ISO INTERNATIONAL STANDARD 9327-1 First edition 1999-04-15 Steel forgings and rolled or forged bars for pressure purposes Technical delivery conditions Part 1: General requirements Pieces forgées et barres laminées ou forgées en acier pour appareils a pressionConditions techniques de livraison- Partie1: Exigences generales ISO Reference number ISO 9327-1:1999(E) y IHS under I without license from IHS Not for Resale ISO 9327-1:1999(E) Contents Page 1Scope 2 Normative references 3 Terms and definition 4 Ordering. .2 5 Requirements. .4 6 Inspection, testing and conformity of products. 6 7 Marking ... Annex A (normative) Ruling section and equivalent diameters or thicknesses. Annex B (normative) Usual surface conditions for stainless steels. 12 Annex C (normative) Supplementary or special requirements (options).... ....13 Bibliography. @ISO1999 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic International OrganizationforStandardization Casepostale56·CH-1211Geneve20·Switzerland Internet [email protected] Printed in Switzerland THS unde Not for Resale @ ISO ISO9327-1:1999(E) Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(lSo member bodies). The work of preparing International Standards is normally carried out through iSO technical committees. Each member body interested in a subject for which a technical committee has been established has liaison with IsO, also take part in the work. iSO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 3. 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. Steel for pressure purposes. This first edition, together with parts 2 to 5 of ISO 9327, cancels and replaces ISO 2604-1:1975. Iso 9327 consists of the following parts, under the general title Steel forgings and rolled or forged bars for pressure purposes -Technical delivery conditions: Part 1: General requirements Part 2: Non-alloy and alloy (Mo, Cr and CrMo) steels with specified elevated temperature properties Part 3:Nickel steels with specified low temperature properties Part 4: Weldable fine grain steels with high proof strength Part 5: Stainless steels Annexes A, B and C form an integral part of this part of iSO 9327. ili