EN 10268:2006

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Cold rolled steel flat products with high yield strength for cold forming - Technical delivery conditionsProduits plats laminés a froid a haute limite d'élasticité pour formage a froid - Conditions techniques de livraisonKaltgewalzte Flacherzeugnisse aus Stählen mit hoher Streckgrenze zum Kaltumformen - Technische LieferbedingungenTa slovenski standard je istoveten z:EN 10268:2006SIST EN 10268:2006en77.140.50ICS:SIST EN 10268:20001DGRPHãþDSLOVENSKI
STANDARDSIST EN 10268:200601-november-2006

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 10268July 2006ICS 77.140.50Supersedes EN 10268:1998
English VersionCold rolled steel flat products with high yield strength for coldforming - Technical delivery conditionsProduits plats laminés à froid à haute limite d'élasticité pourformage à froid - Conditions techniques de livraisonKaltgewalzte Flacherzeugnisse aus Stählen mit hoherStreckgrenze zum Kaltumformen - TechnischeLieferbedingungenThis European Standard was approved by CEN on 12 June 2006.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 Central Secretariat 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 Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, 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© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10268:2006: E

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 5.6 Suitability for surface coating.9 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.10 6.4 Sampling.10 6.5 Test methods.11 6.6 Chemical analysis.11 6.7 Retests.11 6.8 Inspection document.11 7 Marking.11 7.1 Products of rolled width ≥≥≥≥ 600 mm.11 7.2 Products of rolled width < 600 mm.11 8 Packing.11 9 Disputes.11 10 Information to be supplied by the purchaser at the time of enquiry and order.12 Bibliography.13

NOTE These steels have excellent stretch formability due to their isotropic behaviour. They are used in the automotive industry for bonnets and doors. 4 Designation The steel names are in compliance with EN 10027-1; the steel numbers with EN 10027-2. The designation consists of the word "sheet", "cold rolled wide strip", "cold rolled narrow strip", "slit cold rolled wide strip " or "cut length" followed in order by:  reference to this European Standard EN 10268;  steel name or the steel number (see Table 1 or Table 2);  symbol concerning the surface quality (A or B);
 if applicable, the symbol relating to the surface finish.

Sheet EN 10268-HC260P-A-m or Sheet EN 10268-1.0417-A-m. EXAMPLE 2 Designation of coil made of steel grade HC220B (1.0396), surface quality B, surface finish normal (m):
Coil EN 10268-HC220B-B-m or Coil EN 10268-1.0396-B-m. 5 Requirements 5.1 Steelmaking
and manufacturing processes Unless otherwise agreed at the time of enquiry or order, the steelmaking and manufacturing processes are left to the discretion of the manufacturer. If specified by the purchaser, he or she will be informed of these processes. 5.2 Chemical composition The chemical composition based on the ladle analysis shall be as given in Table 1. 5.3 Delivery conditions 5.3.1 The products are supplied in the skin-passed condition only. 5.3.2 Usually the products are supplied oiled. In this case, both sides are corrosion protected by a layer of neutral non-drying oil, free of impurities and uniformly spread so that under the normal packing, transportation, loading and storage conditions, there will be no corrosion for up to three months. The layer of oils shall be capable of being removed by alkaline solutions or usual solvents. The choice of protective oils may be subject to a special agreement. If the purchaser does not require the surfaces
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