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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 10142 : 1991 Implem
2、enting Amendment No. 2 not published separately The European Standard EN 10142 : 1990 with the incorporation of its amendment A1 : 1995 has the status of a British Standard ICS 77.140.50 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Specification for Continuously hot-dip zin
3、c coated mild steel strip and sheet for cold forming Technical delivery conditions Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 03:48:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Engineering Sector Board, was published
4、 under the authority of the Standards Board and comes into effect on 15 June 1996 BSI 1996 The following BSI references relate to the work on this standard: Committee reference ISE/10 Draft for comment 88/42905 DC ISBN 0 580 23854 7 BS EN 10142 : 1991 Amendments issued since publication Amd No.DateT
5、ext affected 6932November 1992 Superseded by AMD 8723 8723May 1996Throughout EN 10142 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee ISE/10, Flat rolled steel products, upon which the following bodies were represented: B
6、ritish Railways Board British Steel Industry Cold Rolled Sections Association Society of Motor Manufacturers and Traders Limited The following bodies were also represented in the drafting of the standard, through subcommittees and panels: British Welded Steel Tube Association Coated Metals Limited D
7、epartment of the Environment (Property Services Agency) International Tin Research Institute Metal Roof Deck Association National Association of Steel Stockholders Paintmakers Association of Great Britain Ltd. Zinc Development Association Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 03:48:
8、31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BSI 1996i BS EN 10142 : 1991 Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of EN 101423 National annex NA (informative) Mechanical properties and bend mandrel diameters for material over 3 mm thick11 Licensed C
9、opy: sheffieldun sheffieldun, na, Thu Oct 26 03:48:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii BSI 1996 BS EN 10142 : 1991 National foreword This British Standard has been prepared by Technical Committee ISE/10 and is the English language version of EN 10142 : 1990 Continuously hot-dip zinc coa
10、ted mild steel strip and sheet for cold forming Technical delivery conditions. In 1992, BSI published an amendment no.1 to correct typographical errors. In 1995, CEN published an amendment no.1 which has been adopted by BSI as amendment no.2 and incorporated in this edition of BS EN 10142. Annex B c
11、omprises a summary of the former designations for steel types according to EN 10142 : 1990 and the new designations following the incorporation of amendment 1. National annex NA gives the mechanical properties, mandrel diameters and coatings available for continuously hot dip coated flat products ov
12、er greater thickness than 3 mm. Cross-references Publications referred toCorresponding British Standard EN 10002-1 : 1990BS EN 10002 Tensile testing of metallic materials Part 1 : 1990 Method of test at ambient temperature EN 10025 : 1993BS EN 10025 : 1993 Hot rolled products of non-alloy structural
13、 steels Technical delivery conditions BS EN 10027 Designation systems for steel EN 10027-1 : 1992Part 1 : 1992 Steel names, principal symbols EN 10027-2 : 1991Part 2 : 1992 Steel numbers EN 10204 : 1991BS EN 10204 : 1991 Metallic products. Types of inspection documents EN 10079 : 1992BS EN 10079 : 1
14、993 Definition of steel products EN 10142 : 1990BS EN 10142 : 1991 Specification for continuously hot-dip zinc coated low carbon steel sheet and strip for cold forming: technical delivery conditions EN 10143 : 1993BS EN 10143 : 1993 Continuously hot-dip coated steel sheet and strip. Tolerances on di
15、mensions and shape EN 10147 : 1991BS EN 10147 : 1992 Specification for continuously hot-dip zinc coated structural steel sheet and strip. Technical delivery conditions EURONORM 12BS 1639 : 1964 Methods for bend testing of metals Compliance with a British Standard does not of itself confer immunity f
16、or legal obligations Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 03:48:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels CEN
17、 1995 All rights for reproduction and communication in any form and by any means reserved in all countries to CEN and its members Ref. No. EN 10142 : 1990 + A1 : 1995 E EUROPEAN STANDARDEN 10142 NORME EUROPE ENNE August 1990 EUROPA ISCHE NORM + A1 June 1995 ICS 77.140.50 Descriptors: Metal plates, s
