ISO INTERNATIONAL STANDARD 16048 First edition 2003-02-01 Passivation of corrosion-resistant stainless-steel fasteners Passivation des élements de fixation en acier inoxydable resistant a la corrosion Reference number ISO 16048:2003(E) ISO @ ISO 2003 by IHS under lic ted without license from IHS Not for Resale ISO 16048:2003(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 trademarkof AdobeSystems 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. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland Copyriahtinteratinal Oorganization for Standardization @Iso2003-All rightsreserved ed without license from IHS Not for Resale IS0 16048:2003(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 /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. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent ISO 16048 was prepared by Technical Committee ISO/TC 2, Fasteners, Subcommittee SC 1, Mechanical properties offasteners. ii ISO 16048:2003(E) Introduction In the preparation of this International Standard special attention has been given to the fundamental fact that a surface film of chromium oxide is immediately formed when producing stainless steel or products made of stainless steel. It is this very thin oxide film which can be thickened by passivation. The thickness of the layer is about 0,002 μm. @IsO2003-All rights reserved etworking permitted without license from IHS Not for Resale INTERNATIONAL STANDARD ISO 16048:2003(E) Passivation of corrosion-resistant stainless-steel fasteners Scope This International Standard specifies the methods most often used for passivation of corrosion-resistant stainless steel fasteners. Typical anodic dissolution behaviour of an active-passive-transpassive metal is given in Annex A. Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IsO 3506-1:1997, Mechanical properties of corrosion-resistant stainless-steel fasteners — Part 1: Bolts, screws and studs IsO 3506-3:1997, Mechanical properties of corrosion-resistant stainless-steel fasteners Part 3: Set screws andsimilarfastenersnotundertensilestress Iso 3506-4:—_1), Mechanical properties of corrosion-resistant stainless-steel fast