1、BRITISH STANDARD BS EN 24489:1993 ISO 4489:1978 Sintered hardmetals Sampling and testing The European Standard EN 24489:1993 has the status of a British Standard UDC 621.762.5:669-492.2:620.1BSEN24489:1993 This British Standard, having been prepared under the directionof the Iron and SteelStandards
2、Policy Committee, was published underthe authority of the Standards Board and comesintoeffect on 15 June1993 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference ISM/65 Special announcement in BSINews, January1993 ISBN 0 580 21965 8 Cooperating organizati
3、ons The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standardiseri
4、ngsraad Finland Suomen Standardisoimisliito, r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Iceland Technological Institute of Iceland Ireland National Standards Authority of Ireland Italy Ente Nazionale I
5、taliano di Unificazione Luxembourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spain Asociacin Espaola de Normalizacin y Certificacin Sweden Standardiseringskommissionen i Sverige Swit
6、zerland Association suisse de normalisation United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBSEN24489:1993 BSI 12-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 1 Scope and field of application
7、3 2 References 3 3 Definitions 3 4 Sampling 3 5 Testing 3 6 Test report 3 Annex ZA (normative) Normative references to international publications with their relevant European publications 4 National annex NA (informative) Committees responsible Inside back cover National annex NB (informative) Cross
8、-references Inside back cover Table 1 3 Table 2 3BSEN24489:1993 ii BSI 12-1999 National foreword This British Standard has been prepared under the direction of the Iron and Steel Standards Policy Committee and is the English language version of EN24489:1993 Sintered hardmetals Sampling and testing,
9、published by the European Committee for Standardization (CEN). It is identical with ISO4489:1978, prepared by Technical Committee119, Powder metallurgy, of the International Organization for Standardization (ISO) with the active participation of the UK. This British Standard supersedes BS5600-4.11:1
10、980 which is withdrawn and from which it differs by the addition ofAnnex ZA. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself conf
11、er immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 to 4, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This
12、 will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 24489 April 1993 UDC 621.762.5:669-492.2:620.1 Descriptors: Powder metallurgy, hard metals, sintered products, sampling, tests, standards lists English version Sintered hardmetals
13、 Sampling and testing (ISO4489:1978) Mtaux-durs fritts Echantillonnage et essais (ISO4489:1978) Sinterhartmetalle Probenahme und Prfung (ISO4489:1978) This European Standard was approved by CEN on 1993-04-02. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate t
14、he 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 Central Secretariat or to any CEN member. This European Standard exists i
15、n 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies
16、of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretar
17、iat: rue de Stassart 36, B-1050 Brussels 1993 Copyright reserved to CEN members Ref. No. EN 24489:1993 EEN24489:1993 BSI 12-1999 2 Foreword In 1992, ISO4489:1978 Sintered hardmetals Sampling and testing was submitted to the CEN Primary Questionnaire procedure. Following the positive result of the CE
18、N/CS Proposal ISO4489:1978 was submitted to the Formal Vote. The result of the Formal Vote was positive. 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 October1993, and conflicting national stand
19、ards shall be withdrawn at the latest by October1993. According to the Internal Regulations of CEN/CENELEC, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Po
20、rtugal, Spain, Sweden, Switzerland and United Kingdom. NOTEThe European references to international publications are given inAnnex ZA (normative).EN24489:1993 BSI 12-1999 3 1 Scope and field of application This International Standard relates to the sampling and testing of sintered hardmetals for det
21、ermination of their physical and mechanical properties. 2 References ISO 3326, Hardmetals Determination of (the magnetization) coercivity. ISO 3369, Impermeable sintered metal materials and hardmetals Determination of density. ISO 3738, Hardmetals Rockwell hardness test (scale A). ISO 3878, Hardmeta
22、ls Vickers hardness test. ISO 4499, Hardmetals Metallographic determination of microstructure 1) . ISO 4505, Hardmetals Metallographic determination of porosity and uncombined carbon 1) . 3 Definitions 3.1 lot a defined quantity of presumably uniform sintered parts of a single type, size and grade 3
23、.2 test sample one or more units taken from a lot for the determination of properties 4 Sampling Hardmetal parts are supplied in a wide range of sizes and quantities and for a wide range of applications. Also, the determination of physical and mechanical properties is time consuming and sometimes of
24、 a destructive nature. It is therefore neither desirable nor practical to employ a sample quantity comparable with that normally employed for checking dimensional features. The degree of consistency of a lot can therefore only be determined economically in the course of production control. For confi
25、rmation of the grade of hardmetal, it is usually sufficient to take a test sample of one unit. 5 Testing 5.1 Tests which are usually carried out on a test sample are given inTable 1. Table 1 5.2 Tests which may be carried out in special cases are given inTable 2. Table 2 6 Test report Sintered produ
26、cts are frequently ordered in small quantities and taken from stock. Therefore, the identity of the lot cannot be retained and it must not be expected that a test report can be supplied with individual orders. 1) At present at the stage of draft. Type of testing International Standard Determination
27、of coercivity ISO 3326 Determination of density ISO 3369 Determination of hardness HRA ISO 3738 Determination of hardness HV ISO 3878 Type of testing International Standard Determination of microstructure ISO 4499 Determination of porosity and uncombined carbon ISO 4505EN24489:1993 4 BSI 12-1999 Ann
28、ex ZA (normative) Normative references to international publications with their relevant European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the pub
29、lications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including
30、amendments). Publication Year Title EN/HD Year ISO 3326 Hardmetals Determination of (the magnetization) coercivity EN 23326 ISO 3369 Impermeable sintered metal materials and hardmetals Determination of density EN 23369 ISO 3738 Hardmetals Rockwell hardness test (scale A) ISO 3878 Hardmetals Vickers
31、hardness test EN 23878 ISO 4499 Hardmetals Metallographic determination of microstructure EN 24499 ISO 4505 Hardmetals Metallographic determination of porosity anduncombined carbon EN 24505BSEN24489:1993 BSI 12-1999 National annex NA (informative) Committees responsible The United Kingdom participat
32、ion in the preparation of this European Standard was entrusted by the Iron and Steel Standards Policy Committee (ISM/-) to Technical Committee ISM/65, upon which the following bodies were represented: British Hardmetal Association Federation of British Engineers (Test Manufacturers) Society of Motor
33、 Manufacturers and Traders Limited Coopted member National annex NB (informative) Cross-references Publication referred to Corresponding British Standard EN 23326:1993 ISO 3326:1975 BS EN 23326:1993 Hardmetals Determination of (the magnetization) coercivity EN 23369:1993 ISO 3369:1975 BS EN 23369:19
34、93 Impermeable sintered metal materials and hardmetals Determination of density EN 23878:1993 ISO 3878:1983 BS EN 23878:1993 Hardmetals Vickers hardness test EN 24499:1993 ISO 4499:1978 BS EN 24499:1993 Hardmetals Metallographic determination of microstructure EN 24505:1993 ISO 4505:1978 BS EN 24505
35、:1993 Hardmetals Metallographic determination of porosity and uncombined carbon BS EN 24489:1993 ISO 4489:1978 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards
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