Black Zinc Plating Specifications

The plating conformingto this specification is intended to facillitate the formation of a sealbetween two metallic surfaces.

Black zinc plating specifications.

Specifications called for a black zinc coating to be applied to this part which featured dimensions of 7 in diameter 1 in thickness and a weight of 12 lbs. Black zinc as part of zinc plating different types of zinc plating. Black zinc plating is a metal finish that is commonly used to provide the underlying element with additional protection from corrosion. Choose between acid or alkaline zinc plating options.

Mostly a decorative coating. Astm b633 sc1 type iii plus a lubricated topcoat scope this specification covers electrodeposited zinc coatings as applied to steel copper brass and bronze parts to protect them from corrosion. Zinc plating is a soft ductile solderable corrosion resistance finish and it is used in order to protect the substrate. Steel parts requiring embrittlement relief after plating are baked according to industry.

Kc jones plates zinc to the following specifications. Plating hardness not to exceed 150 knoophardness 500gm. Threaded features benefit from zinc plating because of its anti galling characteristics. Bright zinc plating closely resembles bright.

Black zinc plating is also a popular metal finish thanks to the striking appearance of the finished. Zinc plating with chromate can also be used to improve adhesion of secondary paint operations. A uniform black coating for ferrousmetals. The zinc layer acts as a sacrificial barrier preventing damage from occurring to the underlying structure.

Thus hardness can range from 150 1500 vickers. In the automotive industry black trivalent zinc passivate is widely used for part protection and finish. Plating specifications general information page 13 reference only april 2018 nickel qq n 290 coating for steel copper copper alloys zinc and zinc alloys. This final step helps to ensure proper black zinc plating specifications were met.

Zinc plating with black chromate offers better corrosion resistance and anti galling characteristics than black oxide. Can be similar in color to. Our automated rack and barrel line capabilities combined with our proprietary chemistry make our black trivalent passivate and hexavalent chromate conversion coating optimal for industries including but not limited to. Automotive manufacturers like nissan and honda have a list of specifications that fall under different plating processes such as zinc plating zinc nickel plating stainless steel passivation and others.

Zinc plus clear trivalent chromate plus sealant lubricant part suffix lz. The most important purpose of zinc plating in terms of functional characteristics is to protect metals from corrosion effects or rust.