1、BRITISH STANDARD BS EN 10323:2004 Steel wire and products Bead wire The European Standard EN 10323:2004 has the status of a British Standard ICS 77.140.65 BS EN 10323:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 7 September 2004 BSI 7
2、 September 2004 ISBN 0 580 44427 9 National foreword This British Standard is the official English language version of EN 10323:2004. The UK participation in its preparation was entrusted to Technical Committee ISE/26, Steel wire, which has the responsibility to: A list of organizations represented
3、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 by
4、 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 immuni
5、ty from legal obligations. aid enquirers to understand the text; present to the responsible international/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 i
6、n the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 16, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd.
7、No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN10323 September2004 ICS Englishversion SteelwireandwireproductsBeadwire FilsetproduitstrfilsenacierFilpourtringle StahldrahtundDrahterzeugnisseReifeneinlegedraht ThisEuropeanStandardwasapprovedbyCENon1July2004. CENmembersareboundtocom
8、plywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropean
9、Standardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,Cze
10、chRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITE
11、EFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN10323:2004:EEN 10323:2004 (E) 2 Contents Page Foreword3 1 Scope4 2 Normative references4 3 Terms and definitions .4 4 Classification5 5 Des
12、ignation and ordering .5 5.1 Designation5 5.2 Information to be supplied by the purchaser .5 6 Requirements.6 6.1 Material.6 6.2 Mechanical properties.6 6.3 Surface quality.8 6.4 Dimensions and tolerances 9 6.5 Delivery conditions9 7 Testing and inspection10 7.1 Tests and inspection documents.10 7.2
13、 Test procedures.10 7.3 Coating thickness11 7.4 Retests11 8 Marking, labelling and packaging 11 Annex A (informative) Adhesion testing.13 Annex B (informative) Bead wire .14 Bibliography 16 EN 10323:2004 (E) 3 Foreword This document (EN 10323:2004) has been prepared by Technical Committee ECISS/TC 3
14、0 “Steel wire”, the secretariat of which 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 March 2005, and conflicting national standards shall be withdrawn at the latest by March 20
15、05. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia
16、, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 10323:2004 (E) 4 1 Scope This document specifies composition, dimensions and mechanical properties of round and flat wire used for strengthening the bead of al
17、l kinds of tyres. 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 edition of the referenced document (including any amendments) applies. EN 10002
18、-1, Metallic materials Tensile testing Part 1: Method of test at ambient temperature EN 10016-1, Non-alloy steel rod for drawing and/or cold rolling Part 1: General requirements EN 10016-2, Non-alloy steel rod for drawing and/or cold rolling Part 2: Specific requirements for general purposes rod EN
19、10016-4, Non-alloy steel rod for drawing and/or cold rolling Part 4: Specific requirements for rod for special applications EN 10021, General technical delivery requirements for steel and iron products EN 10204, Metallic products Types of inspection documents EN 10218-1, Steel wire and wire products
20、 General Part 1: Test methods EN 10218-2, Steel wire and wire products General Part 2: Wire dimensions and tolerances EN 10244-1, Steel wire and wire products Non-ferrous metallic coatings on steel wire Part 1: General principles CR 10261, ECISS Information circular 11 Iron and steel Review of avail
21、able methods of chemical analysis 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 nominal diameter: d value of the diameter, expressed in millimetres, by which the wire is designated and specified by the purchaser NOTE This is the basis on wh
