1、BSI Standards PublicationBS EN 10139:2016Cold rolled uncoated lowcarbon steel narrow stripfor cold forming Technicaldelivery conditionsBS EN 10139:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 10139:2016.It supersedes BS EN 10139:1998 which is withdrawn.T
2、he UK participation in its preparation was entrusted to TechnicalCommittee ISE/109, Coated and Uncoated Flat Products to be Usedfor Cold Forming.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the neces
3、saryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 83661 9ICS 77.140.50Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was p
4、ublished under the authority of theStandards Policy and Strategy Committee on 29 February 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 10139:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10139 February 2016 ICS 77.140.50 Supersedes EN 10139:1997Engl
5、ish Version Cold rolled uncoated low carbon steel narrow strip for cold forming - Technical delivery conditions Feuillards non revtus lamins froid en aciers bas carbone pour formage froid - Conditions techniques de livraison Kaltband ohne berzug aus weichen Sthlen zum Kaltumformen - Technische Liefe
6、rbedingungen This European Standard was approved by CEN on 13 December 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 bibli
7、ographical 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 respons
8、ibility 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 Repub
9、lic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALI
10、SATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10139:2016 EBS EN 10139:2016EN 10139:2016 (E) 2 Contents Page European fore
11、word . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 5 4 Classification and designation 5 5 Designation 5 6 Properties 6 6.1 Steel making process and chemical composition 6 6.2 Choice of properties . 6 6.3 Mechanical and technological properties 6 6.4 Surface characteristics 6 6.4.1
12、 General 6 6.4.2 Surface appearance 7 6.4.3 Surface finish 7 6.5 Stretcher strain marks 7 6.6 Suitability for the application of surface coating . 7 6.7 Weldability 8 6.8 Dimensions, mass, permissible tolerances 8 7 Testing . 8 7.1 Agreement on acceptance testing . 8 7.2 Acceptance units and number
13、of tests . 8 7.3 Sampling and preparation of test pieces 9 7.4 Test methods to be followed . 9 7.5 Re-tests . 9 8 Marking . 9 9 Oiling 9 10 Packing . 10 11 Information to be supplied by the purchaser 10 12 Disputes . 10 BS EN 10139:2016EN 10139:2016 (E) 3 European foreword This document (EN 10139:20
14、16) 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,
15、 at the latest by August 2016, and conflicting national standards shall be withdrawn at the latest by August 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 an
16、y or all such patent rights. This document supersedes EN 10139:1997. 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, Croatia, Cyprus, Czech Republic, Denmark,
17、 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. BS EN 10139:2016EN
18、 10139:2016 (E) 4 1 Scope 1.1 This European Standard applies to cold rolled narrow strip in coils and cut lengths in thicknesses up to 10 mm and of widths less than 600 mm, made from low carbon, unalloyed and alloyed steels in accordance with Table 1. These products are suitable for cold forming. Th
19、ey are also suitable for surface coating. On the other hand, they are not suitable for hardening treatment followed by tempering. 1.2 This European Standard does not cover cold rolled flat products for which a separate standard already exists, particularly the following products: cold rolled non-ori
20、ented electrical steel sheet and strip delivered in the fully processed state (EN 10106); grain-oriented electrical steel sheet and strip delivered in the fully processed state (EN 10107); cold rolled electrical non-alloy and alloy steel sheet and strip delivered in the semi-processed state (EN 1034
21、1); cold rolled narrow steel strip for heat treatment (EN 10132-1 to 4); cold rolled steel flat products with higher yield strength for cold forming (EN 10268); cold rolled low carbon steel flat products for cold forming (EN 10130); cold reduced blackplate in coil form for the production of tinplate
22、 or electrolytic chromium/chromium oxide coated steel (EN 10205); cold rolled low carbon steel flat products for vitreous enamelling (EN 10209). 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application.
23、 For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 10020, Definition and classification of grades of steel EN 10021, General technical delivery conditions for steel products EN 10027-1, D
24、esignation 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 10079, Definition of steel products EN 10140:2006, Cold rolled narrow steel strip -
25、Tolerances on dimensions and shape EN 10204, Metallic products - Types of inspection documents BS EN 10139:2016EN 10139:2016 (E) 5 EN ISO 377, Steel and steel products - Location and preparation of samples and test pieces for mechanical testing (ISO 377:2013, Corrected version 2015-06-01) EN ISO 650
26、7 (all parts), Metallic materials Vickers hardness test (ISO 6507) EN ISO 6892-1:2009, Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-1:2009) ISO 10113, Metallic materials Sheet and strip Determination of plastic strain ratio ISO 10275, Metallic materials
27、 Sheet and strip Determination of tensile strain hardening exponent 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10079 apply. 4 Classification and designation 4.1 This European Standard specifies the grades listed in Table 1. In the case of steel g
28、rade DC01, the deoxidation method shall be left to the manufacturers discretion. Steel grades DC03, DC04, DC05, DC06 and DC07 shall be supplied fully killed. 4.2 Products manufactured from these steels may be ordered and supplied in different delivery conditions (see Table 1) and with different surf
29、ace characteristics (see 6.4 and Table 2). 4.3 For the purposes of the specifications of this European Standard, the selection of steel grade, delivery condition and surface characteristics are of the responsibility of the purchaser. NOTE 1 In case of narrow widths, strip complying with this Europea
