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Homepage>BS Standards>25 MANUFACTURING ENGINEERING>25.220 Surface treatment and coating>25.220.40 Metallic coatings>BS EN ISO 17668:2016 Zinc diffusion coatings on ferrous products. Sherardizing. Specification
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immediate downloadReleased: 2016-03-31
BS EN ISO 17668:2016 Zinc diffusion coatings on ferrous products. Sherardizing. Specification

BS EN ISO 17668:2016

Zinc diffusion coatings on ferrous products. Sherardizing. Specification

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Standard number:BS EN ISO 17668:2016
Pages:24
Released:2016-03-31
ISBN:978 0 580 77412 6
Status:Standard
DESCRIPTION

BS EN ISO 17668:2016


This standard BS EN ISO 17668:2016 Zinc diffusion coatings on ferrous products. Sherardizing. Specification is classified in these ICS categories:
  • 25.220.40 Metallic coatings

This International Standard specifies minimum thickness requirements for six classes of zinc diffusion layers applied to ferrous products by the sherardizing process for the purpose of protection against corrosion and wear.

This International Standard does not specify any requirements for the surface condition (finish or roughness) of the basis material before sherardizing.

Post-treatments (conversion coatings), after-treatments or organic over-coatings (Duplex) of sherardized articles are not in the scope of this International Standard.

NOTE 1

For general information about post-treatments, see Annex C and Annex D.

This International Standard does not apply to sherardized products (e.g. fasteners, tubes) for which specific standards exist and which might include additional requirements or requirements which are different from those of this International Standard.

NOTE 2

Individual product standards can incorporate this International Standard for the coating by quoting its number, or can incorporate it with modification specific to the product.