1、BS ISO 15787:2016Technical productdocumentation Heat-treatedferrous parts Presentationand indicationsBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 15787:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 15787:2016.Th
2、e UK participation in its preparation was entrusted to TechnicalCommittee TDW/4, Technical Product Realization.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. User
3、s are responsible for its correctapplication. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 75284 1ICS 01.100.20; 25.200Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authori
4、ty of theStandards Policy and Strategy Committee on 30 September 2016.Amendments issued since publicationDate Text affectedBS ISO 15787:2016 ISO 2016Technical product documentation Heat-treated ferrous parts Presentation and indicationsDocumentation technique de produits Produits ferreux traits ther
5、miquement Prsentation et indicationsINTERNATIONAL STANDARDISO15787Second edition2016-09-01Reference numberISO 15787:2016(E)BS ISO 15787:2016ISO 15787:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified,
6、no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic 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 mem
7、ber body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 15787:2016ISO 15787:2016(E)Foreword vIntroduction vi1 Scope . 12 Normative references 13 Terms, defini
8、tions . 14 Abbreviated terms 25 Indications in drawings . 25.1 General . 25.2 Material data . 35.3 Heat-treatment condition 35.4 Hardness data 35.4.1 Surface hardness 35.4.2 Core hardness . 35.4.3 Hardness value and limit deviations 35.5 Markings . 45.5.1 Marking of test points 45.5.2 Marking of sli
9、p zones . 55.6 Key for the allocation test point and nominal value . 55.7 Indication of local areas 55.8 Hardness depth. 65.9 Carburizing depth (CD) . 65.10 Compound layer thickness (CLT) 75.11 Oxide layer thickness (OLT) . 75.12 Strength data 85.13 Microstructure 85.14 Heat-treatment order (HTO). 8
10、5.15 Heat-treatment document (HTD) . 86 Graphical representation 96.1 General . 96.2 Heat-treatment of the entire part . 96.2.1 Uniform condition 96.2.2 Areas with different conditions 96.3 Local heat-treatment . 96.3.1 General 96.3.2 Areas requiring heat-treatment .106.3.3 Areas that may be heattre
11、ated 106.3.4 Areas that shall not be heat-treated .106.4 Heat-treatment sketch . 117 Practical examples .117.1 General 117.2 Quench-hardening, quench-hardening and tempering, austempering .117.2.1 Heat-treatment of the entire part Allover uniform requirements 117.2.2 Heat-treatment of the entire par
12、t Areas with different hardnesses .137.2.3 Local heat-treatment .147.3 Surface-hardening . 157.3.1 General. 157.3.2 Specification of surface hardness .157.3.3 Specification of surfacehardening hardness depth (SHD) 157.3.4 Practical examples .157.4 Case-hardening 217.4.1 Specification of surface hard
13、ness .217.4.2 Specification of casehardening hardness depth (CHD) .21 ISO 2016 All rights reserved iiiContents PageBS ISO 15787:2016ISO 15787:2016(E)7.4.3 Specification of carburizing depth (CD) .227.4.4 Practical examples .227.5 Nitriding and nitrocarburizing . 277.5.1 Specification of nitriding ha
14、rdness depth (NHD) .277.5.2 Specification of compound layer thickness (CLT) 277.5.3 Practical examples .287.6 Boriding 307.7 Annealing 30Annex A (normative) Graphical symbols 31Bibliography .33iv ISO 2016 All rights reservedBS ISO 15787:2016ISO 15787:2016(E)ForewordISO (the International Organizatio
15、n 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 which a technical committee has been established has
16、 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 matters of electrotechnical standardization.The pr
17、ocedures 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 document was drafted in accordance with the edito
18、rial rules of the ISO/IEC Directives, Part 2. www.iso.org/directivesAttention 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 iden
19、tified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received. www.iso.org/patentsAny 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
20、 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 Barriers to Trade (TBT), see the following URL: www.iso.org/iso/foreword.html.The committee responsible for t
21、his document is Technical Committee ISO/TC 10 Technical product documentation, Subcommittee SC 6, Mechanical engineering documentation.This second edition of ISO 15787 cancels and replaces the first edition (ISO 15787:2001), which has been technically revised.In addition to a number of editorial rev
22、isions, the following main changes have been made with respect to the previous edition: addition of an indication of both states of the part: 1) after the heat treatment (before final machining); and 2) after the final machining (Figure 16 and Figure 30); addition of examples representing the hardne
23、ss values and their limiting deviations (Table 1); addition of line types for the indication of local areas and their applications (Table 2); addition of line type 07.2 (dotted wide line) for carburized, carbonitrided, nitrided or nitrocarburized workpieces to indicate areas where heat treatment is
24、not allowed; replacement of the representation of hardness values, hardness depths, layer thicknesses and limiting deviations by their values and limiting deviations (Tables 1, 3, 4 and 5); addition of marking of slip zones (5.5.2), key for the allocation test point and nominal value (5.6), indicati
25、on of local areas (5.7), oxide layer thickness (OLT) (5.11), heat-treatment order (HTO)(5.14), heat-treatment document (HTD)(5.15); replacement of the title of “Drawings providing specific indication of heat treatment” by “Heattreatment sketch” (6.4); deletion of the former 6.4 surface fusion harden
26、ing in the 2001 edition; deletion of the Annex A tables present in the 2001 edition; addition of graphical symbols (Annex A). ISO 2016 All rights reserved vBS ISO 15787:2016ISO 15787:2016(E)IntroductionTechnical drawings of workpieces are the most important documents for construction, development an
27、d production, for the assembling, and for the use of the final products. Generally, a drawing provides information about the workpiece, its shape and design, the material used, the dimensions, surface behaviour, permitted abbreviations, inspection data, and more.Workpieces made from steel and iron o
