1、 ISO 2016 Heat-treatable steels, alloy steels and free-cutting steels Part 1: Non-alloy steels for quenching and tempering Aciers pour traitement thermique, aciers allis et aciers pour dcolletage Partie 1: Aciers non allis pour trempe et revenu INTERNATIONAL STANDARD ISO 683-1 Third edition 2016-07-
2、01 Reference number ISO 683-1:2016(E) ISO 683-1:2016(E)ii ISO 2016 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, ele
3、ctronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Ve
4、rnier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org ISO 683-1:2016(E)Foreword v 1 Scope . 1 2 Normative references 2 3 T erms and definitions . 3 4 Classification and designation . 3 4.1 Classification . 3 4.2 Designation 3 5 Information to be supplied
5、by the purchaser. 3 5.1 Mandatory information . 3 5.2 Options and/or supplementary or special requirements 4 5.3 Ordering example . 4 6 Manufacturing process 4 6.1 General . 4 6.2 Deoxidation 5 6.3 Heat-treatment condition and surface condition at delivery . 5 6.3.1 Normal condition at delivery 5 6.
6、3.2 Particular heat-treatment condition . 5 6.3.3 Particular surface conditions 5 6.4 Traceability of the cast . 5 7 Requirements 5 7.1 Chemical composition, mechanical properties and hardenability . 5 7.1.1 General 5 7.1.2 Chemical composition . 5 7.1.3 Mechanical properties 5 7.1.4 Hardenability 6
7、 7.1.5 Surface hardness 6 7.2 Machinability 6 7.3 Cold shearability 6 7.4 Grain size 6 7.5 Non-metallic inclusions . 7 7.5.1 Microscopic inclusions . 7 7.5.2 Macroscopic inclusions 7 7.6 Internal soundness 7 7.7 Surface quality . 7 7.8 Decarburization . 7 7.9 Shape, dimensions and tolerances . 8 8 I
8、nspection 8 8.1 Testing procedures and types of documents 8 8.2 Frequency of testing . 8 8.3 Specific inspection and testing 8 8.3.1 Verification of the hardenability, hardness and mechanical properties 8 8.3.2 Visual and dimensional inspection 9 9 Test methods . 9 9.1 Chemical analysis 9 9.2 Mechan
9、ical tests . 9 9.2.1 Tensile test 9 9.2.2 Impact test . 9 9.3 Hardness and hardenability tests . 9 9.3.1 Hardness in treatment conditions +A and +S . 9 9.3.2 Verification of hardenability 9 9.3.3 Surface hardness 9 ISO 2016 All rights reserved iii Contents Page ISO 683-1:2016(E)9.4 Retests .10 10 Ma
10、rking .10 Annex A (normative) Ruling sections for mechanical properties .30 Annex B (normative) Supplementary or special requirements 34 Annex C (informative) Designation of steels given in this part of ISO 683 and of comparable grades covered in various designation systems36 Annex D (informative) D
11、imensional standards applicable to products complying with this part of ISO 683 .38 Bibliography .39 iv ISO 2016 All rights reserved ISO 683-1:2016(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The wor
12、k 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, governmental and non-governme
13、ntal, 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 are described in th
14、e 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). Attention is drawn to the poss
15、ibility 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 and/or on the ISO list o
16、f 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 expressions related to conformit y assessment, as well
17、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, Subcommittee SC 4, Heat treatable and alloy steels. Thi
18、s third edition cancels and replaces the second edition (ISO 683-1:2012), 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: Non-alloy steels for quenching and tempering Part
19、 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: Ball and roller bearing steels Part 18: Bright s
20、teel products ISO 2016 All rights reserved v Heat-treatable steels, alloy steels and free-cutting steels Part 1: Non-alloy steels for quenching and tempering 1 Scope This part of ISO 683 specifies the technical delivery requirements for semi-finished products, hot formed, e.g. blooms, billets, slabs
21、 (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 non-alloy steels and the non-alloy flame- and induction- hardening steels listed in Table 3 and supplied in one of the heat-treatment conditions given f
22、or 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 induction-hardened machine parts (see Tables 9 and 11), but can als
23、o be partly used in the normalized condition (see Table 10). The requirements for mechanical properties given in this part of ISO 683 are restricted to the sizes given in Tables 9 and 10. NOTE 1 Hammer-forged semi-finished products (blooms, billets, slabs, etc.), seamless rolled rings and hammer-for
24、ged 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
25、 For International 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 Bibl
26、iography. 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 requirements or additions to them can form the subject of an agreement between the
27、manufacturer and purchaser at the time of enquiry and order (see 5.2 and Annex B). In addition to this part of ISO 683, the general technical delivery requirements of ISO 404 are applicable.INTERNATIONAL ST ANDARD ISO 683-1:2016(E) ISO 2016 All rights reserved 1 ISO 683-1:2016(E) 2 Normative referen
28、ces The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO
29、 148-1, Metallic materials Charpy pendulum impact test Part 1: Test method ISO 377, Steel and steel products Location and preparation of samples and test pieces for mechanical testing ISO 404:2013, Steel and steel products General technical delivery requirements ISO 642, Steel Hardenability test by
30、end quenching (Jominy test) ISO 643, Steels Micrographic determination of the apparent grain size ISO 3887, Steels Determination of depth of decarburization ISO 4885: 1) , Ferrous products Heat treatments Vocabulary ISO 4948-1:1982, Steels Classification Part 1: Classification of steels into unalloy
