EN 13811:2003
(Main)Sherardizing - Zinc diffusion coatings on ferrous products - Specification
Sherardizing - Zinc diffusion coatings on ferrous products - Specification
This EN specifies minimum thickness requirements for three classes of zinc coating applied to ferrous products by the sherardizing process for the purpose of protection against corrosion and abrasion. It also specifies minimum requirements for the zinc dust to be used during the sherardizing process. This standard does not specify any requirements for the surface condition (finish or roughness) of the basis material before sherardizing. After-treatments or overcoating of sherardized articles is not covered by this standard.
Sherardisieren - Zink-Diffusionsüberzüge auf Eisenwerkstoffen - Anforderungen
Diese Europäische Norm legt für drei Klassen von Zinküberzügen, die zum Schutz vor Korrosion und Verschleiß mit Hilfe des Sherardisierverfahrens auf Eisenwerkstoffe aufgebracht wurden, Anforderungen an die Mindestschichtdicke fest. Sie legt auch Mindestanforderungen für den beim Sherardisierverfahren verwendeten Zinkstaub fest. Diese Norm legt keine Anforderungen an den Zustand der Oberfläche (Oberflächenbeschaffenheit oder Rauhigkeit) des Grundwerkstoffs vor dem Sherardisieren fest. Nachbehandlung oder Versiegelung von sherardisierten Bauteilen wird von der vorliegenden Norm nicht erfaßt.
Shérardisation - Revêtement par diffusion de zinc sur les produits ferreux - Spécifications
La présente Norme européenne spécifie les exigences d'épaisseur minimale relatives à trois classes de revêtement de zinc appliqué aux produits ferreux par shérardisation afin de les protéger contre la corrosion et l'abrasion.
Elle spécifie également les exigences minimales relatives à la poussière de zinc à utiliser lors de l'application du procédé de shérardisation.
La présente Norme ne spécifie aucune exigence relative à l'état de surface (fini ou rugosité) du matériau de base avant shérardisation.
Les post-traitements ou le revêtement des pièces shérardisées ne sont pas traités par la présente norme.
Šeradiranje cinkove difuzijske prevleke na železovih izdelkih - Zahteve
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Šeradiranje cinkove difuzijske prevleke na železovih izdelkih - ZahteveSherardisieren - Zink-Diffusionsüberzüge auf Eisenwerkstoffen - AnforderungenShérardisation - Revetement par diffusion de zinc sur les produits ferreux - SpécificationsSherardizing - Zinc diffusion coatings on ferrous products - Specification25.220.40Kovinske prevlekeMetallic coatingsICS:Ta slovenski standard je istoveten z:EN 13811:2003SIST EN 13811:2003en01-december-2003SIST EN 13811:2003SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13811April 2003ICS 25.220.40English versionSherardizing - Zinc diffusion coatings on ferrous products -SpecificationShérardisation - Revêtements par diffusion de zinc sur lesproduits ferreux - SpécificationsSherardisieren - Zink-Diffusionsüberzüge aufEisenwerkstoffen - AnforderungenThis European Standard was approved by CEN on 20 February 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 13811:2003 ESIST EN 13811:2003
Information to be supplied by the purchaser to the sherardizer.8A.1Essential information.8A.2Additional information.8Annex B (informative)
Determination of thickness.9B.1General.9B.2Microscopic cross-section method.9B.3Calculation of thickness from mass per unit area (reference method).9Annex C (informative)
General information.10C.1Sherardizing process.10C.2Basis material.10C.3Appearance.10C.4Adhesion.10C.5After-treatments.10C.6Coating thickness.10C.7Additional clearances for threaded fasteners.11Bibliography.12SIST EN 13811:2003
Guidance on the selection of coating thickness is given in C.6.NOTE 2There can be a requirement for specific pre-treatment when thicker coatings, e.g. Class 45, arespecified. The purchaser should seek the advice of the sherardizer in such cases.NOTE 3The local coating thickness should only be determined in relation to reference areas selected inaccordance with 6.2.2.6.2 Test methods6.2.1 GeneralThe local coating thickness shall be determined in accordance with the magnetic method (EN ISO 2178) or thegravimetric method (EN ISO 1460). The magnetic method is generally more appropriate for routine quality control.NOTEAnnex B provides additional information on the determination of thickness.SIST EN 13811:2003
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