22、ich the values of all relevant characteristics are determined for the acceptance of the wire 3.2 actual diameter arithmetic mean of two measurements of the diameter at right angles determined at any cross-section 3.3 out of roundness arithmetic difference between the maximum and minimum diameters me
23、asured in a transverse cross-section perpendicular to the wire axis EN 10323:2004 (E) 5 4 Classification Bead wire is classified according to tensile strength. It is supplied in two classes of tensile strength: NT: Normal tensile strength; HT: High tensile strength. 5 Designation and ordering 5.1 De
24、signation For products supplied in accordance with this document, the designation shall state in the following order: the term: bead wire; for flat wire after the term bead wire: flat; the coating: see 6.1.3; the number of this document; for flat wire the dimensions expressed as width x thickness: 3
25、 x 1,5; the tensile strength class (see 4); for round wire the nominal diameter. EXAMPLE Bronze coated bead wire 1,295 mm high tensile strength conforming to EN 10323 shall be designated: Bead wire bronze coated EN 10323 HT 1,295. 5.2 Information to be supplied by the purchaser The purchaser shall c
26、learly state in his enquiry or order the product and following information: for round wire the nominal diameter; the desired quantity; the unit and type of delivery; if cumar residue coating is required (see 6.1.3); if an adhesion test is required and if so what kind of adhesion test (see 6.4.3); th
27、e type of inspection document (see 7.1). EXAMPLE 20t bead wire bronze coated EN 10323 HT 1,295 on spools of ca. 450 kg doc. EN 10204 3.1 B. EN 10323:2004 (E) 6 6 Requirements 6.1 Material 6.1.1 Steel The wire shall be manufactured from steel rod conforming to EN 10016-1 and EN 10016-2 for tensile st
28、rength NT and conforming to EN 10016-4 for tensile strength HT. 6.1.2 Chemical composition The chemical composition according to the heat analysis shall conform to the limit values given in Table 1. The permissible deviation of the product analysis from the heat analysis shall be in accordance with
29、EN 10016-2 and EN 10016-4. Table 1 Chemical composition (% by mass) C Si Mn P S Tensile strength max. max. NT 0,60 to 0,75 0,15 to 0,30 0,40 to 0,70 0,035 0,035 HT 0,65 to 0,85 0,15 to 0,30 0,40 to 0,60 0,020 0,025 Unless otherwise agreed at the time of enquiry and order, the choice of a suitable ph
30、ysical or chemical method of analysis for the determination of the product analysis shall be at the discretion of the supplier. In cases of dispute the analysis shall be carried out by a laboratory approved by the two parties. The method of analysis to be applied shall be agreed upon, if possible, i
31、n accordance with CR 10261. 6.1.3 Metallic coating Round wire shall be supplied with one of the following coatings: brass, bronze 1 or bronze 2. In addition, the purchaser may specify the application of a cumar residue coating (see 5.2). Flat bead wire shall be supplied only as brass coated. The che
32、mical composition of the coating shall be in accordance with Table 2. Table 2 Chemical composition of the coating (% by mass) Coating material Cu Sn Zn Brass 67 to 77 - 23 to 33 Bronze 97 3 - NOTE Bronze 1: Low coating thickness. Bronze 2: Higher coating thickness. 6.2 Mechanical properties 6.2.1 Te
33、nsile strength 6.2.1.1 Tensile test results Indicative tensile strength values are given in Table 3. EN 10323:2004 (E) 7 6.2.1.2 Breaking force and elongation When the wire is tested in accordance with 7.2.1, the minimum breaking force and elongation at rupture shall conform to the values given for
34、the relevant class in Table 3. 6.2.1.3 Yield strength and 0.2 % proof stress (F 0,2 ) When the wire is tested in accordance with 7.2.1, the force at 0,2 % proof stress shall be 80 % of the minimum breaking force specified in Table 3. 6.2.2 Torsion test When the wire is tested in accordance with 7.2.
