1、BS EN10244-1:2009ICS 25.220.40; 77.140.65NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDSteel wire and wireproducts Non-ferrous metalliccoatings on steel wirePart 1: General principlesIncorporating corrigendum June 2011This British Standard was published under
2、the authority of the Standards Policy and Strategy Committee on 31 May 2009. BSI 2011ISBN 978 0 580 75994 9Amendments/corrigenda issued since publicationDate CommentsBS EN 10244-1:2009National forewordThis British Standard is the UK implementation of EN 10244-1:2009, incorporating corrigendum June 2
3、011. It supersedes BS EN 10244-1:2001 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee ISE/26, Steel wire.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all
4、the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Implementation of CEN corrigendum June 2011:modification to equation 631 July 2011 33331 July 2011EUROPEAN STANDARDNORME EUROPENN
5、EEUROPISCHE NORMEN 10244-1April 2009ICS 25.220.40; 77.140.65 Incorporating corrigendum June 2011 English VersionSteel wire and wire products - Non-ferrous metallic coatings onsteel wire - Part 1: General principlesFils et produits trfils en acier - Revtements mtalliquesnon ferreux sur fils dacier -
6、Partie 1 : Principes gnrauxStahldraht und Drahterzeugnisse - berzge ausNichteisenmetall auf Stahldraht - Teil 1: Allgemeine RegelnThis European Standard was approved by CEN on 13 December 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions fo
7、r giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official
8、versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgiu
9、m, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STAN
10、DARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10244-1:2009: ESupersedes EN 10244-1:2001 2 Contents Pag
11、e Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Requirements relating to coating .4 4.1 Requirements for the specific type of metal and alloy 4 4.2 Coating mass .4 4.3 Appearance of coating 5 4.4 Special finishes 5 4.5 Adherence of coating 5 5 Test conditions 5 5.1 Selec
12、tion of samples .5 5.2 Determination of mass of coating 6 5.2.1 Gravimetric method .6 5.2.2 Other methods .7 5.3 Adherence test .7 5.4 Retests 8 BS EN 10244-1:2009EN 10244-1:2009 (E)3 Foreword This document (EN 10244-1:2009) has been prepared by Technical Committee ECISS/TC 30 “Steel wires”, the sec
13、retariat 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 October 2009, and conflicting national standards shall be withdrawn at the latest by October 2009. Attention is
14、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. This document supersedes EN 10244-1:2001. This European Standard for non-ferrous metallic coating o
15、n steel wire is made up of the following parts: Part 1: General principles Part 2: Zinc or zinc alloy coatings Part 3: Aluminium coatings Part 4: Tin coatings Part 5: Nickel coatings Part 6: Copper, bronze or brass coatings According to the CEN/CENELEC Internal Regulations, the national standards or
16、ganizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
17、 Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 10244-1:2009EN 10244-1:2009 (E)4 1 Scope This part of this European Standard specifies the requirements for the mass, other properties and testing of non-ferrous metal coatings on steel wire and steel wire product
18、s of circular or other cross-section. This European Standard deals with requirements of general application and is of use for those coatings for which no particular requirements have been laid down in (EN 10244-2 to EN 10244-6). Deviations are possible, particularly if required for well-defined prod
19、ucts. In such cases, appropriate requirements should be part of the relevant product standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest ed
20、ition of the referenced document (including any amendments) applies. EN 10021, General technical delivery conditions for steel products EN 10218-1, Steel wire and wire products General Part 1: Test methods 3 Terms and definitions For the purposes of this document, the following terms and definitions
21、 apply. 3.1 wire with non-ferrous metallic coating wire to which a non-ferrous metallic coating has been applied. NOTE Depending on the metal, the coating may be obtained by dipping in a bath of molten metal, by conversion using a bath of metallic salts in solution, by extrusion, by cladding, by ele
22、ctroplating using an electrolytic solution or by other methods. 4 Requirements relating to coating 4.1 Requirements for the specific type of metal and alloy The type, quality and grade of coating metal or alloy shall be stated at the time of enquiry and order. 4.2 Coating mass The coating mass shall
23、 be explicitly specified, preferably by reference to the appropriate product standard. If not the appropriate part of this European Standard shall apply. The mass of the coating shall preferably be expressed as being the mass of coating per unit of surface area of bare wire (g/m2). Other expressions
24、 may be accepted, such as the quantity of coating per unit of weight of coated wire or the thickness of coating. The latter is generally expressed as being the minimum required thickness. NOTE The thickness of the coating may be converted into an equivalent mass per unit of bare wire surface or vice
25、 versa on the basis of the specific mass of the coating material (see Table 1). A coating of 1 m thickness corresponds to a total additional diameter of 2 m for the overall diameter of the coated wire. BS EN 10244-1:2009EN 10244-1:2009 (E)5 Table 1 Coating mass g/m2equivalent to a thickness of 1 m M
