Alloy 20 Velocity Corrosion in Sulfuric Acid

[danhuang7]

Hi Everyone,
I am doing a reserch on Alloy20 for Sulfuric Acid 90%-100% at ambient temperature. I could not find much information on the velocity corrosion rate for Alloy 20. I was wondering where can I get some data on that? Also, how does alloy 20 resist to corrosion? Is there a nickle film at the pipe interior? Is it vulnerable to disturbance? Thank you.

 

[EdStainless]

A SS will not be very sensitive to velocity since they rely on a chromium oxide passive film. Steels, cast iron, and lead have soft surface films of corrosion product that are soft and may wash off.


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Plymouth Tube

 

[metengr]

Go here for necessary information with links;

http://www.sulphuric-acid.com/Sulphuric-Acid-on-the-Web/home.htm

http://www2.dupont.com/Sulfur_Techn...nloads/Equipment_FAQs_Sulfur_Technologies.pdf