35、2, the wire shall withstand the minimum number of torsions specified in Table 3 without fracture. EN 10323:2004 (E) 8 Table 3 Mechanical properties aDiameter d Nominal tensile strength Minimum breaking force Elongation at rupture (At) Minimum number of torsions (mm) (MPa b ) (N) (%) min. (Nt) NT 0,8
36、00 2200 1000 5,0 50 0,890 2100 1200 5,0 50 0,965 2000 1350 5,0 50 1,000 2000 1450 5,0 25 1,295 1950 2400 5,0 25 1,420 1950 2880 5,0 22 1,550 2000 3525 5,0 20 1,550 1900 3340 5,0 20 1,600 1900 3560 5,0 20 1,650 1850 3680 5,0 20 1,830 1650 3970 5,0 20 2,000 1650 4805 5,0 20 Flat wire 3 1,50 - 7600 2,0
37、 - HT 0,890 2350 1350 5,0 50 0,965 2250 1525 5,0 50 1,000 2250 1640 5,0 20 1,295 2250 2795 5,0 20 1,550 2200 3900 5,0 20 1,600 2200 4150 5,0 20 1,830 2200 5500 5,0 15 aFor intermediate sizes the nominal tensile strength and the requirements shall be those given for the next higher diameter. b1MPa =
38、1N/mm 2 . 6.3 Surface quality 6.3.1 General The surface of the wire shall be smooth and free from grease and other contaminants. 6.3.2 Coating thickness When tested in accordance with 7.3 the coating thickness shall be in accordance with Table 4. EN 10323:2004 (E) 9 Table 4 Coating thickness Coating
39、 type Thickness ( m) Brass 0,15 0,05 Bronze 1 0,10 0,05 Bronze 2 0,17 0,05 6.4 Dimensions and tolerances 6.4.1 Size tolerances When measured in accordance with 7.2.3 for round wire the tolerance on the diameter shall be as specified in Table 5. Table 5 Tolerance on the wire diameter dimensions in mi
40、llimetres Wire diameter (d) Tolerance d 1,60 0,02 1,60 d 0,03 For flat wire 3 mm 1,5 mm: the width tolerance shall be 0,05 mm; the tolerance on thickness shall be 0,03 mm. 6.4.2 Out of roundness The out of roundness of round wire shall be not more than half the tolerance range specified in Table 5.
41、6.4.3 Adhesion Where an adhesion test is specified by the purchaser (see 5.2) the wire shall be tested using the method agreed between the purchaser and the supplier and shall conform to the adhesion requirements agreed between the purchase and the supplier. NOTE An example of a method for testing a
42、dhesion is given in Annex A. 6.5 Delivery conditions 6.5.1 Unit package The wire shall be supplied in units of one single length. The unit package of wire shall be wound on spools or as spoolless cores of dimensions to be agreed between the purchaser and the supplier. NOTE A list of the recommended
43、types of spool is given in Annex B. EN 10323:2004 (E) 10 6.5.2 Welds Welds at final size are permitted provided they are properly cleaned and smooth so as to permit proper processing. The weld and heat affected zone shall have a breaking force of a minimum of 40 % of the breaking force specified in
44、Table 3. 6.5.3 Wire straightness When tested in accordance with 7.2.4 the wire shall stay between the two lines. 6.5.4 Residual torsions When tested in accordance with 7.2.5 the end of the wire shall not rotate in either direction more than one full revolution around its axis. 7 Testing and inspecti
45、on 7.1 Tests and inspection documents Products conforming to this document shall be delivered with specific testing (see EN 10021) and the relevant inspection document in accordance with EN 10204 specified by the purchaser at the time of enquiry or order. 7.2 Test procedures 7.2.1 Tensile tests Tens
46、ile testing shall be carried out in accordance with EN 10218-1 and EN 10002-1 on samples comprising the full cross-section of the wire. The minimum breaking force, the elongation (At) at the moment of rupture and the force at 0,2 % proof stress F 0,2shall be recorded. The reference length for the el
47、ongation test shall be 200 mm. Other gauge lengths may be agreed between the parties. 7.2.2 Torsion test The test length used shall be as specified in Table 6. The test samples shall be subjected to a thermal ageing treatment at 150 C for 1 h. The torsion test shall be performed in accordance with 1
48、0218-1. EN 10323:2004 (E) 11 Table 6 Test length for torsion test Wire diameter (d) Test length mm d 1,00 200 d 1,00 d 5,00 100 d 7.2.3 Diameter and out of roundness The diameter shall be measured in accordance with EN 10218-2 using a micrometer with a precision of 0,001 mm. 7.2.4 Straightness Place the wire sample on a smooth surface on which two parallel lines 3 m long and 600 mm apart are marked. Check if the wire sample stays between the two lines. 7.2.5 Residual torsions Bend t
