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topic 17946

Corrosion appears on SS303 after nickel plating


2002

We are plating components mad out of Stainless steel 303 grade. After nickel plating we find the corrosive marks on the components. We plate gold over Nickel. We tried Electroless nickel also , but no use. Can any body suggest a good cleaning method / plating to overcome this issue.

Thanks and regards,

Shanmugam
- Chennai.India


simultaneous 2002

Shanmugan,

The corrosion after nickel plating is more often from dirty rinses after nickel plating and a bad drying. How much nickel thickness did you have on the part? If you use a EN solution the corrosion resistant will be lower if you use hydrochloric acid in the pretreatment step. All pretreatments steps must follow wiht clean rinses to get the best corrosion protection.

Regards,

anders sundman
Anders Sundman
3rd Generation in Plating
Consultant - Arvika, Sweden



2002

1:Use a heavy duty alkaline soak cleaner
2:Periodic reverse treat in cyanide electrocleaner
3:Woods nickel strike 50 ASF 30-60 Seconds
4:Nickel plate

Russell Richter
- Danbury, Connecticut, USA


2002

Dear Mr.Russell Richter,

Thanks for the suggestion. It really works.

With Kind Regards,

Shanmugam
- Chennai, India



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