1、DEUTSCHE NORM December 1998 Electrolytically zinc-nickel (ZN) coated steel flat products Techn ical delivery conditions English version of DIN EN 10271 DIN EN 10271 ICs 77.1 40.50 Descriptors: Steel, electrodeposited coatings, testing. Flacherzeugnisse aus Stahl mit elektrolytisch abgeschiedenen Zin
2、k-Nickel (ZN)-berzgen - Technische Lieferbedingungen European Standard EN 10271 : 1998 has the status of a DIN Standard. A comma is used as the decimal marker. National foreword This standard has been prepared by ECISS/TC 27. The responsible German body involved in its preparation was the Normenauss
3、chu Eisen und Stahl (Steel and Iron Standards Committee), Technical Committee Oberflachenveredelte Flacherzeugnisse aus Stahl. DIN V 17006-1 O0 and DIN 501 11 are the standards corresponding to documents CR 10260 and EURO- NORM 12, respectively, referred to in clause 2 of the EN. National Annex NA S
4、tandards referred to (and not included in Normative references) DIN V 17006-1 O0 Designation systems for steel - Additional symbols for steel names DIN 501 11 Bend testing of metallic materials EN coomprises 26 pages. No pari of this standard may be reproduced without the prior permission of Ref. No
5、. DIN EN 10271 : 1998-1 V Deutsches Institut fur Normung e. V., Berlin. Luth Verlag GmbH, D-10772 Berlin, has the exclusive right of sale for German Standards (DIN-Normen). English price group O9 . Sales No. 1109 06.99 COPYRIGHT DIN DEUTSCHES Institut Fur Normung E.V.- EnglishLicensed by Information
6、 Handling ServicesCOPYRIGHT DIN DEUTSCHES Institut Fur Normung E.V.- EnglishLicensed by Information Handling ServicesEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10271 November 1998 ICs 77.140.50 Descriptors: Steel, electrodeposited coatings, testing. English version Electrolytically zinc-ni
7、ckel (ZN) coated steel flat products Technical delivery conditions Produits plats en acier, revtus de zinc-nickel (ZN) par voie lectrolyti- que - Conditions techniques de livraison Lieferbedingungen Flacherzeugnisse aus Stahl mit elektrolytisch abgeschiedenen Zink- Nickel (ZN)-berzgen - Technische T
8、his European Standard was approved by CEN on 1998-1 1-05. CEN members are bound to comply with the CENKENELEC 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 reference
9、s concerning such national stand- ards may be obtained on application to the Central Secretariat or to any CEN member. The European Standards exist in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into
10、its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portu
11、gal, Spain, Sweden, Switzerland, and the United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1998. CEN - All rights of exploitation in any form and by any means reserved wo
12、rldwide for CEN national members. Ref. No. EN 10271 : 1998 E COPYRIGHT DIN DEUTSCHES Institut Fur Normung E.V.- EnglishLicensed by Information Handling ServicesPage 2 EN 10271 : 1998 Contents Foreword 3 1 2 3 4 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.9 5.10 5.11 5.12 5.13 5.14 6 6.1 6.2 6.3 6.4 6.5 6.6 6.7
13、7 8 9 10 5.8 Scope Normative references Definitions Designation Requirements General Steelmaking and manufacturing process Deoxidation Chemical composition Delivery condition Choice of properties Mechanical properties Stretcher strain marks Coatings Adhesion of coating Surface characteristics Surfac
14、e treatment Applications Mass, tolerances on dimensions and shape Testing General Test units Number of tests Sampling Test methods Retests Inspection documents Marking Packing Storage and transportation Information to be supplied by the purchaser Annex A (informative): Bibliography Annex B (normativ
15、e): Reference method for the determination of the zinc-nickel coating mass and the zinc-nickel coating composition 4 5 6 7 a a a a a 8 8 8 14 14 15 16 17 17 ia 18 18 19 19 19 20 20 ia 20 21 21 21 23 24 COPYRIGHT DIN DEUTSCHES Institut Fur Normung E.V.- EnglishLicensed by Information Handling Service
16、sPage 3 EN 10271 : 1998 Foreword This European Standard has been prepared by Technical Committee ECISS/TC 27 “Surface coated flat products -Qualities,dimensions, tolerances and specific tests“, the secretariat of which is held by DIN. This European Standard shall be given the status of a national st
17、andard, either by publication of an identical text or by endorsement, at the latest by May 1999, and conflicting national standards shall be withdrawn at the latest by May 1999. ECISS/TC 27 met on 1996-11-26 in Dsseldorf and agreed on the text for submission of this draft European Standard to Formal
18、 Vote. The following countries were represented in that meeting: Austria, Belgium, France, Germany, Netherlands and United Kingdom. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austri
