1、February 2014 Translation by DIN-Sprachendienst.English price group 29No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).I
2、CS 77.040.10!%,BN“2093143www.din.deDDIN EN ISO 18265Metallic materials Conversion of hardness values (ISO 18265:2013);English version EN ISO 18265:2013,English translation of DIN EN ISO 18265:2014-02Metallische Werkstoffe Umwertung von Hrtewerten (ISO 18265:2013);Englische Fassung EN ISO 18265:2013,
3、Englische bersetzung von DIN EN ISO 18265:2014-02Matriaux mtalliques Conversion des valeurs de duret (ISO 18265:2013);Version anglaise EN ISO 18265:2013,Traduction anglaise de DIN EN ISO 18265:2014-02SupersedesDIN EN ISO 18265:2004-02www.beuth.deDocument comprises 93 pagesIn case of doubt, the Germa
4、n-language original shall be considered authoritative.01.14 DIN EN ISO 18265:2014-02 2 A comma is used as the decimal marker. National foreword This document (EN ISO 18265:2013) has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals”, Subcommittee SC 3 “Hardness testing” (
5、Secretariat: DIN, Germany) in collaboration with Technical Committee ECISS/TC 101 “Test methods for steel (other than chemical analysis)” (Secretariat: AFNOR, France) in accordance with the agreement on technical cooperation between ISO and CEN (Vienna Agreement). The responsible German body involve
6、d in its preparation was the Normenausschuss Materialprfung (Materials Testing Standards Committee), Working Committee NA 062-01-41 AA Hrteprfung fr Metalle. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 4957 DIN EN ISO 4957 ISO 6506-
7、1 DIN EN ISO 6506-1 ISO 6507-1 DIN EN ISO 6507-1 ISO 6507-2 DIN EN ISO 6507-2 ISO 6508-1 DIN EN ISO 6508-1 ISO 6508-2 DIN EN ISO 6508-2 ISO 6892-1 DIN EN ISO 6892-1 ISO 7500-1 DIN EN ISO 7500-1 ISO 9513 DIN EN ISO 9513 Amendments This standard differs from DIN EN ISO 18265:2004-02 as follows: a) Ann
8、ex H (informative) “Remarks on the effect of the changed test conditions” has been added; b) tool steels have been included; c) hardness test methods have been specified; d) the standard has been editorially revised. Previous editions DIN 50150: 1957-05, 1976-12, 2000-10 DIN EN ISO 18265: 2004-02 DI
9、N EN ISO 18265:2014-02 3 National Annex NA (informative) Bibliography DIN EN ISO 4957, Tool steels DIN EN ISO 6506-1, Metallic materials Brinell hardness test Part 1: Test method DIN EN ISO 6507-1, Metallic materials Vickers hardness test Part 1: Test method DIN EN ISO 6507-2, Metallic materials Vic
10、kers hardness test Part 2: Verification and calibration of testing machines DIN EN ISO 6508-1, Metallic materials Rockwell hardness test Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N, T) DIN EN ISO 6508-2, Metallic materials Rockwell hardness test Part 2: Verification and calibration of t
11、esting machines (scales A, B, C, D, E, F, G, H, K, N, T) DIN EN ISO 6892-1, Metallic materials Tensile testing Part 1: Method of test at room temperature DIN EN ISO 7500-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Verification a
12、nd calibration of the force-measuring system DIN EN ISO 9513, Metallic materials Calibration of extensometer systems used in uniaxial testing DIN EN ISO 18265:2014-02 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 18265 October 2013 ICS 77.040.10 Supersed
13、es EN ISO 18265:2003English Version Metallic materials - Conversion of hardness values(ISO 18265:2013) Matriaux mtalliques - Conversion des valeurs de duret (ISO 18265:2013) Metallische Werkstoffe - Umwertung von Hrtewerten(ISO 18265:2013) This European Standard was approved by CEN on 3 August 2013.
14、 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. Up-to-date lists and bibliographical references concerning such national standards may be obtained on
15、application to the CEN-CENELEC Management Centre 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 under the responsibility of a CEN member into its own language and notified to the CEN-CENELE
16、C Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
17、 Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue
18、 Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 18265:2013: EContents PageForeword 3Introduction 41 Scope . 52 Principles of conversion . 53 Application of conversion tables . 83.1 General . 83.
