Pickling Bath for Stainless Steel S32304 (Duplex) 2

[debut78]

Hi there,

I have a question for about pickling bath for a stainless steel duplex! I know that the solutions of nitric (HNO3) and hydrofluoric (HF) acids are used but i have a doubt about the % of each that must be used! i searched the web and i found some information but isn't enough explicit to begin with the process! Also because of the type of steel and the conditions of the bath, is there someone with experience in this process that could help me?

Thanks!

 

[debut78]

so, they can be added with the N+HF acids in the pickling bath?

 

[EdStainless]

No, it is a separate process.

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Still trying to help you stop corrosion.
formerly Trent Tube, now Plymouth Tube
eblessman@plymouth.com
or edstainless@earthlink.net

 

[debut78]

ok. i thought that could be mixed with the bath! Can you arrange please the source for the chemical brightening solutions?

 

[limey1]

Interesting and timely info. Im looking to agitate bundles of stainless tubing in pickling tanks, and Im wondering how to come up with a robust process that will survive in such a harsh enviroment.