Link to spec at techstreet that states you should get at least 24 hrs to white corrosion from a single dip clear blue brite chromate in a salt spray cabinet.
Zinc yellow chromate plating specifications.
Zinc plating plus yellow chromate coating on steel sae j81 zinc plate and yellow zinc dichromate coating to meet ford wsb m10p10 a3 and wsd m1p85 a2 on aisi 12l14.
90040 plating specifications for nickel chrome zinc we at valley plating works inc feel that customer satisfaction is our number one priority.
Specs for chromate zinc coatings 2002 q.
The majority of the work performed at glmf is plated to a customer s individual zinc or zinc nickel plating specifications.
Glmf specializes in trivalent passivation for zinc and yellow zinc and clear zinc and black zinc and olive drab zinc nickel stainless steel passivation and other finishing processes to meet our customer s specifications.
Zinc plus yellow hexavalent free chromate part suffix zc.
I believe it is astm b201 80 affil.
Coatings shall be continuous free from.
Specifications thickness comments qq n 290a class 1 grade e class 1 grade f class 1 grade g 0006 min 0004 min 0002 min.
Yellow can be used as is or as a paint base.
Astm b633 sc1 type ii scope this specification covers electrodeposited zinc coatings as applied to steel copper brass and bronze parts to protect them from corrosion.
If you were specifying zinc with clear chromate you would have to specify type i.
Yellow chromate should get 96 hrs to failure.
Trivalent yellow meets automotive and rohs specifications.
Type ii refers to a colored yellow olive drab chromate.
Springs having a hardness over rc 40 must be given anafter plating baking of 375 25 f for 3 hours.
Color can vary from colorless to iridescent yellow brown.
Specifically for the following coatings.
Valley plating works inc.
No matter the plating thickness bake cycle chromate or salt spray requirement glmf will deliver exactly what is required to meet your specifications.
We also currently do hexavalent and trivalent yellow zinc plating.
As a rule the darker the chromate the more corrosion resistant the finish with the same amount of plated thickness.
We offer many plating methods for various industries and offer the best available technology while reducing excessive.
I am in need of as much information as i can get about the chemical composition of coatings.
Steel parts requiring embrittlement relief after plating are baked according to industry standards.
Zinc should be deposited directly on the base metal nickelis permissible undercoat if base metal is a corrosion resisting steel parts having a hardness greater that rc 40 must be given a heat treatmentprior to plating.
