1、August 2010 Translation by DIN-Sprachendienst.English price group 8No 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).ICS
2、77.040.10; 77.160!$jB“1713125www.din.deDDIN EN ISO 3738-1Hardmetals Rockwell hardness test (scale A) Part 1: Test method (ISO 3738-1:1982)English translation of DIN EN ISO 3738-1:2010-08Hartmetalle Rockwell-Hrteprfung (Skala A) Teil 1: Prfverfahren (ISO 3738-1:1982)Englische bersetzung von DIN EN IS
3、O 3738-1:2010-08Mtaux-durs Essai de duret Rockwell (chelle A) Partie 1: Mthode dessai (ISO 3738-1:1982)Traduction anglaise de DIN EN ISO 3738-1:2010-08SupersedesDIN ISO 3738-1:1991-07www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 8 pag
4、es08.10 DIN EN ISO 3738-1:2010-08 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee ISO/TC 119 “Powder metallurgy” (Secretariat: SIS, Sweden) in collaboration with Technical Committee CEN/SS M11 “Powder metallurgy” (Secretariat: CCMC).
5、The responsible German body involved in its preparation was the Normenausschuss Werkstofftechnologie (Technology of Materials Standards Committee), Working Committee NA 145-01-04 AA Probenahme und Prfverfahren fr Hartmetalle. The publication of DIN EN ISO 3738-1 and the simultaneous withdrawal of DI
6、N ISO 3738-1:1991-07 (German version of ISO 3738-1:1982) were necessary because ISO 3738-1:1982 was adopted at European level as EN ISO 3738-1 and the requirements of the CEN standstill policy regarding the adoption of European Standards at national level must be met; however, the content of DIN EN
7、ISO 3738-1 and that of DIN ISO 3738-1:1991 do not differ aside from a few editorial changes and the correction referred to in the amendments clause below. The International Standard ISO/R 80 referred to in clause 2 has been withdrawn, and was replaced by ISO 6508:1986 (now withdrawn); the current re
8、placement is ISO 6508-1. ISO/R 716, also referred to in clause 2, was withdrawn in December 1986. The verification and calibration of Rockwell hardness testing machines is now covered by ISO 6508-2. The DIN Standards corresponding to the International Standards referred to in this document are as fo
9、llows: ISO 6508-1 DIN EN ISO 6508-1 ISO 6508-2 DIN EN ISO 6508-2 Amendments This standard differs from DIN ISO 3738-1:1991-07 as follows: a) In accordance with the original document ISO 3738-1:1982, the nominal hardness of standard test block no. 3 in Table 2 has been corrected to 91,0 HRA (instead
10、of 91,5 HRA). b) The standard has been editorially revised. Previous editions DIN ISO 3738-1: 1991-07 National Annex NA (informative) Bibliography 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 mat
11、erials Rockwell hardness test Part 2: Verification and calibration of testing machines (scales A, B, C, D, E, F, G, H, K, N, T) EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 3738-1 April 2010 ICS 77.040.10; 77.160 English Version Hardmetals - Rockwell hardness test (scale A) - Part 1: Tes
12、t method (ISO 3738-1:1982) Mtaux-durs - Essai de duret Rockwell (chelle A) - Partie 1: Mthode dessai (ISO 3738-1:1982) Hartmetalle - Rockwell-Hrteprfung (Skala A) - Teil 1: Prfverfahren (ISO 3738-1:1982) This European Standard was approved by CEN on 16 April 2010. CEN members are bound to comply wit
13、h 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 application to the CEN Management Ce
14、ntre 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 Management Centre has the same status as the offic
15、ial versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slov
16、akia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide
17、 for CEN national Members. Ref. No. EN ISO 3738-1:2010: EDIN EN ISO 3738-1:2010-08 EN ISO 3738-1:2010 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Principle4 4 Symbols, designations and values of parameters.4 5 Apparatus .5 6 Test pieces .5 7 Procedure .5 8 Expression of result
18、s 5 9 Test report 6 DIN EN ISO 3738-1:2010-08 EN ISO 3738-1:2010 (E) 3 Foreword The text of ISO 3738-1:1982 has been prepared by Technical Committee ISO/TC 119 “Powder metallurgy” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 3738-1:2010. This European
19、 Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2010, and conflicting national standards shall be withdrawn at the latest by October 2010. Attention is drawn to the possibility that some of the element
20、s 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. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Europ
21、ean Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and th
22、e United Kingdom. Endorsement notice The text of ISO 3738-1:1982 has been approved by CEN as a EN ISO 3738-1:2010 without any modification. DIN EN ISO 3738-1:2010-08 EN ISO 3738-1:2010 (E) 4 N1) National footnote: Tolerances probably should be specified here. DIN EN ISO 3738-1:2010-08 EN ISO 3738-1:2010 (E) 5 DIN EN ISO 3738-1:2010-08 EN ISO 3738-1:2010 (E) 6
