ISO INTERNATIONAL STANDARD 9725 Second edition 2017-06 Nickel and nickel alloy forgings Pieces forgees en nickel et alliages de nickel Referencenumber IS09725:2017(E) Intemational Organizatin for Standardization ZHEJIANG INST OF STANDARDIZATION C1 5956617 @IS02017 No reproduction or networking permited without license from IHS IS09725:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS02017,Published inSwitzerland 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. ISOcopyrightoffice Ch. de Blandonnet 8. CP 401 CH-1214 Vernier,Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org Intematinaibr PrganizationfoStandardization Licensee-ZHEJIANG INST OF STANDARDIZoISQ0a7 -All rights reserved networking permited without license from IHS Not for Resale, 2017/8/21 01:06:0 IS0 9725:2017(E) Contents Page Foreword ..iv 1 Scope ..1 2 Normative references 3 Terms and definitions 4 Alloyidentification 5 Informationtobe supplied bythepurchaser .1 6 Requirements .2 6.1 Requirements for forgings heat treated by the manufacturer 2 6.1.1 General. .2 6.1.2 Composition .2 6.1.3 Tensile properties .2 6.1.4 Heat treatment. 2 6.1.5 Grainsize .3 6.1.6 Creep orstress ruptureproperties 3 6.1.7 Hardness .3 6.1.8 Dimensional tolerances. 3 6.1.9 Surface condition 3 6.2 Requirementsforforgings to be heattreatedbypurchaser 3 6.2.1 Composition. 3 6.2.2 Temper. .3 6.2.3 Precipitation-hardenable alloys .3 6.2.4 Dimensional tolerances. .3 6.2.5 Surface condition .3 Sampling .3 7.1 Chemical analysis ..3 7.2 Tensile, creep or stress rupture test 4 7.3 Heattreatment of test samples .4 7.3.1 Forgings supplied in hot-worked temper. 4 7.3.2 Forgings supplied in heat-treated temper .4 Numberoftests ..4 8 8.1 Determination ofthechemical composition 4 8.2 Forgings heat treated by the manufacturer .4 8.3 Forgings to be heat treated by thepurchaser .4 9 Test procedures. .5 9.1 Determinationofthechemicalcomposition .5 9.2 Tensiletests. .5 9.3 Creep and stress rupture tensile .5 Grain size determination. .5 9.4 9.5 Rounding of results .5 9.6 Retests. ..5 10 Marking 11 Purchaserorthirdpartinspection 12 Declaration of conformity Annex A (normative) Rules for nickel and nickel alloys identification based on ..15 chemical symbols Bibliography ..17 ntemaional oganzatin@S217-All rights reserved iii icensee=ZHEJIANG INSTOF STANDARDIZATIONC15956617 withoutlicense from IHS Not for Resale, 2017/8/21 01:06:07 No reproduction or networking perr