Hot rolled and cold rolled non-coated products of multiphase steels for cold forming - Technical delivery conditions

This European Standard applies to hot rolled and cold rolled non-coated steel flat products made of multiphase steels for cold forming. It covers cold rolled products of thickness equal to or less than 3 mm and hot rolled products of thickness equal to or less than 6 mm.
These products are delivered in sheet, wide strip, slit wide strip or cut lengths obtained from slit wide strip.
Flat products of multiphase steels for cold forming may be delivered with an electrolytically zinc coating according to EN 10152.

Warmgewalzte und kaltgewalzte Flacherzeugnisse ohne Überzug aus Mehrphasenstählen zum Kaltumformen - Technische Lieferbedingungen

Diese Europäische Norm gilt für warm- und kaltgewalzte Flacherzeugnisse ohne Überzug aus Mehrphasenstählen zum Kaltumformen. Sie behandelt kaltgewalzte Erzeugnisse von Dicken t < 3 mm und warmgewalzte Erzeugnisse von Dicken t  6 mm.
Diese Erzeugnisse werden geliefert als Blech, Breitband, längsgeteiltes Breitband oder Stäbe, die durch Ablängen von längsgeteiltem Breitband erzeugte werden.
Flacherzeugnisse aus Mehrphasenstählen für die Kaltumformung dürfen mit einem elektrolytischen Zinküberzug nach EN 10152 geliefert werden.

Produits plats non revêtus laminés à chaud et à froid en aciers multiphasés pour formage à froid - Conditions techniques de livraison

1.1   La présente Norme européenne s’applique aux produits plats en acier non revêtus laminés à chaud et à froid élaborés en aciers multiphasés pour formage à froid. Elle couvre les produits laminés à froid d’épaisseur inférieure ou égale à 3 mm et aux produits laminés à chaud d’épaisseur inférieure ou égale à 6 mm.
Ces produits sont livrés en tôles, larges bandes, larges bandes refendues ou bandes refendues coupées à longueur qui y sont découpées.
NOTE   Les produits en aciers multiphasés pour formage à froid peuvent être livrés avec un revêtement de zinc électrolytique selon EN10152.

Vroče in hladno valjani neprevlečeni izdelki večfaznih jekel za hladno oblikovanje - Tehnični dobavni pogoji

Ta evropski standard se uporablja za vroče in hladno valjane neprevlečene ploščate jeklene izdelke iz večfaznih jekel za hladno oblikovanje. Zajema hladno valjane izdelke debeline največ 3 mm in vroče valjane izdelke debeline največ 6 mm.
Ti izdelki so dobavljeni v ploščah, širokih trakovih, rezanih širokih trakovih ali rezanih dolžinah iz rezanih širokih trakov.
Ploščati izdelki iz večfaznih jekel za hladno oblikovanje so lahko dobavljeni z elektrolitsko cinkovo prevleko v skladu z EN 10152.

General Information

Status
Published
Publication Date
14-Jul-2015
Current Stage
9093 - Decision to confirm - Review Enquiry
Due Date
04-Mar-2021
Completion Date
17-Mar-2021

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kaltgewalzte und warmgewalzte Flacherzeugnisse ohne Überzug aus Mehrphasenstählen zum Kaltumformen - Technische LieferbedingungenProduits plats non revêtus laminés à chaud et laminés à froid d'aciers multiphases pour formage à froid - Conditions techniques de livraisonHot rolled and cold rolled non-coated products of multiphase steels for cold forming - Technical delivery conditions77.140.50SROL]GHONLFlat steel products and semi-productsICS:Ta slovenski standard je istoveten z:EN 10338:2015SIST EN 10338:2015en,fr,de01-oktober-2015SIST EN 10338:2015SLOVENSKI

STANDARD
SIST EN 10338:2015
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 10338
July 2015 ICS 77.140.50 English Version

Hot rolled and cold rolled non-coated products of multiphase steels for cold forming - Technical delivery conditions

Produits plats non revêtus laminés à chaud et à froid en aciers multiphasés pour formage à froid - Conditions techniques de livraison

Kaltgewalzte und warmgewalzte Flacherzeugnisse ohne Überzug aus Mehrphasenstählen zum Kaltumformen - Technische Lieferbedingungen This European Standard was approved by CEN on 16 April 2015.

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
CEN-CENELEC Management Centre:
Avenue Marnix 17,

B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10338:2015 ESIST EN 10338:2015

EN 10338:2015 (E) 2 Contents Page European foreword .............................................................................................................................................3 1 Scope ......................................................................................................................................................4 2 Normative references ............................................................................................................................4 3 Terms and definitions ...........................................................................................................................5 4 Dimensions and tolerances ..................................................................................................................5 5 Classification and designation .............................................................................................................6 5.1 Classification ..........................................................................................................................................6 5.2 Designation ............................................................................................................................................6 6 Information to be supplied by the purchaser at the time of enquiry and order ..............................6 6.1 Mandatory information ..........................................................................................................................6 6.2 Options ...................................................................................................................................................7 7 Manufacturing process and delivery conditions ................................................................................7 7.1 Manufacturing process .........................................................................................................................7 7.2 Delivery conditions ................................................................................................................................7 8 Requirements .........................................................................................................................................8 8.1 Chemical composition ..........................................................................................................................8 8.2 Mechanical properties ........................................................................................................................ 10 8.3 Surface properties .............................................................................................................................. 11 8.3.1 Hot rolled products ............................................................................................................................. 11 8.3.2 Cold rolled products ........................................................................................................................... 12 8.4 Suitability for surface coating ........................................................................................................... 12 8.5 Weldability ........................................................................................................................................... 12 9 Inspection ............................................................................................................................................ 12 9.1 Types of inspection and inspection documents ............................................................................. 12 9.2 Test units ............................................................................................................................................. 12 9.3 Tests to be carried out ....................................................................................................................... 12 9.4 Sampling .............................................................................................................................................. 13 9.5 Test methods ....................................................................................................................................... 13 9.5.1 Tensile test .......................................................................................................................................... 13 9.5.2 Strain hardening exponent ................................................................................................................ 13 9.5.3 Bake Hardening index ........................................................................................................................ 13 9.5.4 Surface inspection .............................................................................................................................. 13 9.6 Retests ................................................................................................................................................. 13 10 Marking ................................................................................................................................................ 14 11 Packing ................................................................................................................................................ 14 12 Storage and transportation ................................................................................................................ 14 13 Disputes ............................................................................................................................................... 14 Bibliography ..................................................................................................................................................... 15

