ISO INTERNATIONAL STANDARD 7800 Third edition 2012-03-15 Metallic materials -Wire-Simple torsion test Materiauxmétalliques-Fils-Essai detorsion simple Reference number ISO 7800:2012(E) ISO @ISO2012 py IHS under lic n or networking permitted without license from IHS Not for Resale ISO 7800:2012(E) COPYRIGHTPROTECTEDDOCUMENT ISO2012 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or 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 copyright@iso.org Web www.iso.org Published in Switzerland @ ISO 2012 -All rights reserved etworking permitted without license from IHS Not for Resale ISO 7800:2012(E) Contents Page Foreword ..iv 1 Scope 2 Symbols and designations 3 Principle 2 4 Testing equipment. 2 5 Test piece 2 6 Testing conditions. .3 7 Procedure. .3 8 Test report Annex A (informative) Recommended types of jaws depending on the diameter d or characteristic dimension h of the wire. 5 Annex B (informative) Evaluation of fractures occurring during simple torsion test. ili se with I ut license from IHS Not for Resale