28、ften have to withstand severe conditions to resist wear and corrosion. To attain the required properties, the workpieces are heat-treated in most applications. A drawing is a very important document as it also informs the heattreater about the parameters to be aware of for a successful heat-treatmen
29、t. For that, he should know the material used, the required heat-treatment, the required hardness and hardness depth, the expected or permitted microstructure, the required testing method and the test points for testing the heat-treated workpiece.In this time of global production, it is essential to
30、 dispose of an International Standard for technical product documentation, especially for the presentation and indication of heattreated parts. Therefore, ISO 15787:2001 was revised to help to improve the quality of heattreated workpieces.vi ISO 2016 All rights reservedBS ISO 15787:2016Technical pro
31、duct documentation Heat-treated ferrous parts Presentation and indications1 ScopeThis document specifies the manner of presenting and indicating the final condition of heattreated ferrous parts in technical drawings.2 Normative referencesThe following documents are referred to in the text in such a
32、way that some or all of their content constitutes requirements 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.ISO 128-24:2014, Technical drawings General principles of pr
33、esentation Part 24: Lines on mechanical engineering drawingsISO 4885, Ferrous products Heattreatments VocabularyISO 6506-1, Metallic materials Brinell hardness test Part 1: Test methodISO 6507-1, Metallic materials Vickers hardness test Part 1: Test methodISO 6508-1, Metallic materials Rockwell hard
34、ness test Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N, T)ISO/TS 8062-2, Geometrical product specifications (GPS) Dimensional and geometrical tolerances for moulded parts Part 2: RulesISO 81714-1, Design of graphical symbols for use in the technical documentation of products Part 1: Basi
35、c rules3 Terms, definitionsFor the purposes of this document, the terms and definitions given in ISO 4885 apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform
36、: available at http:/www.iso.org/obpINTERNATIONAL STANDARD ISO 15787:2016(E) ISO 2016 All rights reserved 1BS ISO 15787:2016ISO 15787:2016(E)4 Abbreviated termsFor the purposes of this document, the following abbreviated terms apply.CHD Case-hardening hardness depthCD Carburizing depthCLT Compound l
37、ayer thicknessNHD Nitriding hardness depthSHD Surface-hardening hardness depthHTO Heat-treatment orderHTD Heat-treatment documentIOD Internal oxidation depthOLT Oxide layer thickness5 Indications in drawings5.1 GeneralIndications in drawings concerning the heattreatment condition can relate to the a
38、ssembly or final condition as well as to the condition directly after heattreatment. This difference has to be observed implicitly, as heattreated parts are often subsequently machined (e.g. by grinding). By this, the hardness depth is reduced, especially with casehardened, surfacehardened and nitri
39、ded parts, as is the compound layer thickness of nitrided and nitrocarburized parts. The machining allowance shall therefore be taken into account appropriately during heattreatment. If no separate drawing is made for the condition of the heattreated part before the subsequent machining or finishing
40、, it is necessary to give information about the machining allowance. For this, indications should be made for both states of the part: 1) after the heattreatment (before final machining); and 2) after the final machining.NOTE This can be done, for example, by indicating the heattreated state and the
41、 finished state in accordance with ISO/TS 80622, by an additional representation, or by adding the words “before grinding” or “after grinding” (see Figures 16 and 30).The words indicating the heat-treated condition, the hardness and the hardness depth data shall be placed near the title block of the
42、 drawing.For some applications, it might be necessary to keep special data on the heattreatment process to make sure that the required properties after the heat treatment are attained. In this case, a heat-treatment order (HTO) should be used. If an HTO exists, in the drawing, a reference shall be g
43、iven by the wording “see HTO number ”. Examples are given in Figures 11, 12, 25, 29 and 42. To document the heat-treatment process carried-out in the heat-treatment workshop, a heat-treatment document (HTD) should be used.2 ISO 2016 All rights reservedBS ISO 15787:2016ISO 15787:2016(E)5.2 Material d
44、ataRegardless of the heattreatment method, generally the drawing shall identify the material used for the heat-treated part (name of the material, reference to the bill of materials, etc.).5.3 Heat-treatment conditionThe heattreated condition shall be specified in words, such as “quenchhardened”, “q
45、uenchhardened and tempered”, “casehardened”, “surfacehardened”, “nitrided”, etc.If more than one heattreatment is required, these treatments shall each be identified in words in the sequence of their execution, for example, “quenchhardened and tempered”. Indications by wording shall be chosen in acc
46、ordance with ISO 4885. See Clause 7 for practical examples.The heattreatment condition can be achieved in different ways. As a result, the performance characteristics can differ. Particulars of the technical process shall be specified in supplementary documents (e.g. HTO, HTD) where this is of impor
47、tance for the heat-treated condition.5.4 Hardness data5.4.1 Surface hardnessThe surface hardness shall be indicated as Rockwell hardness in accordance with ISO 6508-1, as Vickers hardness in accordance with ISO 6507-1, or as Brinell hardness in accordance with ISO 6506-1. Additional hardness values
48、shall be given in instances where the parts in the heat-treated condition have areas with different hardnesses (see Clause 6).For case-hardened, surface-hardened, nitrided or nitrocarburized parts, the hardness decreases downwards from the surface to the core. A test of the hardness in a cross secti
49、on of a part from the surface until the core yields a hardness profile; this profile can be used, for instance, in accordance with ISO 2639 to specify the hardness depth. The surface hardness value depends on the hardness profile, the hardness depth and the test load. Therefore, if the surface hardness is indicated for case-hardened or surfacehardened parts, the test load shall be adjusted according to the hardness depth and the expected surface hardness
