ISO INTERNATIONAL STANDARD 14271 Third edition 2017-08 Resistance welding Vickers hardness testing (low-force and microhardness) of resistance spot, projection, and seam welds Soudage par resistance - Essais de dureté Vickers (force reduite et a la molette Reference number ISO 14271:2017(E) ISO iiw @ IS0 2017 IS0 14271:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS02017,PublishedinSwitzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax+41227490947 [email protected] www.iso.org ii @ IS0 2017 - All rights reserved IS0 14271:2017(E) Contents Page Foreword ..iv 1 Scope. .1 2 Normative references. .1 3 Terms and definitions 4 Applied forces for testing resistance welds. 5 Test pieces and testing locations . 5.1 Test pieces. 5.2 Testing locations. 6 Test equipment.. 7 Hardness test Iocations and procedure. 7.1 Choice of test. 7.2 Positions of hardness indentations 7.3 Testing procedure.. 7.4 Determination of hardness values 8 Test report. Bibliography 8 @ IS0 2017 - All rights reserved iii