26、etal or alloyaMass of coating (g/m2) Al 2,69Cu 8,96Cu-Sn 91-09 8,56 Cu-Zn 63-37 8,47 Ni 8,85Sn 7,28Zn Zn95/Al5 7,14 6,58 a Percentage compositions expressed in % by weight (Cu-Zn 63-37 = Cu 63%, Zn 37%) 4.3 Appearance of coating The coating shall be reasonably smooth, as evenly distributed as indust
27、rially practicable and not show discontinuities such as bare patches, dross contamination, etc. 4.4 Special finishes If the purchaser requires a special finish e.g. wax-coating or additional requirements for the coating, these special details shall be agreed at the time of enquiry and order. The ins
28、pection methods shall be defined at the same time. 4.5 Adherence of coating The adherence wrapping test shall be carried out in accordance with EN 10218-1 and the coating shall adhere to the steel below the coating. It shall not crack or split to such an extent that slivers of coating can be removed
29、 by simply rubbing with the fingers. The flaking or removal during testing of small particles resulting from mechanical polishing of the coating surface or by contact with the forming equipment shall not be considered to be a cause for rejection. The wrapping test shall be carried out on wire with a
30、 nominal diameter of 7,5 mm or less. Unless otherwise specified, the relationship between the diameter of the coiling mandrel and the diameter of the wire shall be in accordance with 5.3. In the case of a diameter greater than 7,5 mm, the wrapping test shall be replaced by a bending test in which th
31、e wire is bent to least 90 around the mandrel. 5 Test conditions 5.1 Selection of samples 5.1.1 The number and the basis for the selection of test pieces shall be defined in the product specification. In the absence of such a definition, the manufacturer and purchaser shall agree between them on the
32、 degree of sampling. 5.1.2 When taking the samples, care shall be taken to avoid damaging the surface. Parts of the wire which are visibly damaged shall not be used. BS EN 10244-1:2009EN 10244-1:2009 (E)6 5.1.3 A test piece of a suitable length for the specified tests shall be taken from one or both
33、 ends of each coil selected for sampling. 5.2 Determination of mass of coating 5.2.1 Gravimetric method 5.2.1.1 General The mass of coating shall be determined using a gravimetric method. The metallic coating on a surface of known area is dissolved in a suitable solution to remove the coating comple
34、tely without attacking the surface of the steel wire. If necessary a suitable inhibitor is added to the solution. The resulting mass loss is determined by weighing the test piece before and after the coating has dissolved. 5.2.1.2 Procedure If necessary the test piece shall be degreased using an org
35、anic solvent which does not attack the coating and the test piece shall then be dried. Before stripping, the test piece shall be weighed with high accuracy i.e. better than 1 % of the assumed mass of the coating. The test piece shall be immersed fully in the stripping solution at ambient temperature
36、 and left until the coating dissolves completely. A sufficient quantity of solution shall be used to limit any changes in the composition of the stripping solution. After stripping, the test piece shall be rinsed under running water and, if necessary, brushed to remove any loose substances which may
37、 be adhering to the surface; it shall then be plunged into alcohol or any other appropriate solvent, rapidly dried and once again weighed to the accuracy stipulated above. The surface area of the exposed surface shall then be determined to an accuracy of 1 % by measuring the dimensions of the test p
38、iece. 5.2.1.3 Calculation of the coating mass For the calculation of the coating mass the following symbols are employed: m1: The mass of the sample before chemical stripping expressed in grams; m2: The mass of the sample after chemical stripping expressed in grams; A: The coated surface of the samp
39、le in mm2; l: The length of the sample in mm; d: The diameter of the chemically stripped wire (in case of round wire) in mm; m: Weight loss of the sample by the chemical stripping; mA: The mass of coating in g/m2.The mass of coating on the samples is: m = m1-m2 (in g) The mass of coating per unit su
40、rface area = 2g/mmAmBS EN 10244-1:2009EN 10244-1:2009 (E)7 expressed in g/m2- this becomes: 26Ag/m10Amm= (1) For round wire the surface area can be expressed as: A = d l (2) 322108574= ,ldm = ( d l) d 1,962 10-3(3) Combining (2) and (3) results in: g10962132= ,dAm (4) or 32109621=d,mA (5) Combining
41、(1) and (5) results 326A10962,110=d/mmm 96211032,dmm= (6) 5.2.2 Other methods Depending on the type of coating, other methods may be used to obtain the mass of the coating more simply and more quickly. The use of these methods is authorized under the following conditions: proof of the validity of th
42、e method shall be supplied and in the event of any dispute, only the gravimetric method shall apply. 5.3 Adherence test If the wire diameter is less than or equal to 7,5 mm, the adherence of the coating shall be tested by wrapping the wire for at least six tight turns around a cylindrical mandrel. W
43、ires of diameter greater than 7,5 mm shall undergo a bending test at an angle of at least 90 around the mandrel. Unless otherwise specified in the subsequent parts of this standard or in the product standard the relationship between the diameter of the mandrel and the diameter of the wire shall be i
44、n accordance with Table 2. Table 2 Diameter of mandrel for wrapping test Diameter of wire d Diameter of mandrel 4 mm 4d 4 mm 5d 9621221= dmmmin g/m2BS EN 10244-1:2009EN 10244-1:2009 (E)8 5.4 Retests Testing and retesting shall be in accordance with EN 10021. BS EN 10244-1:2009EN 10244-1:2009 (E)This
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