30、n Standard can also be wound in layers and supplied in the form of a bobbin wound coil. NOTE 2 After uncoiling and shearing, strip can be supplied in cut lengths. 5 Designation The symbol designation of the steel grades in this European Standard is in accordance with EN 10027-1 and the numerical des
31、ignation is allocated in accordance with EN 10027-2. The standard designation consists of the words narrow strip or cut lengths, followed in order by: a) reference to this European Standard, EN 10139; b) the symbol DC, followed by the grade designation (01, 03, 04, 05, 06 and 07); c) the symbol for
32、delivery condition (see Table 1); d) the symbol for surface appearance (MA, MB or MC, see Table 2); e) the symbol for surface finish where appropriate (RN, RL, RM or RR, see 6.4.3 and Table 2). EXAMPLE 1 Designation of cold rolled narrow strip, 1,50 mm thick, having a normal tolerance on the nominal
33、 thickness, a width of 200 mm, having a normal tolerance on the nominal width, slit edges (GK) and made from BS EN 10139:2016EN 10139:2016 (E) 6 steel grade DC04, in a lightly skin-passed condition (LC) with a smooth and uniform surface appearance (MB) and a “matt” surface finish (RM): Narrow strip
34、EN 10140:2006 1,50 200 GK Steel EN 10139 DC04 + LC MB RM EXAMPLE 2 Designation of cold rolled narrow strip, 2,00 mm thick, having a normal tolerance on the nominal thickness, a width of 450 mm, having a normal tolerance on the nominal width, slit edges (GK) and made from steel grade DC03, in the ann
35、ealed condition (A), with a bright, metallically clean surface appearance (MA) and a smooth surface finish (RL): Narrow strip EN 10140:2006 2,00 450 GK Steel EN 10139 DC03 + A MA RL 6 Properties 6.1 Steel making process and chemical composition 6.1.1 The steel making process shall be left to the dis
36、cretion of the manufacturer. 6.1.2 The chemical composition based on ladle analysis shall be as given in Table 1. 6.2 Choice of properties The products covered by this European Standard shall comply with the specifications given in Table 1. If agreed separately, they may be supplied with a special s
37、uitability for making a particular part; in this case, a maximum percentage of processing scrap may be fixed by common agreement and acceptance tests on the basis of the mechanical properties shall not apply. 6.3 Mechanical and technological properties 6.3.1 The mechanical and technological properti
38、es of the products are given in Table 1. These properties are guaranteed for the periods specified in Table 1 with effect from the date that the products are made available for delivery. The purchaser shall be informed of this date when the products are to be made available, with a warning appropria
39、te to the guarantee of mechanical properties. Storage of grade DC01 products for more than 3 months may cause a change in the mechanical properties likely to give rise to a reduction in the suitability for forming and drawing. 6.3.2 The usual test for checking the mechanical properties given in Tabl
40、e 1 is the tensile test. However, if agreed at the time of ordering, hardness values may be specified instead of tensile test properties, but not both. 6.3.3 The tensile test values shall apply to longitudinal test pieces. 6.4 Surface characteristics 6.4.1 General Surface characteristics concern sur
41、face appearance and surface finish. These shall be specified by the purchaser at the time of ordering. Unless otherwise specified at the time of ordering, the products shall be supplied with a surface appearance MA and a smooth surface finish RL (Ra 0,6 m). BS EN 10139:2016EN 10139:2016 (E) 7 6.4.2
42、Surface appearance 6.4.2.1 Cold rolled flat products covered by this European Standard may be supplied with surface appearances MA, MB or MC as described in Table 2. The required surface appearance shall be stated in the designation (see Clause 5). 6.4.2.2 The characteristics indicated in Table 2 ap
43、ply to the surface actually inspected, which is generally the outside surface of coils and the top surface of lengths. The appearance of the uninspected surface shall correspond at least to surface appearance MA. These characteristics shall not apply to the first two inner and outer laps of coil or
44、to lengths cut from them. 6.4.3 Surface finish 6.4.3.1 The surface finish may be rough, matt, smooth or mirror finish, as given in Table 2. Products with surface appearances MA and MB are generally supplied with a smooth surface finish (RL). If rough (RR) or matt (RM) finishes are required, the corr
45、esponding symbol shall be given in the designation (see Clause 5). The surface appearance MC shall only be supplied with a “mirror” finish (RN). 6.4.3.2 The different surfaces finishes are characterized by the following reference values of mean roughness Ra: RR: rough: Ra 1,5 m; RM: matt: 0,6 m Ra 1
46、,8 m; RL: smooth: Ra 0,6 m; RN: mirror finish: Ra 0,2 m. 6.5 Stretcher strain marks The tendency towards the formation of fractures or stretcher strain marks during forming may be eliminated for a time by light skin-passing (LC) after annealing. It is in the purchaser interest to form the products a
47、s soon as possible as the tendency to form such marks may reappear a certain time after the skin-pass. The guarantee period of freedom from stretcher strain marks is three months for grade DC01 and six months for grades DC03, DC04 and DC05, from the agreed date when the product is available for deli
48、very. Products of grades DC06 and DC07 do not exhibit stretcher strain marks, whether delivered skin-passed or non-skin-passed. 6.6 Suitability for the application of surface coating 6.6.1 The products covered by this European Standard are suitable for surface coatings taking into account the follow
49、ing requirements: a) all the products shall be suitable for organic coating; BS EN 10139:2016EN 10139:2016 (E) 8 b) all the products shall be suitable for the application of a metallic coating, e.g. zinc, tin or lead by means of hot dipping or thermal spraying; c) all the products with surface appearances MB or MC shall be suitable for electrolytic coating. 6.6.2 The application of surface coatings requires that the surface be suitably prepared before-hand by the processor. The type of coating shall be agree
