SIST EN 13858:2004
(Main)Corrosion protection of metals - Non-electrolytically applied zinc flake coatings on iron or steel components
Corrosion protection of metals - Non-electrolytically applied zinc flake coatings on iron or steel components
This European Standard specifies the characteristics of non-electrolytically applied coatings, composed mainly of zinc flakes, for the protection against corrosion of steel components, excluding threaded fasteners for which another specification exists (see prEN ISO 10683). It specifies minimum corrosion resistance to the neutral salt spray test in accordance with ISO 9227 when applied to steel components. The coatings can be supplied with integral lubricant if specified.
Korrosionsschutz von Metallen - Nicht elektrolytisch aufgebrachte schuppenförmige Zinküberzüge auf Werkstücken aus Eisen oder Stahl
Diese Europäische Norm legt die Kennwerte von nicht elektrolytisch aufgebrachten Überzügen fest, die hauptsächlich aus Zinkblättchen bestehen und auf Stahlwerkstücken als Korrosionsschutz dienen, außer Befestigungsschrauben, für die es eine andere Spezifikation gibt (siehe prEN ISO 10683). Sie legt die Mindestkorrosionsbeständigkeit fest, die bei Anwendung des neutralen Salzsprühtests nach ISO 9227 auf Stahlwerkstücke vorhanden sein muß. Die Überzüge können bei Bedarf mit einem integrierten Schmiermittel versehen werden.
Protection des métaux contre la corrosion - Revetements non électrolytiques de lamelles de zinc sur des composants en fer ou en acier
La présente Norme européenne décrit les caractéristiques et spécifie les exigences relatives aux revetements non électrolytiques composés principalement de lamelles de zinc, en vue de la protection contre la corrosion des composants en acier, a l'exclusion des éléments de fixation filetés qui font l'objet d'une autre spécification (voir l'EN ISO 10683).
Lorsqu'elle est appliquée a des composants en acier, elle spécifie la résistance minimale a la corrosion évaluée par l'essai au brouillard salin neutre conformément a l'ISO 9227.
Les revetements peuvent etre fournis avec un lubrifiant intégré, si cela est spécifié.
Les procédés d'application des revetements de lamelles de zinc n'entraînent pas de fragilisation par l'hydrogene. Pour cette raison, ces revetements sont spécifiquement recommandés pour la protection de composants en acier ayant une résistance mécanique élevée (Rm = 1000 MPa).
La durée et la température utilisées pour la cuisson du revetement peuvent avoir une incidence sur les caractéristiques mécaniques de certains composants en raison de leur état métallurgique.
NOTE Il convient que ces revetements ne soient pas appliqués a des composants susceptibles d'etre utilisés a des températures supérieures a la température de cuisson du revetement, sauf si la commande le précise explicitement.
Corrosion protection of metals - Non-electrolytically applied zinc flake coatings on iron or steel components
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Corrosion protection of metals - Non-electrolytically applied zinc flake coatings on iron or steel componentsKorrosionsschutz von Metallen - Nicht elektrolytisch aufgebrachte schuppenförmige Zinküberzüge auf Werkstücken aus Eisen oder StahlProtection des métaux contre la corrosion - Revetements non électrolytiques de lamelles de zinc sur des composants en fer ou en acierCorrosion protection of metals - Non-electrolytically applied zinc flake coatings on iron or steel components25.220.40Kovinske prevlekeMetallic coatingsICS:Ta slovenski standard je istoveten z:EN 13858:2003SIST EN 13858:2004en01-junij-2004SIST EN 13858:2004SLOVENSKI
STANDARD
SIST EN 13858:2004
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13858August 2003ICS 25.220.40English versionCorrosion protection of metals - Non-electrolytically applied zincflake coatings on iron or steel componentsProtection des métaux contre la corrosion - Revêtementsnon électrolytiques de lamelles de zinc sur des composantsen fer ou en acierKorrosionsschutz von Metallen - Nicht elektrolytischaufgebrachte schuppenförmige Zinküberzüge aufWerkstücken aus Eisen oder StahlThis European Standard was approved by CEN on 10 July 2003.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13858:2003 ESIST EN 13858:2004
EN 13858:2003 (E)2ContentsPageForeword.3Introduction.41Scope.52Normative references.53Terms and definitions.64Types of coating and application.64.1Surface cleaning and preparation.64.2Type of coating.64.3Coating processes.64.4Curing.65Properties of non-electrolytically applied coatings.75.1Corrosion protection.75.1.1Protection mechanism.75.1.2Supplementary coatings.75.2Ductility.75.3Electrical conductivity.76Requirements.86.1Appearance.86.2Accelerated corrosion test.86.3Coating thickness.86.4Cohesion/adhesion.86.5Coating designation.96.5.1General.96.5.2Examples.97Information to be supplied by the purchaser.9SIST EN 13858:2004
EN 13858:2003 (E)3ForewordThis document (EN 13858:2003) has been prepared by Technical Committee CEN/TC 262 “Metallic and otherinorganic coatings”, the secretariat of which is held by BSI.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by February 2004, and conflicting national standards shall be withdrawn at the latestby February 2004.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.SIST EN 13858:2004
EN 13858:2003 (E)4IntroductionThe purpose of non-electrolytically applied zinc flake coatings (which may contain a small proportion of aluminiumflakes) is for the improvement of corrosion protection of steel components.
These coatings can also incorporate anintegral lubricant, for the improvement of lubricity, if required.The non-electrolytically applied zinc flake coatings for iron and steel components can be obtained by coldimmersion or by pneumatic or electrostatic gun-spraying of the coating liquid, followed by curing.
These coatingsmay also contain a certain proportion of aluminium flakes.
There is no risk of hydrogen embrittlement associatedwith the coating process and the subsequent curing treatment.
Coating processes by cold immersion ensurecomplete coverage of components, even with complex shapes.The coatings give cathodic protection to steel under normal atmospheric conditions.The efficiency of a zinc flake based coating for corrosion protection depends on its thickness and on the type ofcorrosive environment to which it is exposed.The results of accelerated corrosion tests, like the neutral salt spray test, have no direct correlation with thecorrosion protection in other environments.Variations in colour or lubricity can be obtained by applying a suitable supplementary coat to zinc flake basedcoatings.WARNING — When welding zinc flake coated articles, ensure adequate ventilation is provided in order to evacuatefumes from the welding area.SIST EN 13858:2004
EN 13858:2003 (E)51 ScopeThis European Standard describes the characteristics of and specifies requirements for non-electrolyticallyapplied coatings, composed mainly of zinc flakes, for the protection against corrosion of steel components,excluding threaded fasteners for which another specification exists (see prEN ISO 10683).It specifies minimum corrosion resistance to the neutral salt spray test in accordance with ISO 9227 whenapplied to steel components.The coatings can be supplied with integral lubricant if specified.The application processes used for zinc flake coatings do not induce hydrogen embrittlement.
For thisreason, these coatings are specifically recommended for the protection of high strength steel components(Rm
1 000 MPa).The time and temperature used for the curing of the coating can influence the mechanical characteristics ofcertain components due to their metallurgical condition.NOTEThese coatings should not be applied to components that can be used at temperatures higher than the curingtemperature of the coating, unless specifically ordered.2 Normative referencesThis European Standard incorporates, by dated or undated reference, provisions from other publications.These normative references are cited at the appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these publications apply tothis European Stand
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