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1、BRITISH STANDARD BS 5812-1: 1979 ISO 6279:1979 Materials for plain bearings Part 1: Specification for aluminium alloy for solid bearings ISO title: Plain bearings Aluminium alloy for solid bearings UDC 621.822.5 034.71 Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:26:01 GMT+00:00 2006, U
2、ncontrolled Copy, (c) BSI BS 5812-1:1979 This British Standard, having been prepared under the direction of the Mechanical Engineering Standards Committee, was published under the authority of the Executive Board and comes into effect on 30 November 1979 BSI 12-1999 The following BSI references rela
3、te to the work on this standard: Committee reference MEE/119 Draft for comment 78/71549 DC ISBN 0 580 11041 9 Cooperating organizations The Mechanical Engineering Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following Government
4、departments and scientific and industrial organizations: Associated Offices Technical CommitteeDepartment of Trade (Marine Division) Association of Consulting EngineersElectricity Supply Industry in England and Association of Hydraulic EquipmentWales ManufacturersEngineering Equipment Users Associat
5、ion Association of Mining Electrical andFederation of Manufacturers of Construction Mechanical EngineersEquipment and Cranes British Compressed Air SocietyHealth and Safety Executive British Electrical and Allied ManufacturersInstitution of Gas Engineers Association (BEAMA)Institution of Mechanical
6、Engineers* British Gas CorporationInstitution of Plant Engineers British Gear Manufacturers AssociationInstitution of Production Engineers* British Internal Combustion EngineLloyds Register of Shipping Manufacturers Association*London Transport Executive British Pump Manufacturers AssociationMachine
7、 Tool Industry Research Association British Steel CorporationMinistry of Defence* British Steel IndustryNational Coal Board British Valve Manufacturers AssociationOil Companies Materials Association Chartered Institution of Building ServicesProcess Plant Association Crown Agents for Oversea Governme
8、nts andRailway Industry Association of Great Britain AdministrationsSociety of Motor Manufacturers and Traders Department of the EnvironmentLimited Department of Industry (MechanicalTelecommunication Engineering and Engineering)Manufacturing Association (TEMA) Department of Industry (National Engine
9、eringWater-tube Boilermakers Association Laboratory)* The organizations marked with an asterisk in the above list, together with the following, were directly represented on the committee entrusted with the preparation of this British Standard: Association of Bronze and Brass FoundersMotor Cycle Asso
10、ciation of Great Britain British Plastics FederationPlastics and Rubber Institute Copper Development AssociationIndividual experts International Tin Research Institute Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:26:01 GM
11、T+00:00 2006, Uncontrolled Copy, (c) BSI BS 5812-1:1979 BSI 12-1999i Contents Page Cooperating organizationsInside front cover National forewordii 1Scope and field of application1 2References1 3Composition and mechanical properties1 4Designation1 5Methods of test1 Table Aluminium alloy Al Sn6 Cu Ni2
12、 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:26:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5812-1:1979 ii BSI 12-1999 National foreword This Part of this British Standard has been prepared under the direction of the Mechanical Engineering
13、 Standards Committee and is identical with ISO 6279:1979 “Plain bearings Aluminium alloy for solid bearings” published by the International Organization for Standardization (ISO). A list of further Parts of this British Standard in course of preparation is as follows. Part 2: Specification for metal
14、lic multilayer materials for thin-walled bearings; Part 3: Specification for cast copper alloys; Part 4: Specification for wrought copper alloys; Part 5: Specification for lead and tin casting alloys for multilayer plain bearings; Part 6: Specification for hardness testing of antifriction metals: co
15、mpound materials; Part 7: Specification for hardness testing of antifriction metals: solid materials. Further Parts will be issued when they become available, subject to approval by the United Kingdom of the corresponding International Standards. Terminology and conventions. The text of the Internat
16、ional Standard has been approved as suitable for publication, without deviation, as a British Standard. Some terminology and certain conventions are not identical with those used in British Standards; attention is especially drawn to the following. The comma has been used in the Table as a decimal m
17、arker. In British Standards it is current practice to use a full point on the baseline as the decimal marker. Where the words “International Standard” appear, referring to this standard, they should be read as “British Standard”. A British Standard does not purport to include all the necessary provi
18、sions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references International StandardCorresponding British Standard ISO/R 190:1961BS 18 Methods for tensile t
19、esting of metals Part 1:1970 Non-ferrous metals (Technically equivalent) ISO 4384-IIaBS 5812 Materials for plain bearings Part 7a Specification for hardness testing of antifriction metals: solid materials (Identical) a In course of preparation. Summary of pages This document comprises a front cover,
20、 an inside front cover, pages i and ii, pages 1 and 2, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun,
21、 na, Fri Dec 01 14:26:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5812-1:1979 BSI 12-19991 1 Scope and field of application This International Standard specifies the composition and properties of a cast aluminium alloy for use in solid plain bearings. The alloy may or may not be subjected to co
22、ld work or heat treatment to increase strength. 2 References ISO/R 190, Tensile testing of light metals and their alloys. ISO 4384-II, Plain bearings Hardness testing of antifriction metals Part II: Solid materials. 3 Composition and mechanical properties 3.1 Composition The composition is given in
23、the Table. Methods of analysis shall be mutually agreed between supplier and purchaser. 3.2 Mechanical properties The mechanical properties are given in the Table. The minimum tensile strength and elongation are mandatory properties which are the subject of quality control checks carried out by the
24、material manufacturers. Minimum hardness is a mandatory property which may be checked on individual bearings. Typical values of other properties are given for design guidance. Bearings of aluminium alloy in the cold-worked condition are better able to retain interference fit in ferrous housings at e
25、levated temperatures. 4 Designation Designation of the aluminium alloy Al Sn6 Cu Ni: Aluminium alloy ISO 6279 Al Sn6 Cu Ni 5 Methods of test The tensile test shall be carried out according to ISO/R 190. If specimen sizes do not permit the use of standard test pieces, then test methods and mandatory
26、values shall be as agreed between supplier and purchaser. Hardness testing shall be carried out according to ISO 4384-II. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:26:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5812-1:1979 2 BSI 12-1999 Table Aluminium alloy Al Sn6 Cu Ni Chemica
27、l elementsChemical composition, % (m/m)a (Boldface values indicate the alloying components; other values indicate the permissible additions) Al Sn Cu Ni Si Fe Mn Ti Total other elements, max. Remainder 5,5 to 7 0,7 to 1,3 0,7 to 1,3 0,7 0,7 0,1 0,2 0,3 Mechanical properties Gravity castContinuously
28、cast as cast4 % cold workedas cast4 % cold worked Hardness Brinell min.35404045 HB10/10 000/10 Tensile strength Rm min.110120130140 N/mm2 Elongation A min.1071510 % 0,2 % Proof stress Rp0,2 .459055100 N/mm2 Elastic modulus E .71717171 N/mm2 103 Thermal expansion ! .23232323 10 6/K Thermal conductivi
29、ty 2 .184184184184 W/(mK) Density .2,92,92,92,9 kg/dm3 a % (m/m) means that the percentiles are related to the mass. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:26:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5812-1:1979 BSI 12-1999 Publications referred to See national foreword. L
30、icensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:26:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5812-1: 1979 ISO 6279:1979 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It pres
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39、mentation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:26:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI