Description / Abstract:
This standard covers requirements for several types and grades
of electrodeposited nickel/chromium coatings on ferrous or copper
alloy basis metals and copper/nickel/chromium on zinc or aluminum
alloys for the finishing and corrosion protection of decorative
ornamentation and hardware of motor vehicles and marine controls
and fittings. Four grades of coatings are provided to correlate
with the service conditions under which each is expected to provide
satisfactory performance, namely: very severe, severe, moderate,
and mild. Definitions and typical examples of these service
conditions are provided in Appendix A.1 Information
contained in this document generally conforms to the information
contained in ASTM B 456, Specification for Electrodeposited
Coatings of Nickel plus Chromium.
1. It is recognized that uses exist in which either thicker or
thinner coatings than those covered by these specifications may be
required. In such cases, the particular thickness desired by the
purchaser (minimum, maximum, or range of thickness permissible)
should be the subject of agreement between the purchaser and the
plater.