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1、BRITISH STANDARD BS EN ISO 6506-1:1999 Metallic materials Brinell hardness test Part 1: Test method The European Standard EN ISO 6506-1:1999 has the status of a British Standard ICS 77.040.10 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 09:15:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI B
2、S EN ISO 6506-1:1999 This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 November 1999 BSI 03-2000 ISBN 0 580 35051 7 National foreword This British Standard is t
3、he English language version of EN ISO 6506-1:1999. It is identical with ISO 6506-1:1999. It supersedes BS EN 10003-1:1995 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee ISE/NFE/4, Mechanical testing of metals, to Subcommittee ISE/NFE/4/5, Indentation
4、 hardness testing, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developme
5、nts and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publicat
6、ions with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI St
7、andards Electronic Catalogue. 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 confer immunity from legal obligations. Summary of
8、pages This document comprises a front cover, an inside front cover, pages i and ii, the EN ISO title page, page 2, the ISO title page, pages ii to iv, pages 1 to 14, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. T
9、his will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 09:15:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 6506-1:1999 BSI 03-2000i Contents Page National forewo
10、rdInside front cover Foreword2 Forewordiii Text of ISO 6506-11 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 09:15:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 09:15:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STAND
11、ARD NORME EUROPENNE EUROPISCHE NORM EN ISO 6506-1 September 1999 ICS 77.040.10 English version Metallic materials Brinell hardness test Part 1: Test method (ISO 6506-1:1999) Matriaux mtalliques Essai de duret Brinell Partie 1: Mthode dessai (ISO 6506-1:1999) Metallische Werkstoffe Hrteprfung nach Br
12、inell Teil 1: Prfverfahren (ISO 6506-1:1999) This European Standard was approved by CEN on 8 July 1999. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
13、 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 in three official versions (English, French, German). A version in any other language made by translation
14、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 of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,
15、Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1999 CEN All rights of exploitation in any form
16、and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 6506-1:1999 E Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 09:15:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 6506-1:1999 BSI 03-2000 2 Foreword The text of the International Standard ISO 6506-1:1999 has
17、been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals” in collaboration with Technical Committee ECISS/TC 1 “Steel testing”, the secretariat of which is held by AFNOR. This European Standard supersedes EN 10003-1:1994. This European Standard shall be given the status of a nat
18、ional standard, either by publication of an identical text or by endorsement, at the latest by March 2000, and conflicting national standards shall be withdrawn at the latest by March 2000. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following count
19、ries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Sta
20、ndard ISO 6506-1:1999 was approved by CEN as a European Standard without any modification. NOTENormative references to International Standards are listed in Annex ZA (normative). Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 09:15:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy:
21、 sheffieldun sheffieldun, na, Sun Nov 19 09:15:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 6506-1:1999 ii BSI 03-2000 Contents Page Forewordiii Introduction1 1Scope1 2Normative references1 3Principles1 4Symbols and designations1 5Testing machine3 6Test piece3 7Procedure3 8Uncertainty of the
22、 results5 9Test report5 Annex A (informative) Procedure for periodic checks of the testing machines by the user6 Annex B (normative) Minimum thickness of the test piece in relation to the mean diameter of indentation6 Annex C (normative) Determination of the Brinell hardness for testing on flat surf
23、aces7 Annex ZA (normative) Normative references to international publications with their relevant European publicationsInside back cover Bibliography14 Figure 1 Principle of test2 Table 1 Symbols and designations2 Table 2 Test forces for the different testing conditions4 Table 3 The force-diameter r
24、atio for different metallic materials4 Table B.16 Table C.17 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 09:15:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 6506-1:1999 BSI 03-2000iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of nat
25、ional 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 the right to be represented on that committee. Interna
26、tional 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. International Standards are drafted in accordance with the r
27、ules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard 6506
28、-1 was prepared by the Technical Committee ISO/TC 164, Mechanical testing of metals, Subcommittee SC 3, Hardness testing. This first edition of ISO 6506-1 cancels and replaces ISO 6506:1981 and ISO 410:1982, of which it constitutes a technical revision as follows: Deletion of the steel ball indenter
29、. Integration of the table for the determination of Brinell hardness values for use in tests made on flat surfaces (ISO 410:1982) into Annex C of this part of ISO 6506. Deletion of the 2 mm ball indenter. Addition of Annex A concerning a procedure for periodic checks of the testing machines by the u
30、ser. ISO 6506 consists of the following parts, under the general title Metallic materials Brinell hardness test: Part 1: Test method; Part 2: Verification and calibration of testing machines; Part 3: Calibration of reference blocks. Annex B and Annex C form a normative part of this part of ISO 6506.
