1、Non-alloy steel wire rod for conversion to wirePart 4: Specific requirements for wire rod for special applications (ISO 16120-4:2017)BS EN ISO 16120-4:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06EUROPEANSTANDARDNORME EUROPENNE EUROPISCHE NORMEN ISO 16120-4 Ju
2、ne 2017ICS 77.140.60 Supersedes EN ISO 16120-4:2011EnglishVersionNon-alloy steel wire rod for conversion to wire - Part 4: Specific requirements for wire rod for special applications(ISO 16120-4:2017)Fil-machine en aciernonalli destin la fabricationde fils - Partie 4: Exigencesspcifiques aufil-machi
3、ne pour applications spciales(ISO 16120-4:2017)Walzdraht aus unlegiertem Stahl zum Ziehen - Teil 4: Besondere AnforderungenanWalzdraht frSonderanwendungen (ISO16120-4:2017)This European Standard was approved by CEN on 20 April 2017.CEN members are bound to comply with the CEN/CENELEC Internal Regula
4、tions which stipulate the conditions for giving thisEuropean Standard the status of a national standard without any alteration.Up-to-date lists and bibliographical referencesconcerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. T
5、his European Standard exists in three official versions (English, French, German). A version in any other language made bytranslation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC ManagementCentre has the same status as the officialversions.CEN member
6、s are the nationalstandards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
7、 Romania, Serbia,Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any for
8、m and by any means reservedworldwide for CENnational Members.Ref. No. EN ISO 16120-4:2017 ENational forewordThis British Standard is the UK implementation of EN ISO 16120-4:2017. It is identical to ISO 16120-4:2017. It supersedes BS EN ISO 16120-4:2011, which is withdrawn.The UK participation in its
9、 preparation was entrusted to Technical Committee ISE/106, Wire Rod and 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 the necessary provisions of a contract. Users are responsible for its correc
10、t application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 83835 4ICS 77.140.60Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strate
11、gy Committee on 31 August 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 16120-4:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 16120-4 June 2017 ICS 77.140.60 Supersedes EN ISO 16120-4:2011English Version Non-alloy steel wire rod for con
12、version to wire - Part 4: Specific requirements for wire rod for special applications (ISO 16120-4:2017) Fil-machine en acier non alli destin la fabrication de fils - Partie 4: Exigences spcifiques au fil-machine pour applications spciales (ISO 16120-4:2017) Walzdraht aus unlegiertem Stahl zum Ziehe
13、n - Teil 4: Besondere Anforderungen an Walzdraht fr Sonderanwendungen (ISO 16120-4:2017) This European Standard was approved by CEN on 20 April 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status
14、of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, Germa
15、n). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia,
16、 Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey a
17、nd United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref.
18、No. EN ISO 16120-4:2017 EBS EN ISO 16120-4:2017EN ISO 16120-4:2017 (E) 3 European foreword This document (EN ISO 16120-4:2017) has been prepared by Technical Committee ISO/TC 17 “Steel“ in collaboration with Technical Committee ECISS/TC 106 “Wire rod and wires” the secretariat of which is held by AF
19、NOR. 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 December 2017, and conflicting national standards shall be withdrawn at the latest by December 2017. Attention is drawn to the possibility that
20、 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 ISO 16120-4:2011. According to the CEN-CENELEC Internal Regulations, the national standards organiza
21、tions of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Mal
22、ta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 16120-4:2017 has been approved by CEN as EN ISO 16120-4:2017 without any modification. ISO 16120-4:2017(E)Foreword iv1 Scope .
