Your Alert Profile lists the documents that will be monitored. If the document is revised or amended, you will be notified by email. You may delete a document from your Alert Profile at any time. This standard is also available to be included in Standards Subscriptions.
|Published (Last):||2 November 2009|
|PDF File Size:||14.45 Mb|
|ePub File Size:||20.78 Mb|
|Price:||Free* [*Free Regsitration Required]|
DIN DIN EN DIN e Foreword This standard has been prepared by Technical Committee Galvanische? Amendments This standard differs from the February edition in that: a the ordering information has been amended; b service condition numbers are no longer specified; c the standard has been editorially revised. Previous editions DIN , It specifies their minimum thickness and gives information on the surface finish and heat treatment of the base metals. The standard does not cover semi-finished products and fasteners cf.
Threaded articles shall be coated as agreed. These normative references are cited at the appropriate places in the text, and the titles of the publications are listed below. For dated references, subsequent amendments to or revisions of any of these publications apply to this standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies.
Translation by DIN-Sprachendienst. In case of doubt, the German-language original should be consulted as the authoritative text. Designation of a tin coating on steel, with a minimum local thickness of 20? When selecting the significant surface area, bear in mind that the shape of the article will influence the overall coating thickness.
In the case of milled steel, agreement between manufacturer and customer should be sought. The articles to be coated shall show no material, manufacturing or surface defects which could impair the function, corrosion resistance or the appearance of the coating. In the case of milled articles, such defects include fissures, pores, foreign matter inclusions and laminations and in the case of cast articles, sink marks, cold laps, shrinkage cracks and grooves, whirls and sink marks.
Coatings shall be adherent. Until an appropriate standard is published, testing of adhesion shall be by agreement, as shall be the case when the porosity of coating is to be tested. Hydrogen embrittlement is a particularly relevant factor when there are stress concentrations as a result of the component design or its surface finish, or because of material inhomogeneity.
Hydrogen embrittlement can generally be prevented by selecting a base metal which is particularly suitable for receiving a corrosion-protective coating and by appropriate surface preparation and subsequent treatment.
Heat treatment is not usually carried out because this may lead to reduced solderability. Application of a copper, bronze or nickel undercoat is recommended, while maintaining the thickness of the tin coating.
If the base metal is a copper-zinc alloy, a copper, bronze or nickel undercoat with a thickness of 2? Not for Resale.
Want to learn more?