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Coatings on metal fasteners. Specification for sherardized coatings by British Standards Institute Staff is a reference work available to read on EtoBox.

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This standard BS 7371-8:2011 Coatings on metal fasteners is classified in these ICS categories:. 21.060.01 Fasteners in general. 25.220.40 Metallic coatings. This part of BS 7371 specifies requirements for sherardized coatings on iron and steel fasteners and accessories applied by thermal diffusion of zinc powder onto a component’s surface. NOTE Hydrogen embrittlement is not induced as a result of this coating process. The coating consists of zinc/iron alloys, which are subsequently treated using either a zinc phosphate treatment (see BS 7371-9:1996, Type 2) or a suitable substitute treatment similar to those used in electroplating zinc (see BS 7371-3:2009) and mechanical plating (see BS 7371-7:2010). This results in a dust free surface, which, when required, can be lubricated to give controlled torque/clamping force properties (see BS 7371-2:1993). In addition to the requirements in this part of BS 7371, the requirements in BS 7371-1:2009 that are applicable to sherardized coatings apply. This part of BS 7371 also specifies requirements for:. the local coating thickness for six grades of coating;. possible types of post treatment;. the assessment of corrosion resistance of unused

Who reads Coatings on metal fasteners. Specification for sherardized coatings?

Author

British Standards Institute Staff

Publisher

BSI British Standards Institution

Published

2011

Language

EN

ISBN

9780580716102

Category

reference