19、a, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. COPYRIGHT DIN DEUTSCHES Institut Fur Normung E.V.- EnglishLicensed by Information Handling ServicesPage 4 EN 1
20、0271 : 1998 1 Scope 1.1 This European Standard specifies requirements for contin- uously electrolytic zinc-nickel coated cold rolled flat products of low carbon steels suitable for cold forming according to ta- ble l and table 2 in rolled widths 600 mm and thicknesses from 0,35 mm up to and includin
21、g 3 mm, delivered as strip (in coil form), sheet, slit strip or cut lengths obtained from slit strip or sheet. The coating is composed of Zn with a Ni-content of 10,s % to 13 %. 1.2 This European Standard may also be applied to the coating requirements of continuously electrolytic zinc-nickel coated
22、 cold rolled flat products of a) steels according to EN 10139 (cold rolled strip in rolled widths 600 m), b) other types of low carbon steel for cold forming, c) steels normally characterized by minimum yield strength values in addition to formability parameters, e. g. - steels with high yield stren
23、gth and improved formability - rephosphorized steels and bake-hardening steels, - general purpose structural steels. according to EN 10268 or other microalloyed steels, 1.3 By special agreement at the time of ordering this European Standard may be applied to the coating requirements of continuously
24、electrolytic zinc-nickel coated hot-rolled steel flat products (e.g. according to EN 10025, EN 10111, EN 10149-1 to EN 10149-3 etc.). 1.4 The coating masses, surface qualities and surface finishes are given in 5.9, 5.11 and table 3. As the mass of the zinc- nickel coating applied is relatively small
25、, the material is not intended to withstand outside exposure without further chemical treatment and painting. 1.5 This European Standard is not applicable to - hot-dip zinc coated steel strip and sheet (see EN 10142 and EN 10147), - electrolytically zinc coated cold rolled flat products (see EN 1015
26、2) , - continuously hot-dip aluminium-silicon (AS) coated steel strip and sheet (see EN 10154). - continuously organic coated steel flat products (see EN 101691, COPYRIGHT DIN DEUTSCHES Institut Fur Normung E.V.- EnglishLicensed by Information Handling ServicesPage 5 EN 10271 : 1998 - continuously h
27、ot-dip zinc-aluminium (ZA) coated steel strip and sheet (see EN 10214), - continuously hot-dip aluminium-zinc (AZ) coated steel strip and sheet (see EN 10215). 2 Normative references This European Standard incorporates by dated or undated refer- ence provisions from other publications. These normati
28、ve refer- ence are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, sub- sequent amendments to or revisions of any of these publications apply to this draft European Standard only when incorporated in it by amendment or revision. For undate
29、d references, the latest edition of ENV 606 EN 10002-1 EN 10002-2 EN 10002-4 EN 10020 EN 10021 EN 10027-1 EN 10027-2 EN 10079 EN 10130 the publication referred to applies. Bar coded transport and handling labels for steel products Metallic materials - Tensile testing - Part 1: Method of testing (at
30、ambient temperature) “including Addendum AC1:1990“ Metallic materiais - Tensile testing - Part 2: Veri- fication of the force measuring system of the ten- sile testing machines Metallic materials - Tensile testing - Part 4: Veri- fication of extensometers used in uniaxial testing Definition and clas
31、sification of grades of steel General technical delivery requirements for steel and iron products Designation systems for steels - Part 1: Steel names, principal symbols Designation systems for steels - Part 2: Numerical system Definition of steel products Cold rolled low carbon steel flat products
32、for cold forming - Technical delivery conditions COPYRIGHT DIN DEUTSCHES Institut Fur Normung E.V.- EnglishLicensed by Information Handling ServicesPage 6 EN 10271 : 1998 EN 10131 Cold-rolled non-coated flat products in low carbon steel for cold forming - tolerances on dimensions and shape EN 10139
33、Cold rolled uncoated low carbon steel strip for cold forming - Technical delivery conditions EN 10204 Metallic products - Types of inspection documents (includes amendment A1:1995) EN 10268 Cold-rolled flat products made of high yield strength steels for cold forming - General technical delivery con
34、ditions CR 10260 ECISS IC 10- Designation systems for steel - Ad- ditional symbols for steel names EURONORM 12 (1955)l Bend test for steel sheet and strip less than 3 mm thick IS0 10113 Metallic materials - Sheet and strip - Determination of plastic strain ratio IS0 10275 Metallic materials - Sheet