31、 Annex A is for information only. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 09:15:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 09:15:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 6506-1:1999 BSI 03-20001 Introductio
32、n The force values in this part of ISO 6506 were calculated from kilogram force values. They were introduced before the SI-system was adopted. It was decided to keep the values based on the old units for this part of ISO 6506 but for the next revision it will be necessary to consider the advantage o
33、f introducing rounded values of test force and possible consequences on the hardness scales. Attention is drawn to the fact that in this part of ISO 6506, only the use of the hardmetal ball indenter is specified. The designation of the Brinell hardness is HBW and should not be confused with the form
34、er designation HB, or HBS when a steel ball indenter was used. 1 Scope This part of ISO 6506 specifies the method for the Brinell hardness test for metallic materials and is applicable up to the limit of 650 HBW. For specific materials and/or products, particular International Standards exist (i.e.
35、ISO 4498-1). 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 6506. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to
36、 agreements based on this part of ISO 6506 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain register
37、s of currently valid International Standards. ISO 4498-1, Sintered metal materials, excluding hardmetals Determination of apparent hardness Part 1: Materials of essentially uniform section hardness. ISO 6506-2:1999, Metallic materials Brinell hardness test Part 2: Verification and calibration of tes
38、ting machines. 3 Principles An indenter (hardmetal ball with diameter D) is forced into the surface of a test piece and the diameter of the indentation d left in the surface after removal of the force F is measured. The Brinell hardness is proportional to the quotient obtained by dividing the test f
39、orce by the curved surface area of the indentation. The indentation is assumed to be spherical with a radius corresponding to half of the diameter of the ball. 4 Symbols and designations See Figure 1 and Table 1. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 09:15:27 GMT+00:00 2006, Uncontr
40、olled Copy, (c) BSI EN ISO 6506-1:1999 2 BSI 03-2000 Table 1 Symbols and designations Figure 1 Principle of test SymbolDesignationUnit DDiameter of the ballmm FTest forceN dMean diameter of the indentationmm d1, d2Indentation diameters measured at 90mm hDepth of indentationmm HBWBrinell hardness for
41、ce-diameter ratioN/mm2 NOTE Constant = gn = acceleration due to gravity 1 gn - - 1 9,806 65 - -0,102= Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 09:15:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 6506-1:1999 BSI 03-20003 4.1 The Brinell hardness is denoted by HBW. NOTEIn former s
42、tandards, in cases when a steel ball had been used, the Brinell hardness was denoted by HB or HBS. 4.2 The letters HBW are preceded by the hardness value and supplemented by an index indicating the test conditions in the order: a) the diameter of the ball, in millimetres; b) a figure representing th
43、e test force (see Table 2); c) the duration of application of test force, in seconds, if different from the specified time (see 7.5). EXAMPLE 1 350 HBW 5/750 = Brinell hardness of 350 determined with a ball of 5 mm diameter and with a test force of 7,355 kN applied for 10 s to 15 s. EXAMPLE 2 600 HB
44、W 1/30/20 = Brinell hardness of 600 determined with a ball of 1 mm diameter and with a test force of 294,2 N applied for 20 s. 5 Testing machine 5.1 Testing machine, capable of applying a predetermined test force or forces within the range of 9,807 N to 29,42 kN in accordance with ISO 6506-2. 5.2 In
45、denter, a polished hardmetal ball, as specified in ISO 6506-2. 5.3 Measuring device, as specified in ISO 6506-2. NOTEA suggested procedure for periodic checks by the user is given in Annex A. 6 Test piece 6.1 The test shall be carried out on a surface which is smooth and even, free from oxide scale,
46、 foreign matter and, in particular, free from lubricants. The test piece shall have a surface finish that will allow an accurate measurement of the diameter of the indentation. 6.2 Preparation shall be carried out in such a way that any alteration of the surface, for example due to heat- or cold-wor
47、king, is minimized. 6.3 The thickness of the test piece shall be at least eight times the depth of indentation. Values for the minimum thickness of the test piece in relation to the mean diameter of indentation are given in Annex B. Visible deformation at the back of the test piece can indicate that
48、 the test piece is too thin. 7 Procedure 7.1 In general, the test is to be carried out at ambient temperature within the limits of 10 C to 35 C. Tests carried out under controlled conditions shall be made at a temperature of (23 5) C. 7.2 The test forces given in Table 2 shall be used. 7.3 The test
49、force shall be chosen so that the diameter of the indentation d lies between the values 0,24 D and 0,6 D. The force-diameter ratio (0,102 F/D2) shall be chosen according to the material and the hardness test as indicated in Table 3. In order to test the largest representative area of the test piece, the diameter of the testing ball shall be chosen to be as large as possible. When the thickness of the test piece permits, a 10 mm diameter ball is preferred. 7.4 The test pie