SIST EN 10277-5:2008
(Main)Bright steel products - Technical delivery conditions - Part 5: Steels for quenching and tempering
Bright steel products - Technical delivery conditions - Part 5: Steels for quenching and tempering
This part of EN 10277 applies to bright steel bars in the drawn, turned or ground condition, in straight lengths of steels for quenching and tempering. This EN 10277-5 is complemented by EN 10277-1.
Blankstahlerzeugnisse - Technische Lieferbedingungen - Teil 5: Vergütungsstähle
Dieser Teil der EN 10277 gilt für gerichteten und abgelängten Blankstahl im gezogenen, geschälten oder
geschliffenen Zustand aus Vergütungsstählen.
Diese EN 10277-5 wird vervollständigt durch EN 10277-1.
Produits en acier transformés à froid - Conditions techniques de livraison - Partie 5: Aciers pour trempe et revenu
La présente partie de l’EN 10277 s'applique aux barres en acier pour trempe et revenu, transformées à froid, à l'état étiré, écroûté galeté ou rectifié, en longueurs droites.
La présente norme EN 10277-5 est complétée par l’EN 10277-1.
Svetli jekleni izdelki - Tehnični dobavni pogoji - 5. del: Jekla za poboljšanje
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Blankstahlerzeugnisse - Technische Lieferbedingungen - Teil 5: VergütungsstähleProduits en acier transformés à froid - Conditions techniques de livraison - Partie 5: Aciers pour trempe et revenuBright steel products - Technical delivery conditions - Part 5: Steels for quenching and tempering77.140.01Železni in jekleni izdelki na splošnoIron and steel products in generalICS:Ta slovenski standard je istoveten z:EN 10277-5:2008SIST EN 10277-5:2008en,fr,de01-maj-2008SIST EN 10277-5:2008SLOVENSKI
STANDARDSIST EN 10277-5:20001DGRPHãþD
SIST EN 10277-5:2008
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 10277-5March 2008ICS 77.140.20; 77.140.60Supersedes EN 10277-5:1999
English VersionBright steel products - Technical delivery conditions - Part 5:Steels for quenching and temperingProduits en acier transformés à froid - Conditionstechniques de livraison - Partie 5: Aciers pour trempe etrevenuBlankstahlerzeugnisse - Technische Lieferbedingungen -Teil 5: VergütungsstähleThis European Standard was approved by CEN on 4 February 2008.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: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10277-5:2008: ESIST EN 10277-5:2008
EN 10277-5:2008 (E) 2 Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Terms and definitions.4 4 Classification and designation.4 4.1 Classification.4 4.2 Designation.4 5 Information to be supplied by the purchaser.4 6 Manufacturing process.4 7 Requirements.5 7.1 Chemical composition.5 7.2 Mechanical properties.5 7.3 Hardenability.5 7.4 Grain size.5 7.5 Non-metallic inclusions.5 7.5.1 Microscopic inclusions.5 7.5.2 Macroscopic inclusions.5 7.6 Options.5 8 Inspection and testing.5 8.1 Types and contents of inspection documents.5 8.2 Specific inspection.6 8.3 Verification of hardenability.6 9 Marking.6
SIST EN 10277-5:2008
EN 10277-5:2008 (E) 3 Foreword This document (EN 10277-5:2008) has been prepared by Technical Committee ECISS/TC 23 “Steels for heat treatment, alloy steels and free-cutting steels - Qualities and dimensions”, 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 September 2008, and conflicting national standards shall be withdrawn at the latest by September 2008. 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 10277-5:1999. 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, 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 the United Kingdom. This European Standard EN 10277 'Bright steel products - Technical delivery conditions' is subdivided as follows: Part 1: General; Part 2: Steels for general engineering purposes; Part 3: Free-cutting steels; Part 4: Case hardening steels; Part 5: Steels for quenching and tempering. During the preparation of the first edition of this European Standard there were not enough statistical data available concerning mechanical properties of bright bar products. Since then it has been recognized that the proof strength values in the cold drawn condition were too high. In addition, cyclic stresses that occur during straightening can reduce the proof strength (Bauschinger's effect), which was not taken into account when drafting the first edition of this standard. In this second edition the proof strength values of non-alloy and alloy grades in condition +QT+C in parts 3 and 5 have been adjusted downwards compared to the first edition. Furthermore for this part the tensile strength values of different grades were amended in the condition +QT+C in the tables for the mechanical properties for non alloy and alloy steels. SIST EN 10277-5:2008
EN 10277-5:2008 (E) 4 1 Scope This part of EN 10277 applies to bright steel bars in the drawn, turned or ground condition, in straight lengths of steels for quenching and tempering. This EN 10277-5 is complemented by EN 10277-1.
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 10083-2, Steels for quenching and tempering - Part 2: Technical delivery conditions for non alloy steels EN 10083-3, Steels for quenching and tempering - Part 3: Technical delivery conditions for alloy steels EN 10277-1, Bright steel products - Technical delivery conditions - Part 1: General 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 10277-1 and the following apply. 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. 4 Classification and designation
4.1 Classification Steel grades C35E, C35R, C40E, C40R, C45E, C45R, C50E, C50R, C60E and C60R are non-alloy special steels. All other steel grades covered by this European Standard are alloy special steels. 4.2 Designation See EN 10277-1. 5 Information to be supplied by the purchaser See EN 10277-1. 6 Manufacturing process See EN 10277-1. SIST EN 10277-5:2008
EN 10277-5:2008 (E) 5 7 Requirements 7.1 Chemical composition 7.1.1 Cast analysis The chemical composition of the steel according to the cast analysis shall be as specified in Table 1. 7.1.2 Product analysis The permissible deviations from the chemical composition as specified in Table 1 for cast analysis and the product analysis of the steel shall be as specified in Table 2. 7.2 Mechanical properties
The mechanical properties of the steels shall be as specified in Table 3, Table 4 and Table 5.
7.3 Hardenability Where steels are ordered with hardenability requirements, the requirements of EN 10083-2 shall apply for non alloyed steels and EN 10083-3 shall apply for alloyed steels.
7.4 Grain size Unless otherwise agreed at the time of ordering the grain size of non-alloy steels shall be left to the discretion of the manufacturer. If a fine grain structure is required in accordance with a reference treatment, option B.2 of EN 10277-1 shall be ordered. All alloy steels shall show an austenitic grain size of 5 or finer. Only for verification see B.2 of EN 10277-1. 7.5 Non-metallic inclusions 7.5.1 Microscopic inclusions The steels shall have a cleanness corresponding to special steel quality. For details of the requirements for the verification of non-alloy steels see EN 10083-2, A.4 for and of alloy steels see EN 10083-3, A.3. 7.5.2 Macroscopic inclusi
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