18、teel strips, cold-working, hot-dip galvanizing, continuous coating, low carbon steels, delivery condition, designation, classification, grades, quality English version Continuously hot-dip zinc coated mild steel strip and sheet for cold forming Technical delivery conditions (includes amendment A1 :
19、1995) Bandes a to les en acier doux galvanise es a chaud et en continu pour formage a froid Conditions techniques de livraison (inclut lamendment A1 : 1995) Kontinuierlich feuerverzinktes Band und Blech aus weichen Sta hlen zum Kaltumformen Technische Lieferbedingungen (entha lt A nderung A1 : 1995)
20、 This European Standard was accepted by CEN on 4 August 1990, amendment A1 was accepted by CEN on 1995-05-10. 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 alter
21、ation. Up-to-date lists and bibliographical references concerning such national standards 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 transl
22、ation under the responsibility of a CEN member into 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, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg
23、, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 03:48:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 10142 : 1990 + A1 : 1995 BSI 1996 Foreword to Amendment 1 This amendment 1 to the European Standard EN
24、10142 has been prepared by Technical Committee ECISS/TC 27, Surface coated steel flat products, of which the secretariat is held by DIN. During the 14th COCOR meeting on 27 and 28 May 1993 in Brussels, ECISS/TC 27 was charged to prepare an amendment of EN 10142 in order to work in the new designatio
25、ns according to EN 10027 : Part 1 and ECISS Information Circular IC 10 as well as the steel numbers according to EN 10027 : Part 2. It is intended to issue a second version of EN 10142 as soon as this amendment is adopted. This amendment to European Standard EN 10142 shall be given the status of a n
26、ational standard, either by publication of an identical text or by endorsement, at the latest by December 1995, and conflicting national standards shall be withdrawn at the latest by December 1995. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this
27、 amendment 1 to European Standard EN 10142: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Page Foreword 1Scope3 2Normative references3 3Definitions3 4Designation
28、3 5Classification of grades and types of delivery4 5.1Steel grades4 5.2Coatings4 5.3Coating finish4 5.4Surface quality5 5.5Surface treatment (surface protection)5 6Requirements6 6.1Manufacturing process6 6.2Selection of properties6 6.3Mechanical properties6 6.4Freedom from coil breaks6 6.5Stretcher
29、strains6 6.6Coating mass6 6.7Adhesion of coating6 Page 6.8Surface condition6 6.9Dimensions, tolerances on dimensions and shape7 6.10Suitability for further processing7 7Testing7 7.1General7 7.2Test units7 7.3Number of tests7 7.4Sampling7 7.5Methods of test to be used7 7.6Re-tests8 7.7Inspection docu
30、ment8 8Marking8 9Packing8 10Storage and transportation8 11Disputes9 12Information to be supplied by the purchaser9 Annexes A(normative) Reference method for determination of the zinc coating mass10 B(informative) List of corresponding former designations10 Licensed Copy: sheffieldun sheffieldun, na,
31、 Thu Oct 26 03:48:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 10142 : 1990 + A1 : 1995 BSI 1996 1) Until it is transformed into a European Standard, either EURONORM 12 or the corresponding national standard may be applied. 1 Scope 1.1 This European Standard specifies requirements for con
32、tinuously hot-dip zinc coated flat products in thicknesses up to 3,0 mm unless otherwise agreed at the time of ordering made of the steel given in subclause 5.1 and table 1. The thickness is the final thickness of the delivered product after zinc coating. This European Standard applies to strip of a
33、ll widths and to sheets cut from it ($ 600 mm width) and cut lengths ( 600 mm width). The types of coating, coating masses and coating finishes available, and surface qualities are given in tables 2 to 4 (see also 5.2 to 5.4). 1.2 The products covered by this European Standard are suitable for appli
34、cations where suitability for forming and resistance to corrosion are of prime importance. Corrosion protection afforded by the coating is directly proportional to the mass of coating (see also 5.2.2). 1.3 This European Standard is not applicable to continuously hot-dip zinc coated structural steel
35、strip and sheet (see EN 10147); electrolytically zinc coated cold rolled steel flat products (see EN 10152); continuously organic coated (coil coated) steel flat products (see EN 10169). 2 Normative references This European Standard incorporates by dated or undated reference provisions from other pu
