Cold rolled steel flat products with high yield strength for cold forming - Technical delivery conditions

This European Standard applies to cold rolled uncoated steel flat products for cold forming with high yield strength. The thickness is equal to or less than 3 mm.
These products are delivered in sheet, wide strip, slit wide strip, narrow strip or cut lengths obtained from slit wide strip, narrow strip or sheet.

Kaltgewalzte Flacherzeugnisse aus Stählen mit hoher Streckgrenze zum Kaltumformen - Technische Lieferbedingungen

Diese Europäische Norm gilt für kaltgewalzte Flacherzeugnisse ohne Überzug aus Stählen mit hoher Streckgrenze zum Kaltumformen. Die Dicke beträgt ≤ 3 mm.
Diese Erzeugnisse werden geliefert als Blech, Breitband, längsgeteiltes Breitband, durch Ablängen von Kaltband oder längsgeteiltem Breitband erzeugte Stäbe und Kaltband.

Produits plats laminés à froid à haute limite d'élasticité pour formage à froid - Conditions techniques de livraison

La présente Norme européenne s’applique aux produits plats en acier laminés à froid et non revêtus à haute limite d’élasticité pour formage à froid. Leur épaisseur est inférieure ou égale à 3 mm.
Ces produits sont livrés sous forme de tôles, larges bandes, larges bandes refendues, feuillards ou bandes coupées à longueur, obtenues à partir d’une large bande refendue, d’un feuillard ou d’une tôle.

Hladno valjani ploščati izdelki z veliko napetostjo tečenja za preoblikovanje v hladnem - Tehnični dobavni pogoji

Ta evropski standard velja za hladno valjane neprevlečene ploščate jeklene izdelke z veliko napetostjo tečenja. Debelina je enaka ali manjša od 3 mm. Ti izdelki so dobavljeni v ploščah, širokih trakovih, rezanih širokih trakovih, ozkih trakovih ali rezanih dolžinah iz rezanih širokih trakov, ozkih trakov ali plošč.

General Information

Status
Published
Publication Date
24-Sep-2013
Current Stage
9060 - Closure of 2 Year Review Enquiry - Review Enquiry
Due Date
02-Sep-2019
Completion Date
02-Sep-2019

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kaltgewalzte Flacherzeugnisse aus Stählen mit hoher Streckgrenze zum Kaltumformen - Technische LieferbedingungenProduits plats laminés à froid à haute limite d'élasticité pour formage à froid - Conditions techniques de livraisonCold rolled steel flat products with high yield strength for cold forming - Technical delivery conditions77.140.50SROL]GHONLFlat steel products and semi-productsICS:Ta slovenski standard je istoveten z:EN 10268:2006+A1:2013SIST EN 10268:2006+A1:2014en,fr,de01-junij-2014SIST EN 10268:2006+A1:2014SLOVENSKI

STANDARD
SIST EN 10268:2006+A1:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 10268:2006+A1
September 2013 ICS 77.140.50 Supersedes EN 10268:2006
English Version

Cold rolled steel flat products with high yield strength for cold forming - Technical delivery conditions

Produits plats laminés à froid à haute limite d'élasticité pour formage à froid - Conditions techniques de livraison

Kaltgewalzte Flacherzeugnisse aus Stählen mit hoher Streckgrenze zum Kaltumformen - Technische Lieferbedingungen This European Standard was approved by CEN on 12 June 2006 and includes Amendment 1 approved by CEN on 5 July 2013.

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 standards may be obtained on application to the CEN-CENELEC 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 to the CEN-CENELEC Management Centre has the same status as the official versions.

CEN members are the national standards bodies of 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 United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,

B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10268:2006+A1:2013: E SIST EN 10268:2006+A1:2014

EN 10268:2006+A1:2013 (E) 2 Contents Page Foreword ...................................................................................................................................................................... 3 1 Scope .............................................................................................................................................................. 4 2 Normative references .................................................................................................................................... 4 3 Terms and definitions ................................................................................................................................... 5 4 Designation .................................................................................................................................................... 5 5 Requirements ................................................................................................................................................. 6 5.1 Steelmaking and manufacturing processes ............................................................................................... 6 5.2 Chemical composition .................................................................................................................................. 6 5.3 Delivery conditions ........................................................................................................................................ 6 5.4 Mechanical properties ................................................................................................................................... 7 5.5 Surface characteristics ................................................................................................................................. 9 5.5.1 General ............................................................................................................................................................ 9 5.5.2 Surface quality ............................................................................................................................................... 9 5.5.3 Surface finish ................................................................................................................................................. 9 5.5.4 !Freedom from stretcher strains" ....................................................................................................... 10 5.6 Suitability for surface coating .................................................................................................................... 10 5.7 Weldability .................................................................................................................................................... 10 5.8 Tolerances on dimensions and shape ...................................................................................................... 10 6 Tests .............................................................................................................................................................. 10 6.1 General .......................................................................................................................................................... 10 6.2 Inspection units ........................................................................................................................................... 10 6.2.1 Products of rolled width ≥ 600 mm ............................................................................................................ 10 6.2.2 Products of rolled width < 600 mm ............................................................................................................ 10 6.3 Number of tests ............................................................................................................................................ 11 6.4 Sampling ....................................................................................................................................................... 11 6.5 Test methods ................................................................................................................................................ 11 6.6 Chemical analysis ........................................................................................................................................ 11 6.7 Retests .......................................................................................................................................................... 11 6.8 Inspection document ................................................................................................................................... 11 7 Marking ......................................................................................................................................................... 12 7.1 Products of rolled width ≥ 600 mm ............................................................................................................ 12 7.2 Products of rolled width < 600 mm ............................................................................................................ 12 8 Packing ......................................................................................................................................................... 12 9 Disputes ........................................................................................................................................................ 12 10 Information to be supplied by the purchaser at the time of enquiry and order .................................... 12 Bibliography .............................................................................................................................................................. 13

