements or verification of fine grain size (see 7.3.1); 4) any requirements for the verification of non-metallic inclusion content of special steels (see 7.3.2); 5) any requirement for internal soundness (see 7.4); 6) any requirement relating to surface quality (see 7.5.3); 7) any requirement regarding the permissible depth of decarburization for special steels (see 7.5.4); SIST EN 10343:2009
20 round bars EN 10060 - 20x8000 prEN 10343 – 25CrMo4+QT,
EN 10204 – 3.1, CE or 20 round bars EN 10060 - 20x8000 prEN 10343 – 1.7218+QT,
...
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