1、BRITISH STANDARD BS EN 10202:2001 Incorporating Corrigendum No. 1 Cold reduced tinmill products Electrolytic tinplate and electrolytic chromium/ chromium oxide coated steel The European Standard EN 10202:2001 has the status of a British Standard ICS 77.140.50 BS EN 10202:2001 This British Standard,
2、having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 May 2001 BSI 19 December 2003 ISBN 0 580 37204 9 National foreword This British Standard is the official English language version of
3、EN 10202:2001, including Corrigendum October 2003. It supersedes BS EN 10202:1990 and BS EN 10203:1991 which are withdrawn. The UK participation in its preparation was entrusted to Technical Committee ISE/29, Tinplate and blackplate, which has the responsibility to: A list of organizations represent
4、ed on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or
5、 by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer imm
6、unity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. S
7、ummary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 45 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Sidelining in this document indicates the most recent changes by amendment.
8、Amendments issued since publication Amd. No. Date Comments 14845 Corrigendum No. 1 19 December 2003 Indicated by a sideline EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10202 March 2001 ICS 77.140.50 Supersedes EN 10202:1989 and EN 10203:1991Incorporating corrigendum October 2003 English ver
9、sion Cold reduced tinmill products Electrolytic tinplate and electrolytic chromium/chromium oxide coated steel Aciers pour emballage lamins froid Fer blanc lectrolytique et fer chrom lectrolytique Kaltgewalzte Verpackungsblecherzeugnisse Elektrolytisch verzinnter und spezialverchromter Stahl This Eu
10、ropean Standard was approved by CEN on 4 February 2001. 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
11、 concerning such national standards may be obtained on application to the 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
12、own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sw
13、eden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membe
14、rs. Ref. No. EN 10202:2001 EPage 2 EN 10202:2001 Contents Foreword .3 1 Scope3 2 Normative references4 3 Terms and definitions .4 4 Information to be supplied by the purchaser .7 5 Designation8 6 Manufacturing features.9 7 Coatings .11 8 Mechanical properties.13 9 Tolerances on dimensions and shape
15、15 10 Welds within a coil.19 11 Marking of differentially coated cold reduced tinplate20 12 Sampling.21 13 Retests22 14 Dispatch and packaging .23 Annex A (informative) Examples of steel types and chemical composition.24 Annex B (normative) De-tinning 25 Annex C (normative) Determination of chromium
16、 using the diphenylcarbazide method.26 Annex D (normative) Electromechanical method for determining tin coating mass.28 Annex E (normative) Methods for determination of metallic chromium and chromium in the oxide on the surface of electrolytic chromium and chromium oxide coated steel 32 Annex F (inf
17、ormative) The Rockwell Hardness test for routine determination of proof strength for double reduced materials .39 Annex G (informative) The springback test for routine determination of proof strength for double reduced material42 Annex H (informative) Alternative marking system for differentially co
18、ated tinplate43 Annex I (informative) List of corresponding former designations.44 Bibliography45 Page 3 EN 10202:2001 Foreword This European Standard has been prepared by Technical Committee ECISS/TC 26, Tinmill products Qualities, dimensions, tolerances and specific tests, the Secretariat of which
19、 is held by BSI. 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 September 2001, and conflicting national standards shall be withdrawn at the latest by September 2001. This European Standard repla
20、ces EN 10202:1989 and EN 10203 :1991. This European Standard revises and combines EN 10202:1989, Cold reduced electrolytic chromium/ chromium oxide coated steel, and EN 10203:1991, Cold reduced electrolytic tinplate. EN 10203 is withdrawn. It is intended that the third European Standard in the prese
21、nt series, EN 10205:1992, Cold reduced blackplate in coil form for the production of tinplate or electrolytic chromium/chromium oxide coated steel, will be withdrawn. COCOR (Coordinating Commission of ECISS) approved the work item to revise EN 10202:1989 at its meeting in November 1996. The followin
22、g countries agreed to participate: Belgium, France, Germany, Italy, Netherlands, Norway and the United Kingdom. The annexes A, F, G, H and I are informative; the annexes B, C, D and E are normative. This European Standard also contains a Bibliography. According to the CEN/CENELEC Internal Regulation
23、s, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United
24、 Kingdom. 1 Scope This European Standard specifies requirements for tinmill products in the form of sheets or coils for subsequent cutting into sheets. Tinmill products consist of single and double reduced low carbon mild steel electrolytically coated with either tin (tinplate) or chromium/chromium
25、oxide (ECCS). Single reduced tinmill products are specified in nominal thicknesses that are multiples of 0,005 mm from 0,17 mm up to and including 0,49 mm. Double reduced tinmill products are specified in nominal thicknesses that are multiples of 0,005 mm from 0,13 mm up to and including 0,29 mm. Th
26、is European Standard applies to coils and sheets cut from coils in nominal minimum widths of 600 mm. NOTE Standard width coils for specific uses, e.g. tabstock, may be slit into narrow strip for supply in coil form. Page 4 EN 10202:2001 2 Normative references This European Standard incorporates by d
27、ated or undated reference, provisions from other publications. These normative references are cited at the appropriate points in the text and the publications are listed hereafter. For dated references, subsequent amendments to, or revisions of, any of these publications apply to this European Stand
28、ard only when incorporated in it by amendment or revision. In the case of undated references, the most recent edition of the publications referred to applies (including amendments). EN 610:1996, Tin and tin alloys Ingot tin EN 10002-1:1989, Metallic materials Tensile testing Part 1: Methods of test