SIST EN 10268:2006+A1:2014

EN 10268:2006+A1:2013 (E) 3 Foreword This document (EN 10268:2006+A1:2013) has been prepared by Technical Committee ECISS/TC 109 “Coated and uncoated flat products to be used for cold forming”, the secretariat of which is held by AFNOR. 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 March 2014, and conflicting national standards shall be withdrawn at the latest by March 2014. !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 includes Amendment 1 approved by CEN on 5 July 2013. This document supersedes !EN 10268:2006". The start and finish of text introduced or altered by amendment is indicated in the text by tags !". According to the CEN/CENELEC Internal Regulations, the national standards organisations 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 10268:2006+A1:2014

EN 10268:2006+A1:2013 (E) 4 1 Scope This European Standard applies to cold rolled uncoated steel flat products for cold forming with high yield strength. The thickness is equal to or less than 3 mm. These products are delivered in sheet, wide strip, slit wide strip, narrow strip or cut lengths obtained from slit wide strip, narrow strip or sheet. 2 Normative references !The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies." !deleted text" EN 10020:2000, Definition and classification of grades of steel !EN 10021:2006, General technical delivery conditions for steel products" EN 10027-1, Designation systems for steels - Part 1: Steel names EN 10027-2, Designation systems for steels - Part 2: Numerical system !EN 10079:2007", Definition of steel products EN 10130, Cold rolled low carbon steel flat products for cold forming - Technical delivery conditions EN 10131, Cold rolled uncoated low carbon and high yield strength steel flat products for cold forming - Tolerances on dimensions and shape EN 10139, Cold rolled uncoated mild steel narrow strip for cold forming - Technical delivery conditions EN 10140, Cold rolled narrow steel strip - Tolerances on dimensions and shape EN 10204:2004, Metallic products - Types of inspection documents !EN 10325, Steel  Determination of yield strength increase by the effect of heat treatment [Bake-Hardening-Index]" EN ISO 377, Steel and steel products - Location and preparation of samples and test pieces for mechanical testing (ISO 377:1997) !EN ISO 6892-1:2009, Metallic materials  Tensile testing  Part 1: Method of test at room temperature (ISO 6892-1:2009)" EN ISO 14284, Steel and iron - Sampling and preparation of samples for the determination of chemical composition (ISO 14284:1996) ISO 10113, Metallic materials - Sheet and strip - Determination of plastic strain ratio ISO 10275, Metallic materials - Sheet and strip - Determination of tensile strain hardening exponent SIST EN 10268:2006+A1:2014

EN 10268:2006+A1:2013 (E) 5 3 Terms and definitions !For the purposes of this document, the terms and definitions given in EN 10020:2000, EN 10021:2006, EN 10079:2007 and EN 10204:2004 and the following apply." 3.1 bake-hardening steels (B) steels that demonstrate a defined increase in proof strength following heating in the region of 170 °C for 20 minutes !Note 1 to entry:" These steels have a good suitability for cold forming and present a high resistance to plastic straining which is increased on finished parts during the heat treatment. Dent resistance is improved. These steels are often used in car body outer parts. !deleted text" !3.2 low alloy / micro-alloyed steels (LA) steels containing one or more of alloys Nb, Ti and V to achieve required proof strength levels Note 1 to entry: Combined precipitation and grain refinement hardening modes allow reaching a high mechanical resistance while reducing the content of alloying elements. Suitability for welding is improved and cold forming is limited. These steels are used in reinforcing structural parts and have good impact and fatigue strengths. Note 2 to entry: Alternatively, carbon-manganese alloying concepts in combination with grain refinement can be used.

3.3 high strength interstitial free steels (Y) steels whose composition is controlled to achieve improved plastic strain ratio r and strain hardening exponent n values Note 1 to entry: These steels have both a high mechanical strength and an excellent suitability for cold forming due to their solid solution hardening and interstitial free microstructure. They are used for complex components involving deep drawing processes. 3.4 isotropic steels (I) steels with limited plastic strain ratio r value Note 1 to entry: These steels have excellent stretch formability due to their isotropic behaviour. They are used in the automotive industry for bonnets and doors." 4 Designatio

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