GMW 14672:2022

GMW 14672:2022

Minimum Plating Structure and Performance Requirements for Decorative Chromium Plated Metallic Parts

€45.15

Details

Plating to this specification is subdivided into three performance classes:



• Class A: Exterior components with severe service conditions, likely to include damage from denting, scratching, and abrasive wear, such as those encountered by automotive bumpers and assist steps.



• Class B: Exterior components without stone-chipping exposure or other mechanical abuse, such as door handles or emblems (not on the front of the vehicle).



• Class C: Interior components.



For exterior applications, discontinuous chromium plate (microporous (mp) or microcracked (mc)) in addition to a multiple layer nickel system shall be used.



For interior applications, a continuous chrome layer (r) is permissible. The use of discontinuous chromium or multiple-layer nickel systems is not required for interior components.



Plating per this specification is intended for use over metallic substrates, plating on plastics is specified in GMW14668. For plating of stainless substrates, see GMW15613.

Additional Info

Author General Motors Worldwide (GMW)
Published by GM
Document type Standard
Edition 5
ICS 43 : Road vehicles engineering
Number of pages 16
Replace GMW14672:2016