1、BS ISO 6279:2017 Plain bearings Aluminium alloys for solid bearings BSI Standards Publication WB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 6279:2017 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 6279:2017. It supersedes BS ISO 6279:2006 wh
2、ich is withdrawn. The UK participation in its preparation was entrusted to Technical Committee MCE/12, Plain bearings. 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 con
3、tract. Users are responsible for its correct application. The British Standards Institution 2017. Published by BSI Standards Limited 2017 ISBN 978 0 580 92855 0 ICS 21.100.10; 77.120.10; 77.150.10 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard
4、 was published under the authority of the Standards Policy and Strategy Committee on 31 March 2017. Amendments/corrigenda issued since publication Date T e x t a f f e c t e dBS ISO 6279:2017 ISO 2017 Plain bearings Aluminium alloys for solid bearings Paliers lisses Alliages daluminium pour paliers
5、massifs INTERNATIONAL STANDARD ISO 6279 Third edition 2017-03 Reference number ISO 6279:2017(E)BS ISO 6279:2017ISO 6279:2017(E)ii ISO 2017 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication
6、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 member body in the country of t
7、he requester. ISO copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.orgBS ISO 6279:2017ISO 6279:2017(E)Foreword iv 1 Scope . 1 2 Normative references 1 3 T erms and definitions . 1 4 Composition and me
8、chanical properties 1 4.1 Composition 1 4.2 Mechanical properties 1 5 Test methods . 1 6 Designation 2 ISO 2017 All rights reserved iii Contents PageBS ISO 6279:2017ISO 6279:2017(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodi
9、es (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. International organizations
10、, 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 intended for its further
11、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 www .iso .org/ directive
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14、ecific 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: w w w . i s o .org/ iso/ foreword .html. This document was prepared by Technical
15、 Committee ISO/123, Plain bearings, Subcommittee SC 2, Materials and lubricants, their properties, characteristics, test methods and testing conditions. This third edition cancels and replaces the second edition (ISO 6279:2006), which has been technically revised.iv ISO 2017 All rights reservedBS IS
16、O 6279:2017INTERNATIONAL ST ANDARD ISO 6279:2017(E) Plain bearings Aluminium alloys for solid bearings 1 Scope This document specifies the composition and properties of preferred cast aluminium alloys for use in solid plain bearings. Other alloys can be specified with agreement between the manufactu
17、rer and user. 2 Normative references The 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 undated references, the latest edition of the referenced docum
18、ent (including any amendments) applies. ISO 4384-2, Plain bearings Hardness testing of bearing metals Part 2: Solid materials 3 T erms a nd definiti ons No terms and definitions are listed in this document. ISO and IEC maintain terminological databases for use in standardization at the following add
19、resses: IEC Electropedia: available at h t t p :/ www .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp 4 Composition and mechanical properties 4.1 Composition Preferred compositions are given in Table 1. Methods of analysis shall be mutually agreed between
20、 the manufacturer and user. 4.2 Mechanical properties Mechanical properties are given in Table 1. Tensile strength and elongation are mandatory properties that are the subject of quality control checks carried out by the material manufacturers. Hardness is a mandatory property that may be checked on
21、 individual bearings. Typical values of other properties are given for design guidance. 5 Test methods The tensile test shall be carried out as agreed between the manufacturer and user. Test methods and mandatory values shall be agreed between the manufacturer and user. Hardness testing shall be car
22、ried out in accordance with ISO 4384-2. ISO 2017 All rights reserved 1BS ISO 6279:2017ISO 6279:2017(E) Table 1 Aluminium alloys Aluminium alloy AlSn6Cu AlSn6CuNi AlSn20Cu AlZn4,5SiCuMg AlZn5SiCuMg AlSi12CuMgNi Chemical composition (mass fraction in %) Chemical element Al Remainder Remainder Remainde
23、r Remainder Remainder Remainder Sn 5,5 to 6,5 5,5 to 7 17,5 to 22,5 0,2 max. 0,2 max. Cu 1,3 to 1,7 0,7 to 1,3 0,7 to 1,3 0,9 to 1,2 0,9 to 1,2 0,8 to 1,5 Ni 0,2 max. 0,7 to 1,3 0,2 max. 0,2 max. 1,3 max. Si 0,3 max. 0,7 max. 0,7 max. 1,0 to 2,0 1,2 to 2,0 11,0 to 13,0 Fe 0,4 max. 0,7 max. 0,7 max.
24、0,4 max. 0,6 max. 0,7 max. Mn 0,2 max. 0,1 max. 0,7 max. 0,3 max. 0,3 max. 0,3 max. Zn 0,2 max. 4,4 to 5,0 5,0 to 5,5 0,3 max. Mg 0,1 max. 0,4 to 0,6 0,4 to 0,6 0,8 to 1,3 Ti 0,05 to 0,2 0,2 max. 0,02 to 0,15 0,02 to 0,15 0,2 max. Total other elements, max. 0,5 0,5 0,5 0,5 0,5 0,5 Mechanical propert
25、ies Hardness Brinell HB10/1 000/10 35 to 40 35 to 45 30 to 55 48 to 56 50 to 60 90 to 120 Tensile strength R mMPa 130 to 140 110 to 140 110 to 130 160 to 200 180 to 220 200 to 250 Elongation A % 30 to 36 10 to 20 28 to 32 20 to 22 19 to 21 0,3 to 0,8 0,2 % Proof stress R p0,2MPa 50 to 60 45 to 60 40
26、 to 60 80 to 110 100 to 120 190 to 230 Elastic modulus E GPa 69 71 63 75 75 75 Thermal expansion 10 6 /K 23 23 24 23 23 21 Thermal conductivity W/(m K) 160 160 155 170 170 184 Density 10 3 kg/m 3 2,9 2,9 3,12 2,9 2,9 2,7 6 Designation The designation shall include the following information, in the o
27、rder given: a) “Aluminium alloy”; b) reference to this document, i.e. ISO 6279; c) name of alloy. EXAMPLE The aluminium alloy AlSn6Cu is designated by the following: Aluminium alloy ISO 6279 AlSn6Cu2 ISO 2017 All rights reservedBS ISO 6279:2017BS ISO 6279:2017ISO 6279:2017(E) ISO 2017 All rights res
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