19、2 Converting values 113.3 Designation of conversion results . 133.4 Notes on use of conversion tables . 14Annex A (informative) Conversion table for unalloyed, low alloy steels and cast steel .16Annex B (informative) Conversion tables for steels for quenching and tempering .21Annex C (informative) C
20、onversion tables for steels for cold working 41Annex D (informative) Conversion tables for high speed steels .52Annex E (informative) Conversion tables for hardmetals .65Annex F (informative) Conversion tables for non-ferrous metals and alloys .70Annex G (informative) Conversion tables for tool stee
21、ls 80Annex H (informative) Remarks on the effect of the changed test conditions .84Bibliography .88DIN EN ISO 18265:2014-02 EN ISO 18265:2013 (E) 2 Foreword This document (EN ISO 18265:2013) has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals“ in collaboration with Tech
22、nical Committee ECISS/TC 101 “Test methods for steel (other than chemical analysis)” the secretariat of which is held by AFNOR. 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 April 2014, and conf
23、licting national standards shall be withdrawn at the latest by April 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This docume
24、nt supersedes EN ISO 18265:2003. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav R
25、epublic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 18265:2013 has been
26、 approved by CEN as EN ISO 18265:2013 without any modification. DIN EN ISO 18265:2014-02 EN ISO 18265:2013 (E) 3 IntroductionThe hardness conversion values given in Table A.1 were obtained in interlaboratory tests by the Verein Deutscher Eisenhttenleute (VDEh) (German Iron and Steel Institute) using
27、 verified and calibrated hardness testing machines. Statistically reliable information cannot be given on the uncertainty of these values because the test conditions were not reproducible, and the number of results used to calculate the mean hardness values is not known. The conversion values in thi
28、s table are in accordance with the information presented in IC No. 3 (1980) and IC No. 4 (1982) of the European Coal and Steel Community, as well as in ISO 4964:1984 and ISO/TR 10108:1989.Annexes C, D and E contain in a revised format the extensive results on the conversion of hardness values presen
29、ted in TGL 43212/02 to 43212/04, standards published by the former East German standards body, the Amt fr Standardisierung, Mewesen und Warenprfung (ASMW). The values presented in Annex B had also been determined by the ASMW, but were published in a report of the Physikalisch-Technische Bundesanstal
30、t (PTB),1the German national institute for science and technology, not in a TGL standard.The converted hardness values in the above-mentioned TGL standards were obtained in statistically reliable hardness and tensile tests. The hardness tests were performed using ASMW normal testing machines on plan
31、e-parallel, polished specimens of various materials in different heat treatment conditions. Tensile strength was tested on machines whose force measuring and extension measuring systems had been calibrated immediately before testing. The tensile test method used is equivalent to that specified in IS
32、O 6892-1, and the calibration procedures conform with those specified in ISO 7500-1 and ISO 9513.Annex G contains the results on the conversion of hardness values of two tool steels with the assistance of the Verein Deutscher Eisenhttenleute (VDEh) which were obtained in the year 2007.Users of this
33、International Standard should take note of Clause 2, especially the concluding warning.DIN EN ISO 18265:2014-02 EN ISO 18265:2013 (E) 4 1 ScopeThis International Standard specifies the principles of the conversion of hardness values to equivalent values in other hardness scales and to estimates of t
34、ensile strength. It gives general information on the use of the conversion tables.The conversion tables in Annexes A to G apply to unalloyed and low alloy steels and cast steel, steels for quenching and tempering, steels for cold working, high speed steels, tool steels, hardmetals, and non-ferrous m
35、etals and alloys.NOTE 1 The conversion tables in Annexes B to G are based on empirical results which were evaluated by means of regression analysis. Such analysis was not possible in the case of the values given in Annex A because a sufficient number of results was not available.NOTE 2 Annex H gives
36、 information about the effects of changes of the test procedure in the standards specifying the hardness tests.Converted values obtained using this International Standard are only directly applicable to the exact material tested. For all other materials, they provide an indicator only. In all cases,
37、 the converted values are not intended as replacements for values obtained by the correct standard method. In particular, tensile strength estimates are the least reliable converted values in this International Standard.Sections of this International Standard are reprinted, with permission of ASTM I
38、nternational, from ASTM E140 Standard Hardness Conversion Tables for Metals Relationship among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Harness, Knoop Hardness, and Scleroscope Hardness.2 Principles of conversionHardness testing is a form of materials testing that provides
39、information on the mechanical properties of a material with limited destruction of the specimen and within a relatively short period of time. In practice, it is often desirable to use hardness results to draw conclusions on the tensile strength of the same material if tensile testing is too involved
40、 or the piece to be examined is not to be destroyed.Since the means of loading in hardness testing is considerably different from that in tensile testing, it is not possible to derive a reliable functional relationship between these two characteristic values on the basis of a model. Nevertheless, ha
41、rdness values and tensile strength values are positively correlated, and so it is possible to draw up empirical relationships for limited applications.Often it is necessary to check a given hardness value against a value gained by a different test method. This is especially the case if only a certai
42、n method can be used due to the particular specimen or coating thickness, the size of the object to be tested, surface quality, or the availability of hardness testing machines.DIN EN ISO 18265:2014-02 EN ISO 18265:2013 (E) 5 Conversion of hardness values to tensile values makes it possible to carry
43、 out hardness measurement in place of the measurement of tensile strength taking into account that these tensile strength values must be seen as being the least reliable form of conversion. Likewise, with conversion between hardness scales, a hardness value can be replaced with a value obtained usin
44、g the desired method.Sometimes a conversion relationship is drawn on a single-case basis to gain information on properties other than hardness, most often to obtain a good estimate of tensile strength. Special relationships are sometimes drawn for hardness-to-hardness conversions. This may be done a
45、s long as the following conditions are fulfilled. The hardness test method used is only employed internally, and the results obtained will not be compared with those of other methods, or the details of the test procedure are defined precisely enough so that results can be reproduced by another labor
46、atory or at another time. The conversion tables used shall have been derived from a sufficiently large number of parallel experiments using both scales and carried out on the material in question. Converted results are to be expressed in such a manner that it is clear which method was used to determ
47、ine the original hardness value.However, the conversion values in this International Standard are informative only. A measurement made according to the correct hardness (or tensile) standard for the scale being reported shall always take precedence over a hardness (or strength) value derived from a conversion table within this International Standard. Similarly, a value derived by conversion shall not provide sufficient grounds either for a complaint or for proof of