31、ed and alloy steels based on chemical composition ISO 4948-2, Steels Classification Part 2: Classification of unalloyed and alloy steels according to main quality classes and main property or application characteristics ISO/TS 4949, Steel names based on letter symbols ISO 4967, Steel Determination o
32、f content of non-metallic inclusions Micrographic method using standard diagrams ISO 6506-1, Metallic materials Brinell hardness test Part 1: Test method ISO 6508-1, Metallic materials Rockwell hardness test Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N, T) ISO 6892-1, Metallic materials
33、Tensile testing - Part 1: Method of test at room temperature ISO 6929, Steel products Vocabulary ISO 7788, Steel Surface finish of hot-rolled plates and wide flats Delivery requirements ISO 9443, Heat-treatable and alloy steels Surface quality classes for hot-rolled round bars and wire rods Technica
34、l delivery conditions ISO 10474, Steel and steel products Inspection documents ISO 14284, Steel and iron Sampling and preparation of samples for the determination of chemical composition ISO 18265, Metallic materials Conversion of hardness values1) Under preparation. Stage at the time of publication
35、: ISO/DIS 4885:2016.2 ISO 2016 All rights reserved ISO 683-1:2016(E) 3 T erms a nd definiti ons For the purposes of this document, the terms and definitions given in ISO 377, ISO 4885, ISO 4948-1, ISO 4948-2, ISO 6929, and ISO 14284 and the following apply. NOTE For deviations from these terms and d
36、efinitions, see Notes 1 and 2 of Clause 1. 3.1 ruling section section for which the specified mechanical properties apply Note 1 to entry: Independent of the actual shape and dimensions of the cross-section of the product, the size of its ruling section is always given by a diameter. This correspond
37、s to the diameter of an “equivalent round bar”. That is a round bar which will show the same cooling rate as the actual ruling section of the product concerned at its position for taking the test pieces, when being cooled from austenitizing temperature. 3.2 austempering isothermal heat treatment for
38、 producing bainitic or ausferritic structure of a work piece Note 1 to entry: The final cooling to ambient temperature is not at a specific rate. SOURCE: ISO 4885: 2) , 3.11 3.3 non-alloy steel as defined in ISO 4948-1:1982, 3.1.2 4 Classific ation and designation 4.1 Classification The classificati
39、on of the relevant steel grades is according to ISO 4948-1 and ISO 4948-2. Steel grades C25, C35, C40, C45, C50, C55 and C60 are non-alloy quality steels. All other steel grades covered by this part of ISO 683 are non-alloy special steels. 4.2 Designation For the steel grades covered by this part of
40、 ISO 683, the steel names, as given in the relevant tables, are allocated in accordance with ISO/TS 4949. 5 Information to be supplied by the purchaser 5.1 Mandatory information The manufacturer shall obtain the following information from the purchaser at the time of enquiry and order: a) quantity t
41、o be delivered; b) designation of the product form (slab, bloom, billet, round bar, wire rod, wide flat, sheet, plate, strip, forging, etc.) c) either the designation of the dimensional standard and the dimensions and tolerances selected from this (see 7.9) or, for example in the case of drop forgin
42、gs, the designation of the drawing or any other document covering the dimensions and tolerances required for the product; 2) Under preparation. Stage at the time of publication: ISO/DIS 4885:2016. ISO 2016 All rights reserved 3 ISO 683-1:2016(E) d) reference to this part of ISO 683, i.e. ISO 683-1;
43、e) designation of the steel grade, as given in Table 3; f) standard designation for a test report 2.2 or, if required, any other type of inspection document in accordance with ISO 10474 or another standard (e.g. regional standards EN 10204 or JIS G 0415). 5.2 Options and/or supplementary or special
44、requirements Several options are specified in this part of ISO 683 and listed below. If the purchaser does not indicate any of these options, the products will be supplied in accordance with the basic specifications defined in this part of ISO 683 (see 5.1): a) if a heat-treatment condition other th
45、an the untreated condition is required, the symbol for this other condition (see Table 1, column 2); b) if another surface condition than “hot worked” or a special surface quality is required, the surface condition (see Table 2) and the surface quality (see 7.7); c) any requirement for the hardenabi
46、lity (+H, +HH, +HL) for special steels (see 7.1.4 and Tables 5 to 7); d) any supplementary requirement that shall be complied with, the symbol and, where necessary, the details of this supplementary requirement (see Annex B); e) any requirement for the verification of non-metallic inclusion content
47、(see 7.5); f) verification of hardenability and, if agreed, the information about calculation of the hardenability (see 9.3.2); g) any requirement regarding the permissible depth of decarburization (see 7.8); h) suitability of bars and rod for bright drawing (see 7.7.4); i) any requirement relating
48、to the removal of surface defects (see 7.7.5); j) hardness testing instead of tensile testing for normalized finished flat products in thicknesses 10 mm for plates or 100 mm for bars (see 7.1.3) (in this case, hardness limits should be agreed). 5.3 Ordering example EXAMPLE Fifty hot-rolled round bar
49、s according to ISO 1035-1 with a nominal diameter of 40 mm and a nominal length of 8 000 mm, with diameter tolerance according to class S and with length tolerance according to class L2 of ISO 1035-4 made of steel grade ISO 683-1, C45E (see Table 3) in the heat treatment condition +N (see Table 1), surface blast cleaned (+BC) (see Table 2), product analysis/option B.5 with an inspection certificate 3.1 according to ISO 10474: 50 round bars ISO 1035 40,0S 8 00