SIST EN 10338:2015

EN 10338:2015 (E) 3 European foreword This document (EN 10338:2015) 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 January 2016, and conflicting national standards shall be withdrawn at the latest by January 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. 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 10338:2015

EN 10338:2015 (E) 4 1 Scope This European Standard applies to hot rolled and cold rolled non-coated steel flat products made of multiphase steels for cold forming. It covers cold rolled products of thicknesses t < 3 mm and hot rolled products of thicknesses t ≤ 6 mm. These products are delivered in sheet, wide strip, slit wide strip or cut lengths obtained from slit wide strip. Flat products of multiphase steels for cold forming may be delivered with an electrolytic zinc coating according to EN 10152. 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. 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 10049, Measurement of roughness average Ra and peak count RPc on metallic flat products EN 10051, Continuously hot-rolled strip and plate/sheet cut from wide strip of non-alloy and alloy steels - Tolerances on dimensions and shape 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 and zinc or zinc-nickel electrolytically coated low carbon and high yield strength steel flat products for cold forming - 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 377:2013, Steel and steel products - Location and preparation of samples and test pieces for mechanical testing (ISO 377:2013) EN ISO 6892-1:2009, Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-1:2009) ISO 10275, Metallic materials — Sheet and strip — Determination of tensile strain hardening exponent SIST EN 10338:2015

EN 10338:2015 (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 ferritic-bainitic steel (F) steel with a matrix of ferrite or strengthened ferrite containing bainite or strengthened bainite Note 1 to entry: The strengthening of the matrix is caused by a high density of dislocations, by grain refinement and precipitation of micro-alloying elements. 3.2 dual-phase steel (X) steel consisting of mainly ferrite and martensite and possible bainite as a complementary phase Note 1 to entry: According to their high tensile strength levels, dual phase steels show a low yield strength ratio and a high work hardening rate. 3.3 transformation induced plasticity steel (T) steel with a ferritic matrix containing retained austenite capable of transformation into martensite during the forming process (TRIP effect) Note 1 to entry: Because of high work-hardening rate the steel reaches high uniform elongation values and high tensile strength levels. 3.4 complex-phase steel (C) steel with a multiphase microstructure containing mainly bainite, ferrite, whereas martensite, tempered martensite, retained austenite and pearlite may be present as additional phases Note 1 to entry: The fine grained microstructure may be generated by retarded recrystallisation or precipitation of micro-alloying elements. 3.5 martensitic steel (MS) steel with a martensitic matrix containing small amounts of ferrite and/or bainite Note 1 to entry: Within the group of multiphase steels the MS steels show the highest tensile strength level. 3.6 multiphase steel (MP) steel with a multiphase microstructure containing significant amounts of non-ferritic phases as e.g. bainite, martensite and/or tempered martensite Note 1 to entry: MP steels are multiphase steels that cannot be considered as ferritic-bainitic, dual-phase, TRIP, complex-phase and martensitic steels (see 3.1 to 3.5). 4 Dimensions and tolerances The tolerances on dimensions and shape shall be those given in EN 10051 for the hot rolled products and in EN 10131 for the cold rolled products. SIST EN 10338:2015

EN 10338:2015 (E) 6 5 Classification and designation 5.1 Classification The steel grades covered by this standard are alloy quality steels in accordance with EN 10020:2000. They shall be classified in accordance with their increasing minimum tensile strength (Rm ) (see Tables 1, 2, 4 and 5). 5.2 Designation The steel names in this European Standard are in compliance with EN 10027-1; the steel numbers are assigned in accordance with EN 10027-2. The designation consists of the expression “sheet”, “hot rolled wide strip”, “cold rolled wide strip”, “slit hot rolled wide strip”, “slit cold rolled wide strip”, “hot rolled cut length” or “ cold rolled cut length” followed in order by: — the reference to this European Standard EN 10338; — the steel name or number of the steel grade according to Table 1, Table 2, Table 4 and Table 5. EXAMPLE 1 Hot rolled strip delivered with nominal thickness of 2,00 mm, nominal width of 1500 mm in accordance with EN 10051, made of steel HDT450F (1.0961) in accordance with EN 10338: Hot rolled strip EN 10051 — 2,00x1500 — steel EN 10338 — HDT450F or Hot rolled strip EN 10051 — 2,00x1500 — steel EN 10338 — 1.0961 EXAMPLE 2 Cold rolled strip delivered with nominal thickness of 1,5 mm, nominal width of 1000 mm in accordance with EN 10131, made of steel grade HCT690T (1.0947) in accordance with EN 10338: Cold rolled strip EN 10131 — 1,5x1000 — steel EN 10338 — HCT690T or Cold rolled strip EN 10131 — 1,5x1000 — steel EN 10338 — 1.0947 6 Information to be supplied by the purchaser at the time of enquiry and order 6.1 Mandatory information The following information shall be supplied by the purchaser at the

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