ISO/TR TECHNICAL REPORT 22824 First edition 2003-12-01 Welding consumables Predicted and measured FN in specifications A position statement of the experts of llW Commission IX Produits consommables de soudage - Valeurs prévues et valeurs mesurees de I'lndice de Ferrite (FN) dans les spécifications - Position des experts de la Commission IX de I'llw Reference number ISO/TR 22824:2003(E) ISO @ ISO 2003 yIHS under Not for Resale ISO/TR22824:2003(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 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. ?ISO2003 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. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland Copyihtinteratinal organization for Standardization @ ISO 2003 - All rights reserved itted without license from IHS Not for Resale ISO/TR 22824:2003(E) Copyright notice This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as permitted under the applicable laws of the user's country, neither this iso draft nor any extract from it may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, photocopying, recording or otherwise, without prior written permission being secured. Requests for permission to reproduce should be addressed to either IsO at the address below or IsO's memberbodyinthecountryoftherequester. 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 Reproduction may be subject to royalty payments or a licensing agreement. Violators may be prosecuted. CopyrightInterationalOrganzasaardizaoghtsreserved ii from IHS Not for Resale ISO/TR 22824:2003(E) Contents Page Foreword Introduction 1 Scope 2 Background. 3 Reproducibility of FN measurement... 4 Reproducibility of FN calculation ... 5 Comparison between FN calculation and FN measurement 6 Locationofferritemeasurement 7 Effect of postweld heat treatment (PWHT)... 8 Variables introduced during welding. 9 Conclusions Bibliography. Is2003-All rights reserved Copyright Intern: Not for Resale ISO/TR22824:2003(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (lSOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughIsO established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with isO, also take part in the work. Iso collaborates closely with the InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the Iso/lEc Directives, Part 2 The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Inexceptionalcircumstances,whenatechnicalcomm