Zinc Yellow Chromate Plating Specifications

Type iii refers to a clear blue brite chromate passivate.

Zinc yellow chromate plating specifications. Springs having a hardness over rc 40 must be given anafter plating baking of 375 25 f for 3 hours. As a rule the darker the chromate the more corrosion resistant the finish with the same amount of plated thickness. We also currently do hexavalent and trivalent yellow zinc plating. I am in need of as much information as i can get about the chemical composition of coatings.

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. 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. 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. Color can vary from colorless to iridescent yellow brown.

Specifically for the following coatings. Yellow chromate should get 96 hrs to failure. No matter the plating thickness bake cycle chromate or salt spray requirement glmf will deliver exactly what is required to meet your specifications. Type ii refers to a colored yellow olive drab chromate.

I believe it is astm b201 80 affil. Specs for chromate zinc coatings 2002 q. 90040 plating specifications for nickel chrome zinc we at valley plating works inc feel that customer satisfaction is our number one priority. We offer many plating methods for various industries and offer the best available technology while reducing excessive.

Yes zinc and yellow dichromate per astm b633 type ii fe zn 12 is a good way to specify plating on a part print type ii is for colored chromates like zinc yellow. Coatings shall be continuous free from. Valley plating works inc. Plating specifications general information page 8 reference only april 2018 chemical film chromate mil c 5541 coatings for aluminum zinc silver and cadmium.

Zinc plus yellow hexavalent free chromate part suffix zc. Trivalent yellow meets automotive and rohs specifications. The majority of the work performed at glmf is plated to a customer s individual zinc or zinc nickel 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.

Steel parts requiring embrittlement relief after plating are baked according to industry standards. Yellow can be used as is or as a paint base.