ISO INTERNATIONAL STANDARD 7539-2 First edition 1989-12-15 Corrosion of metals and alloys - Stress corrosion testing Part 2: Preparation and use of bent-beam specimens Corrosion des metaux et alliages - Essais de corrosion sous contrainte - Partie 2: Preparation et utilisation des éprouvettes pour essais en flexion Reference number ISO 7539-2 : 1989 (E) No reproduction or networking permited without license from IHS Not for Resale 1SO 7539-2 : 1989 (E) Foreword iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (iso member bodies). The work of preparing international Standards is normally carried out through iso technical committees. Each member body interested ina subjectforwhichatechnical committeehasbeen establishedhas the rightto be represented on that committee.International organizations,govern- mental and non-governmental, in liaison with iso, also take part in the work. ISO coliaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the iSo Council. They are approved in accordance with iSO procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO 7539-2 was prepared by Technical Committee ISO/TC 156, Corrosionofmetalsandalloys. iso 7539 consists of the foilowing parts, under the general title Corrosion of metals and alloys -- Stress corrosion testing: Part 1: General guidance on testing procedures Part 2: Preparation and use of bent-beam specimens Part 3: Preparation and use of U-bend specimens Part 4: Preparation and use of uniaxially loaded tension specimens Part 5: Preparation and use of C-ring specimens Part6:Preparationanduseof pre-cracked specimens Part 7: Slow strain rate testing Part 8: Preparation and use of welded specimens @ISO1989 Allrights reserved. 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 International Organization for Standardization atalEcCu11Gandon-Citoriand Copyright Intermational Organization for Standardization No reproduction or networking permitted withoutlicense from IHS Not for Resale ISO 7539-2 :1989 (E) Introduction This part of Iso 7539 is one of a series giving procedures for designing, preparing and using various forms of test specimen to carry out tests to establish a metals resistance to stress corrosion. Each of the standards in the series needs to be read in association with ISo 7539-1. This helps in the choice of an appropriate test procedure to suit particular circumstances as well as giving guidance towards assessing the significance of the results of the tests. ili No reproduction or networking permitted without license from IHS Not for Resale