36、blications. These normative references are cited at the appropriate points in the text and the publications are listed hereafter. Subsequent amendments to, or revisions of, any of these publications apply to this European Standard only when incorporated in it by amendment or revision. In the case of
37、 undated references, the most recent edition of the publications referred to applies. EN 10002-1Metallic materials. Tensile testing Part 1 : Method of testing (at ambient temperature) EN 10020Definition and classification of grades of steel EN 10021General technical delivery requirements for steels
38、and steel products EN 10027-1Designation systems for steels Part 1 : Steel names; principal symbols EN 10027-2Designation systems for steels Part 2 : Numerical system EN 10079Definition of steel products EN 10143Continuously hot-dip metal coated steel sheet and strip Tolerances on dimensions and sha
39、pe EN 10204Metallic products Types of inspection documents ECISS IC 10Designation systems for steel Additional symbols for steel names EURONORM 121)Bend test for steel sheet and strip less than 3 mm thick 3 Definitions For the purposes of this European Standard the following definitions apply in add
40、ition to the definitions in EN 10020, EN 10021, EN 10079 and EN 10204 (see clause 2). 3.1 Hot-dip zinc coating is basically the application of zinc coating by immersing the prepared products in molten zinc. In this case, wide strip steel is continuously hot-dip coated; the zinc content of the bath s
41、hall be at least 99 %. 3.2 coating mass Total mass including both surfaces (expressed in grams per square metre). 4 Designation 4.1 The steel names are allocated in accordance with EN 10027-1 and ECISS Information Circular IC 10; the steel numbers are allocated in accordance with EN 10027-2. 4.2 The
42、 products covered by this European Standard shall be designated as follows in the order given: a) type of product (e.g. strip, sheet or cut length); b) number of this standard (EN 10142); c) steel name or steel number and symbol for the type of hot-dip coating as given in table 1; d) number denoting
43、 the nominal mass of coating (e.g. 270 = 270 g/m2including both surfaces, see table 4); e) letter denoting the coating finish (N, M or R, see tables 2 and 3); f) letter denoting the surface quality (A, B or C, see tables 2 and 3). g) letter denoting the surface treatment (C, O, CO or U, see 5.5). Li
44、censed Copy: sheffieldun sheffieldun, na, Thu Oct 26 03:48:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 10142 : 1990 + A1 : 1995 BSI 1996 Table 1. Steel grades and mechanical properties DesignationYield strengthTensile strengthElongation Steel gradeSymbol for the type of hot-dip coating R
45、e1) N/mm2 Rm N/mm2 A80 % Steel nameSteel numbermax.2)max.2)min.3) DX51D1.0226+ Z50022 DX51D1.0226+ ZF DX52D1.0350+ Z3004)42026 DX52D1.0350+ ZF DX53D1.0355+ Z26038030 DX53D1.0355+ ZF DX54D1.0306+ Z22035036 DX54D1.0306+ ZF 1) The yield strength values apply to the 0,2 % proof stress if the yield point
46、 is not pronounced, otherwise to the lower yield strength (ReL). 2) For all steel grades a minimum value of 140 N/mm2for the yield strength (Re) and of 270 N/mm2for the tensile strength (Rm) may be expected. 3) For product thicknesses #0,7 mm (including zinc coating) the minimum elongation values A8
47、0) shall be reduced by 2 units. 4) This value applies to skin passed products only (surface qualities B and C). Examples: Designation of strip made of steel DX52D+Z, coating mass 275 g/m2(275), coating finish normal spangle (N), surface quality A; surface treatment chemical passivation (C): Strip EN
48、 10142-DX52D+Z275-N-A-C orStrip EN 10142-1.0350+Z275-N-A-C Designation of sheet made of steel DX53D+ZF, coating mass 100 g/m2(100), coating finish regular R, surface quality B; surface treatment oiled (O): Sheet EN 10142-DX53D+ZF100-R-B-O orSheet EN 10142-1.0355+ZF100-R-B-O 4.3 Where appropriate, ad
49、ditional information to the designation as specified in 4.2 shall be given to describe clearly the delivery requirements (see clause 12). 5 Classification of grades and types of delivery 5.1 Steel grade Table 1 gives a summary of the steel grades available. It contains the following steel grades listed in order of increasing suitability for cold forming. DX51D+ Z, DX51D+ZF :bending and profiling quality DX52D+Z, DX52D+ZF :drawing quality DX53D+Z, DX53D+ZF :deep drawing quality DX54D+Z, DX54D+ZF :special deep drawing quality 5.2 C