EN ISO 683-2-2018 en Heat-treatable steels alloy steels and free-cutting steels - Part 2 Alloy steels for quenching and tempering.pdf

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1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Heat-treatable steels, alloy steels and free-cutting steelsPart 2: Alloy steels for quenching and temperingBS EN ISO 6832:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 683-2 June 2018 ICS 77.140.10; 77.14

2、0.20; 77.140.45 Supersedes EN 10083-1:2006, EN 10083-3:2006English Version Heat-treatable steels, alloy steels and free-cutting steels - Part 2: Alloy steels for quenching and tempering (ISO 683-2:2016) Aciers pour traitement thermique, aciers allis et aciers pour dcolletage - Partie 2: Aciers allis

3、 pour trempe et revenu (ISO 683-2:2016) Fr eine Wrmebehandlung bestimmte Sthle, legierte Sthle und Automatensthle - Teil 2: Legierte Vergtungssthle (ISO 683-2:2016) This European Standard was approved by CEN on 18 May 2018. CEN members are bound to comply with the CEN/CENELEC Internal Regulations wh

4、ich 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 obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This E

5、uropean 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 CEN-CENELEC Management Centre has the same status as the official versions. CEN members

6、 are the national standards 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 STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation i

8、n any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 683-2:2018 ENational forewordThis British Standard is the UK implementation of EN ISO 6832:2018. It is identical to ISO 6832:2016. It supersedes BS EN 100833:2006, which is withdrawn. Together with BS EN ISO 683

9、1:2018, it supersedes BS EN 100831:2006, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee ISE/105, Steels for Heat Treatment, Alloy Steels, FreeCutting Steels and Stainless Steels.A list of organizations represented on this committee can be obtained on

10、request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 96845 7ICS 77.140.45; 77.140.20; 77.140.10

11、Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 6832:2018

12、EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 683-2 June 2018 ICS 77.140.10; 77.140.20; 77.140.45 Supersedes EN 10083-1:2006, EN 10083-3:2006English Version Heat-treatable steels, alloy steels and free-cutting steels - Part 2: Alloy steels for quenching and tempering (ISO 683-2:2016) Acie

13、rs pour traitement thermique, aciers allis et aciers pour dcolletage - Partie 2: Aciers allis pour trempe et revenu (ISO 683-2:2016) Fr eine Wrmebehandlung bestimmte Sthle, legierte Sthle und Automatensthle - Teil 2: Legierte Vergtungssthle (ISO 683-2:2016) This European Standard was approved by CEN

14、 on 18 May 2018. 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

15、 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, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified t

16、o 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland,

17、 Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC M

18、anagement Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 683-2:2018 EBS EN ISO 6832:2018BS EN ISO 6832:2018EN ISO 683-2:2018 (E) 3 European foreword The text of ISO 683-2:2016

19、 has been prepared by Technical Committee ISO/TC 17 “Steel” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 683-2:2018 by Technical Committee ECISS/TC 105 “Steels for heat treatment, alloy steels, free-cutting steels and stainless steels” the secretariat

20、 of which is held by DIN. 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 2018, and conflicting national standards shall be withdrawn at the latest by December 2018. Attention is drawn to

21、 the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 10083-1:2006, EN 10083-3:2006. According to the CEN-CENELEC Internal Regulations, the national

22、 standards organizations 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, Lithuan

23、ia, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 683-2:2016 has been approved by CEN as EN ISO 683-2:2018 without any modification. BS EN ISO 6832:2018EN IS

24、O 683-2:2018 (E) 4 The European steel numbers to the steel grades are to be found in informative Annex C. The references to following European standards are given for information: EN 10017, Steel rod for drawing and/or cold rolling - Dimensions and tolerances EN 10021, General technical delivery con

25、ditions for steel products EN 10029, Hot-rolled steel plates 3 mm thick or above - Tolerances on dimensions and shape EN 10048, Hot rolled narrow steel strip - Tolerances on dimensions and shape EN 10051, Continuously hot-rolled strip and plate/sheet cut from wide strip of non-alloy and alloy steels

26、 - Tolerances on dimensions and shape EN 10058, Hot rolled flat steel bars for general purposes - Dimensions and tolerances on shape and dimensions EN 10059, Hot rolled square steel bars for general purposes - Dimensions and tolerances on shape and dimensions EN 10060, Hot rolled round steel bars fo

27、r general purposes - Dimensions and tolerances on shape and dimensions EN 10061, Hot rolled hexagon steel bars for general purposes - Dimensions and tolerances on shape and dimensions EN 10108, Round steel rod for cold heading and cold extrusion - Dimensions and tolerances EN 10160, Ultrasonic testi

28、ng of steel flat product of thickness equal or greater than 6 mm (reflection method) EN 10204, Metallic products - Types of inspection documents EN 10308, Non destructive testing - Ultrasonic testing of steel bars BS EN ISO 6832:2018ISO 683-2:2016(E)Foreword v1 Scope . 12 Normative references 13 Ter

