ISO INTERNATIONAL STANDARD 21952 Second edition 2012-05-01 Welding consumables Wire electrodes, wires, rods and deposits for gas shielded arc welding of creep-resisting steels Classification Produits consommables pour le soudage Fils-électrodes, fils, baguettes et depots pour le soudage a I'arc sous gaz de protection des aciers résistant au fluage Classification Reference number ISO 21952:2012(E) @ ISO 2012 IHS unde nse from IHS Not for Resale ISO 21952:2012(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 memberbody 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 2012 - All rights reserved itted without license from IHS Not for Resale ISO 21952:2012(E) Contents Page Foreword Introduction 1 Scope 2 Normative references 3 Classification 4 Symbols and requirements .. 4.1 Symbol for the product or process 4.2 Symbol for the chemical composition of wire electrodes, wires, and rods 4.3 Symbol for the mechanical properties of all-weld metal...... 4.4 Symbol for shielding gas.... 5 Mechanicaltests 10 5.1 Preheating and interpass temperatures. 10 5.2 Welding conditions and pass sequence. 10 6 Chemical analysis 7 Rounding procedure 8 Retest.. 9 Technical delivery conditions. 10 Examples of designation. 2 Bibliography. ii IHS unde from IHS Not for Resa