ISO INTERNATIONAL STANDARD 4498 Second edition 2010-06-15 Sintered metal materials, excluding hardmetals Determination of apparent hardness and microhardness Materiaux métalliques frittes, a I'exclusion des métaux-durs Détermination de la dureté apparente et de la microdurete Reference number ISO 4498:2010(E) @ ISO 2010 by IHS under lic itted without license from IHS Not for Resale ISO4498:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The IsO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below COPYRIGHTPROTECTEDDOCUMENT @ISO2010 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, isO's member body in the country of the requester. ISO copyright office Case postale 56. CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ Iso 2010 - All rights reserved I without license from IHS Not for Resale ISO 4498:2010(E) Contents Page Foreword Introductior 1 Scope 2 Normative references 3 Apparatus 4 Sampling and preparation of test pieces.. 5 Test procedures... 5.1 Procedure 1 Determination of apparent hardness 5.2 Procedure 2 Determination of microhardness ..... 6 Expression of results.. 6.1 Apparent hardness 6.2 Microhardness.. Repeatabilityandreproducibility 7.1 Vickers apparent hardness . 7.2 Rockwell apparent hardness .6 7.3 Vickers microhardness. 7.4 Precision statement Test report. Annex A (normative) Test conditions and test loads as well as symbols and designations for microhardnessvalues.. .8 Annex B (informative) Repeatability and reproducibility.. 10 Bibliography. CopyrghtInternational OrganizaionSadardizaoghtsreserved ii se from IHS Not for Resale