29、ms and definitions . 24 Classification and designation . 34.1 Classification . 34.2 Designation 35 Information to be supplied by the purchaser. 35.1 Mandatory information . 35.2 Options and/or supplementary or special requirements 35.3 Ordering example . 46 Manufacturing process 46.1 General . 46.2

30、Deoxidation 46.3 Heat-treatment condition and surface condition at delivery . 46.3.1 Heat-treatment condition 46.3.2 Particular surface conditions 46.4 Traceability of the cast . 47 Requirements 57.1 Chemical composition, mechanical properties and hardenability . 57.1.1 General 57.1.2 Chemical compo

31、sition . 57.1.3 Mechanical properties 57.1.4 Hardenability 57.1.5 Surface hardness 57.2 Machinability 57.3 Cold shearability 57.4 Grain size 67.5 Non-metallic inclusions . 67.5.1 Microscopic inclusions . 67.5.2 Macroscopic inclusions 67.6 Internal soundness 67.7 Surface quality . 67.8 Decarburizatio

32、n . 77.9 Shape, dimensions and tolerances . 78 Inspection 78.1 Testing procedures and types of documents 78.2 Frequency of testing . 78.3 Specific inspection and testing 88.3.1 Verification of the hardenability, hardness and mechanical properties 88.3.2 Visual and dimensional inspection 89 Test meth

33、ods . 89.1 Chemical analysis 89.2 Mechanical tests . 89.2.1 Tensile test 89.2.2 Impact test . 89.3 Hardness and hardenability tests . 89.3.1 Hardness in treatment conditions +A and +S . 89.3.2 Verification of hardenability 99.3.3 Surface hardness 99.4 Retests 9 ISO 2016 All rights reserved iiiConten

34、ts PageBS EN ISO 6832:2018ISO 683-2:2016(E)10 Marking 9Annex A (normative) Ruling sections for mechanical properties .31Annex B (normative) Supplementary or special requirements 35Annex C (informative) Designation of steels given in this part of ISO 683 and of comparable grades covered in various de

35、signation systems37Annex D (informative) Dimensional standards applicable to products complying with this part of ISO 683 .39Bibliography .40iv ISO 2016 All rights reservedBS EN ISO 6832:2018ISO 683-2:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation o

36、f 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 which a technical committee has been established has the right to be represented on that committee. In

37、ternational 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 matters of electrotechnical standardization.The procedures used to develop this document and those i

38、ntended 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 document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see

39、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 or all such patent rights. Details of any patent rights identified during the development of the documen

40、t 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 users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and exp

41、ressions 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.The committee responsible for this document is ISO/TC 17, Steel, Subco

42、mmittee SC 4, Heat treatable and alloy steels.This second edition cancels and replaces the first edition (ISO 683-2:2012), of which it constitutes a minor revision.ISO 683 consists of the following parts, under the general title Heat-treatable steels, alloy steels and free-cutting steels: Part 1: No

43、n-alloy steels for quenching and tempering Part 2: Alloy steels for quenching and tempering Part 3: Case-hardening steels Part 4: Free-cutting steels Part 5: Nitriding steels Part 14: Hot-rolled steels for quenched and tempered springs Part 15: Valve steels for internal combustion engines Part 17: B

44、all and roller bearing steels Part 18: Bright steel products ISO 2016 All rights reserved vBS EN ISO 6832:2018BS EN ISO 6832:2018Heat-treatable steels, alloy steels and free-cutting steels Part 2: Alloy steels for quenching and tempering1 ScopeThis part of ISO 683 specifies the technical delivery re

45、quirements for semi-finished products, hot formed, e.g. blooms, billets, slabs (see Note 1), bars (see Note 1), wire rod, finished flat products, and hammer or drop forgings (see Note 1)manufactured from the direct hardening alloy steels and the alloy flame- and induction-hardening steels listed in

46、Table 3 and supplied in one of the heat-treatment conditions given for the different types of products in Table 1 and in one of the surface conditions given in Table 2.The steels are, in general, intended for the manufacture of quenched and tempered or austempered (see 3.2 and Note 2) and flame- or

47、induction-hardened machine parts (see Tables 8 and 9).The requirements for mechanical properties given in this part of ISO 683 are restricted to the sizes given in the relevant Table 8.NOTE 1 Hammer-forged semi-finished products (blooms, billets, slabs, etc.), seamless rolled rings and hammer-forged

48、 bars are in the following covered under semi-finished products or bars and not under the term “hammer and drop forgings”.NOTE 2 For the purposes of simplification, the term “quenched and tempered” is, unless otherwise indicated, used in the following also for the austempered condition.NOTE 3 For In

49、ternational Standards relating to steels complying with the requirements for the chemical composition in Table 3, however, supplied in other product forms or treatment conditions than given above or intended for special applications, and for other related International Standards, see the Bibliography.NOTE 4 This part of ISO 683 does not apply to bright products and bars and wire rod for cold heading. For such products, see ISO 683-18 and ISO 4954.In special cases, variations in these technical delivery requirement