35、and strip - Determination of tensile strain hardening exponent 3 Definitions For the purposes of this European Standard the following defini- tion applies in addition to the definitions in EN 10020, EN 10021, EN 10079 and EN 10204. 3.1 Electrolytic zinc-nickel coating (ZN): Application of a zinc-nic
36、kel coating by electrolysis on a suitably prepared steel surface from an aqueous salt solution by the use of an electric current. NOTE: Flat products may have a zinc-nickel coating on one or both surfaces. If both surfaces are zinc-nickel coated, a different coating thickness may be applied on each
37、side (this process being referred to as differential zinc-nickel coating). Until they are transformed the EURONORMS referred to standards may be applied. into European Standards, either or the corresponding national COPYRIGHT DIN DEUTSCHES Institut Fur Normung E.V.- EnglishLicensed by Information Ha
38、ndling ServicesPage 7 EN 10271 : 1998 4 Designation 4.1 The steel names are allocated in accordance with EN 10027-1 and CR 10260 - the steel numbers are allocated in accordance with EN 10027-2. 4.2 The products covered by this European Standard shall be designated as follows in the order given: a) T
39、ype of product (e. g. strip, sheet, cut length), b) Number of this standard (EN 10271), c) Steel name or steel number and symbol for the type of electrolytically coating (see table 1 and table 2), d) Numbers denoting the minimum coating thickness on each surface (e. g. 50/50 = minimum coating thickn
40、ess of 5,O pm on each surface, see table 3, 5.9.2, 5.9.4 and 5.9.5). e) Letters A or B indicating the surface quality (see 5.11.2). f) Letters denoting the surface treatment (see 5.12 and table 4). Example 1: Designation of strip made of steel DC03+ZN, (1.0347+ZN), electrolytically zinc-nickel coate
41、d with a nominal thickness of 5,O pm on each surface (50/50), surface quality A, surface treatment oiled (O): or Strip EN 10271-DC03+ZN50/50-A-O Strip EN 10271-1.0347+ZN50/50-A-O Example 2: Designation of sheet made of steel DC05+ZN (1.0312+ZN), electrolytically zinc-nickel coated with a nominal thi
42、ckness of 5,O pm on one surface and of 2,O p on the other surface (50/20), surface quality B, surface treatment oiled (O). Sheet EN 10271-DC05+ZN50/20-B-O Sheet EN 10271-1.0312+ZN50/20-B-O or 4.3 Where appropriate, additional information to the designa- tion as specified in 4.2 shall be given to des
43、cribe clearly the delivery requirements (see clause 10). COPYRIGHT DIN DEUTSCHES Institut Fur Normung E.V.- EnglishLicensed by Information Handling ServicesPage 8 EN 10271 : 1998 5 Requirements 5.1 Gemera1 The requirements according to 5.2 to 5.5 and 5.13 apply to the steel substrates given in table
44、 1 and table 2. For other steels used as substrate for electrolytically deposit- ed coatings of zinc-nickel (see 1.2 and 1.3) the requirements shall be based on the appropriate quality standard for the non-coated steel product. 5.2 Steelmaking and manufacturing processes Unless otherwise agreed at t
45、he time of ordering, the steelmaking and manufacturing processes are left to the discretion of the manufacturer. The purchaser shall be informed of these process- es, if he requires it. 5.3 Deoxidation The method of deoxidation shall be in accordance with that specified in table 1 and table 2. 5 . 4
46、 Chemical composition The chemical composition based on ladle analysis shall be as given in table 1 and table 2. 5.5 Delivery condition The steel substrates are normally supplied in the skin-passed condition. By agreement at the time of the enquiry and order non skin-passed products may be supplied.
47、 5.6 Choice of Properties The products covered by this European Standard shall comply with the requirements of table 1 and table 2. By agreement they may be delivered as suitable for making a particular part; in this case a maximum percentage of scrap may be agreed and acceptance on the basis of mec
48、hanical properties is not applicable. 5.7 Mechanical properties 5.7.1 The mechanical properties are given in table 1 and table 2. COPYRIGHT DIN DEUTSCHES Institut Fur Normung E.V.- EnglishLicensed by Information Handling ServicesPage 9 EN 10271 : 1998 NOTE: The properties in table 2 are those specif
49、ied for cold rolled non-coated low carbon steel flat products according to EN 10130 with the exception of the Re, A, and nso values for the grades DC04+ZN, DC05+ZN and DC06+ZN which have been altered with respect to the influence of the electrolytical treatment on those properties. The mechanical properties are valid for the period specified in table 1 and table 2 from the date on which the products are made available. The date of availability shall be notified to the purchaser with reasonable prior notice compatible with the validity of the mechanical properties. Prolonged
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