BS EN 10218-2-2012 Steel wire and wire products General Wire dimensions and tolerances《钢丝和丝材制品 导则 丝材尺寸和公差》.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 10218-2:2012Steel wire and wire products GeneralPart 2: Wire dimensions and tolerancesBS EN 10218-2:2012 BRITISH STANDARDNational forewordThis British Standard is the UK im

2、plementation of EN 10218-2:2012.It supersedes BS EN 10218-2:1997 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ISE/106, Wire Rod and Wire.A list of organizations represented on this committee can beobtained on request to its secretary.This publication

3、 does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012ISBN 978 0 580 62762 0ICS 77.140.65Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was

4、 published under the authority of theStandards Policy and Strategy Committee on 31 January 2012.Amendments issued since publicationDate Text affectedBS EN 10218-2:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10218-2 January 2012 ICS 77.140.65 Supersedes EN 10218-2:1996English Version Ste

5、el wire and wire products - General - Part 2: Wire dimensions and tolerances Fils et produits trfils en acier - Gnralits - Partie 2 : Dimensions et tolrances des fils Stahldraht und Drahterzeugnisse - Allgemeines - Teil 2: Drahtmae und Toleranzen This European Standard was approved by CEN on 3 Septe

6、mber 2011. 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 concerning such national standards may be ob

7、tained 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 responsibility of a CEN member into its own language and notified to the

8、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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembour

9、g, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All

10、rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10218-2:2012: EBS EN 10218-2:2012EN 10218-2:2012 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .44 Wire diameter tolerance 54.1 Tolerance on diameter

11、of uncoated and metallic coated round steel wire .54.1.1 General 54.1.2 Out of roundness (ovality) 64.2 Tolerances on diameter of organic coated wire .74.2.1 General 74.2.2 Extruded organic coating .74.2.3 Sintered organic coating .75 Tolerance on cut lengths 85.1 Tolerance on length .85.2 Tolerance

12、 and straightness 96 Length of wire in coil .9BS EN 10218-2:2012EN 10218-2:2012 (E) 3 Foreword This document (EN 10218-2:2012) has been prepared by Technical Committee ECISS/TC 106 “Wire rod and wires”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a

13、national standard, either by publication of an identical text or by endorsement, at the latest by July 2012, and conflicting national standards shall be withdrawn at the latest by July 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

14、 rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 10218-2:1996. The standard will comprise the following parts: Part 1: Test methods; Part 2: Wire dimensions and tolerances. According to the CEN/CENELEC Internal Regul

15、ations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Mal

16、ta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 10218-2:2012EN 10218-2:2012 (E) 4 1 Scope This European Standard specifies the tolerances on diameter of round wire and, where applicable, on the length of round w

17、ire cut to length, for bright steel wire, (i.e. uncoated), metallic coated steel wire and non-metallic coated steel wire. This European Standard should not be applied where other requirements for dimensions and tolerances are specified in a particular product standard. 2 Normative references The fol

18、lowing referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 10079:2007, Definition of steel products 3 Terms and

19、definitions For the purposes of this document, the following terms and definitions apply. 3.1 wire product of constant full cross section along its length, obtained by cold drawing rod through a reducing die or passing under pressure between rollers and rewinding the drawn product NOTE 1 The cross s

20、ection is generally round, though sometimes oval, rectangular, square, hexagonal, octagonal or other convex section. NOTE 2 The manufacturing processes give close control of geometric (size, surface condition) and mechanical properties. Wire may be supplied uncoated (as drawn, annealed) or coated (e

21、.g. with zinc, copper, nickel or plastic materials). NOTE 3 Heat treatments and/or surface treatments may be carried out during the course of manufacture to improve the properties of wire. EN 10079:2007 NOTE 4 As well as being supplied in the uncoated (bright) condition, wire can also be supplied wi

22、th metallic or non-metallic coatings or both.The metallic coating can be as a finished coating or as a drawn finished coating. 3.2 cut length straightened piece of wire cut to a specified length BS EN 10218-2:2012EN 10218-2:2012 (E) 5 4 Wire diameter tolerance 4.1 Tolerance on diameter of uncoated a

23、nd metallic coated round steel wire 4.1.1 General Key 1 metallic coating thickness in mm d overall diameter in mm (including, where existing, the metallic coating) Figure 1 For Table 1 Diameter measurements shall be made at any cross-section and shall not differ from the tolerances specified in the

24、relevant tables in this standard. NOTE 1 Diameter tolerances may vary when cut lengths are supplied by a third party. NOTE 2 Diameter tolerances are calculated as follows: T1 = 0,035 d T2 = 0,027 d T3 = 0,021 d T4 = 0,015 d T5 = 0,010 d where d is the overall diameter measured in mm (including, wher

25、e existing, the metallic coating) The purchaser or the product standard shall indicate the tolerance range required from Table 1. The overall diameter shall be within the relevant tolerance range given in Table 1; the producer will adapt processing parameters to ensure compliance with the required p

26、roperties of the wire in the respective product standard, taking into account the influence of the coating thickness (if applicable). NOTE 3 Unless otherwise specified on the order/enquiry or the product standard, tolerances class T1 would generally be used for heavy galvanised (A) wire, T2 would ge

27、nerally be used for other galvanised wire, and T3, T4 and T5 would generally be used for bright drawn wire in increasing order of precision required. BS EN 10218-2:2012EN 10218-2:2012 (E) 6 4.1.2 Out of roundness (ovality) The out of roundness is the difference between maximum and minimum diameter o

28、f the wire at any cross-section and shall not be more than one half of the total tolerance given in Table 1. For diameters d from 0,050 mm to 25,00 mm, the tolerances on diameter shall be as follows: Table 1 Diameter tolerances Dimensions in millimetres Diameter tolerance Wire diameter range mm d T1

29、 T2 T3 T4 T5 0,003 0,050 d 1 000 0,10 % BS EN 10218-2:2012EN 10218-2:2012 (E) 9 5.2 Tolerance and straightness There are three classes of straightness of cut lengths given in Table 4 for wire diameters specified in Table 5. The purchaser shall select the appropriate class required. Figure 3 illustra

30、tes the measurement of out of straightness. Table 4 Tolerance of straightness of cut lengths Class L a= 500 mm L a= 1 000 mm Rolling test 1 a = 0,5 mm a = 2 mm will roll down an incline of 1 in 10 2 a = 1,0 mm a = 4 mm 3 No requirementaTest length. For classes 1 and 2, the cut lengths shall also mee

31、t the requirements of the rolling test which is performed on a smooth glass incline. Cut lengths are placed on the incline to allow free rolling. Table 5 Straightness test lengths Wire diameter d mm Test length L mm 2,00 d 6,00 500 6,00 d 13,00 500 or 1 000 NOTE Wire of less than 2,00 mm diameter ha

32、s insufficient rigidity in length making the measurement a difficult. The test should be agreed between purchaser and supplier. Key a Out of straightness in mm. This is measured at the mid point of the test sample length and a is the distance from the inside of the wire to the straight edge. L Lengt

33、h in mm Figure 3 Measurement of out of straightness 6 Length of wire in coil With a wire of known size and density, the length of the coil can be computed having weighed the mass of the coil. This page deliberately left blankThis page deliberately left blankBSI is the independent national body respo

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