23、 12 Normative references 13 Terms and definitions . 14 Designation 15 Requirements 25.1 General . 25.2 Chemical composition and mechanical properties . 25.3 Internal soundness and surface quality 55.4 Depth of surface discontinuities 55.5 Depth of decarburization . 55.5.1 General 55.5.2 Complete dec
24、arburization . 55.5.3 Partial decarburization 65.6 Non-metallic inclusions . 65.7 Core segregation 65.8 Tensile strength 65.9 Scale characteristics . 75.10 Mechanical damage . 75.11 Microstructure 75.11.1 Resolvable pearlite . 75.11.2 Cementite network 8Annex A (informative) Steel designations and d
25、esignation of comparable steel grades . 9Bibliography .11 ISO 2017 All rights reserved iiiContents PageBS EN ISO 16120-4:2017ISO 16120-4:2017(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Designation 15 Requirements 25.1 General . 25.2 Chemical composition and mechanic
26、al properties . 25.3 Internal soundness and surface quality 55.4 Depth of surface discontinuities 55.5 Depth of decarburization . 55.5.1 General 55.5.2 Complete decarburization . 55.5.3 Partial decarburization 65.6 Non-metallic inclusions . 65.7 Core segregation 65.8 Tensile strength 65.9 Scale char
27、acteristics . 75.10 Mechanical damage . 75.11 Microstructure 75.11.1 Resolvable pearlite . 75.11.2 Cementite network 8Annex A (informative) Steel designations and designation of comparable steel grades . 9Bibliography .11 ISO 2017 All rights reserved iiiContents PageBS EN ISO 16120-4:2017ISO 16120-4
28、:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for wh
29、ich a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all
30、matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This
31、 document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any o
32、r all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ patents).Any trade name used in this document is information given for the convenience of us
33、ers and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barrie
34、rs to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 17, Steel wire rod and wire products.This third edition cancels and replaces the second edition (ISO 16120-4:2011), which has been technical
35、ly revised.The main changes compared to the previous edition are: Terms and definitions clause added; revisions to the permissible variation for ultimate tensile strength of the wire rod (Table 6 and Table 7); cementite network requirement added (5.11.2).This document is intended to be used in conju
36、nction with ISO 16120-1. A list of all parts in the ISO 16120 series can be found on the ISO website.iv ISO 2017 All rights reservedBS EN ISO 16120-4:2017ISO 16120-4:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO me
37、mber bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governme
38、ntal and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance
39、 are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attentio
40、n is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction an
41、d/or on the ISO list of patent declarations received (see www .iso .org/ patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms a
42、nd expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared by Technical Committee ISO/TC 17
43、, Steel, Subcommittee SC 17, Steel wire rod and wire products.This third edition cancels and replaces the second edition (ISO 16120-4:2011), which has been technically revised.The main changes compared to the previous edition are: Terms and definitions clause added; revisions to the permissible vari
44、ation for ultimate tensile strength of the wire rod (Table 6 and Table 7); cementite network requirement added (5.11.2).This document is intended to be used in conjunction with ISO 16120-1. A list of all parts in the ISO 16120 series can be found on the ISO website.iv ISO 2017 All rights reserved IN
45、TERNATIONAL STANDARD ISO 16120-4:2017(E)Non-alloy steel wire rod for conversion to wire Part 4: Specific requirements for wire rod for special applications1 ScopeThis document specifies requirements for wire rod for conversion to wire for special applications. It is applicable to non-alloy steel wir
46、e rod with improved characteristics intended for drawing and/or cold rolling.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For
47、undated references, the latest edition of the referenced document (including any amendments) applies.ISO 4948-2, Steels Classification Part 2: Classification of unalloyed and alloy steels according to main quality classes and main property or application characteristicsISO 4967, Steel Determination
48、of content of non-metallic inclusions Micrographic method using standard diagramsISO 16120-1:2017, Non-alloy steel wire rod for conversion to wire Part 1: General requirementsISO 16120-2:2017, Non-alloy steel wire rod for conversion to wire Part 2: Specific requirements for general purpose wire rod3
49、 Terms and definitionsNo terms and definitions are listed in this document.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at h t t p :/ www .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp4 DesignationIn the designation C#D2, “C” means non-alloy steel (see ISO/TS 4949); # is the indicative average content of carbon; “D” signifies that it is for wire-drawing; “2” means wire rod for special applic