29、(at ambient temperature) EN 10109-1:1996, Metallic materials Hardness test Part 1: Rockwell test (scales A, B, C, D, E, F, G, H, K) and Rockwell superficial test (scales 15N, 30N, 45N, 15T, 30T and 45T) EN ISO 4288, Geometrical product specifications (GPS) Surface texture: Profile method Rules and p
30、rocedures for the assessment of surface texture (ISO 4288 :1996) 3 Terms and definitions For the purposes of this standard the following terms and definitions apply: 3.1 electrolytic tinplate cold rolled low carbon mild steel sheet or coil coated on both surfaces with tin that is applied in continuo
31、us electrolytic operation 3.2 differentially coated electrolytic tinplate electrolytic tinplate, one surface of which carries a heavier tin coating than the other. In some cases one surface may have no tin coating 3.3 electrolytic chromium/chromium oxide coated steel (ECCS) cold rolled low carbon mi
32、ld steel sheet or coil electrolytically treated to produce on both surfaces a duplex film of metallic chromium adjacent to the steel substrate with a top layer of hydrated chromium oxides or hydroxides 3.4 single cold reduced term used to describe those products where the steel substrate has been re
33、duced to the desired thickness in a cold reduction mill and subsequently annealed and temper rolled 3.5 double cold reduced term used to describe those products in which the steel substrate, after annealing, has had a second reduction in excess of 5 %, using a lubricant 3.6 temper rolling secondary
34、rolling process, in which the reduction is less than or equal to 5 %, normally carried out dry 3.7 standard grade material in sheet form that, having passed line inspection, is suitable under normal conditions of storage, for established lacquering and printing over the entire surface of the sheet a
35、nd does not contain any defect that renders the material unsuitable for its intended use (see line inspection 3.25) Page 5 EN 10202:2001 3.8 second grade material that represents the best sheets rejected from the standard grade but may contain sheets exhibiting defects in surface appearance and shap
36、e of limited extent. Suitability for established lacquering and printing over the entire surface of the sheet is not assured. Not normally available in ECCS 3.9 batch (box) annealed (BA) process in which the cold reduced strip is heated in tight coil form, within a controlled atmosphere, for a pre-d
37、etermined time/temperature cycle 3.10 continuously annealed (CA) process in which cold reduced coils are unwound and heated in strip form within a controlled atmosphere for a pre-determined time/temperature cycle 3.11 finish surface appearance of tinmill products is determined by the surface charact
38、eristics of the steel base together with the condition of the coating which, in the case of tinplate, can be either flow-melted or unflow-melted 3.11.1 flow-melting process by which the as deposited tin is heated above its melting point of 232 C and is quickly quenched in cool water resulting in a c
39、omposite coating iron/tin alloy and free tin which exhibits a bright reflective appearance 3.11.2 bright finish finish resulting from the use of temper mill work rolls that have been ground to a high degree of polish and, in the case of tinplate, together with a flow-melted tin coating 3.11.3 stone/
40、fine stone finishes finishes characterized by a directional pattern, resulting from the use of final mill work rolls that have been ground to a lower degree of polish than those used for the bright finish, in the case of tinplate together with a flow-melted tin coating 3.11.4 shot blast finish resul
41、ting from the use of temper mill work rolls that have been shot blasted 3.11.5 silver finish tinplate product resulting from the use of shot blasted temper mill work rolls and with a flow-melted tin coating 3.11.6 matt finish tinplate product resulting from the use of shot blasted temper mill work r
42、olls and with an unflow-melted tin coating 3.12 coil rolled flat strip product which is wound into regularly superimposed laps so as to form a coil with almost flat sides 3.13 bow residual curvature in sheet or coil such that the distance between the edges is less than the appropriate sheet or coil
43、dimension Page 6 EN 10202:2001 3.13.1 longitudinal (line) bow residual curvature in the strip remaining along the direction of rolling 3.13.2 transverse (cross) bow mode of curvature in the sheet such that the distances between its edges parallel to the rolling direction is less than the sheet width
44、 3.14 centre fullness (full centre, centre buckle) intermittent vertical displacement occurring other than at the edge of the sheet or coil when the material is laid on a flat horizontal surface 3.15 short pitch camber deviation of the coil from a straight line forming its chord 3.16 edge wave inter
45、mittent vertical displacement occurring at the edge of a sheet or a sample from a coil when laid on a flat horizontal surface 3.17 feather edge (transverse thickness profile) variation in thickness, characterized by a reduction of thickness close to the edges, at right angles to the rolling directio
46、n 3.18 burr metal displaced beyond the plane of the surface of the strip by shearing action 3.19 rolling width width of the strip perpendicular to the rolling direction 3.20 consignment quantity of material of the same specification made available for despatch at the same time 3.21 bulk package, or
47、bulk packaging unit comprising a stillage platform, the sheets and packaging material 3.22 stillage platform platform on which sheets are stacked to facilitate packing and ready transportation 3.23 skid base platform on which a coil is placed to facilitate ready transportation 3.24 sample unit 750 m
48、 of coil cut into sheets, for the purposes of sampling 3.25 line inspection final inspection of the finished product performed by instruments and/or by visual examination at normal production line speeds Page 7 EN 10202:2001 3.26 anvil effect effect which a hard anvil can produce on the numerical ha
49、rdness value obtained when a hardness test is performed on very thin sheet supported on such an anvil 3.27 S.I.T.A. area of 100 m 2of material (a total surface area of 200 m 2 ) 4 Information to be supplied by the purchaser 4.1 General The following information shall be given on the enquiry and order to assist the manufacturer in supplying the correct material: a) the designation as given in clause 5; b) the quantity expressed as an area (S.I.T.A.s) or mass (tonnes); c) the m
