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passivation of SS sheet

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livehho

Electrical
Joined
Aug 28, 2008
Messages
4
Location
US
Hi all,

You normally use nitric acid or citric acid to passivate stainless steel. BUT, I was told that you can also use Vinegar.

Is this true? If so, how it's done?

Thanks a lot
 
I already have..


but thx anyway
 
If it isn't listed there then it doesn't meet the official requirements. Not that it might not work, but you would taking the risk.
There are many options listed. Why wouldn't you use one of them?
You need to use an oxidizing acidic solution to passivate. You are trying to dissolve free iron from the surface. Assisting formation of a uniform and robust chrome oxide passive surface film is a secondary issue. I could do that with hydrogen peroxide, but it wouldn't remove any iron.

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Plymouth Tube
 
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