Material choice for acetic acid dilute solution

[vinxenso]

Hi,

I need to know what will be the best material choice for tank and pipe containing a dilute acetic acid solution in water(0.1 % in weight)at 35 ºC (pH =3.3). Will be suitable stainless steel 304?, is a suicidal the use of mild carbon steel with a corrosion allowance?

And for pipe containing the same fluid at 100 ºC?.

Thank's and sorry for my english.

Best regards.

 

[EdStainless]

How pure is the solution? What are likely contaminates?
Don't use Al or carbon steel.
304L or 316L selection will depend on purity and temp.

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Corrosion never sleeps, but it can be managed.

http://www.trenttube.com/Trent/tech_form.htm

 

[vinxenso]

EdStainless,

Thank you for your quick answer.

The solution is very diluted, 0.1 % acetic acid in water and the only contaminants are methanol (6 ppm) and dissolved oxygen.

The temperature is 35 ºC for pipe and tank, and 100 ºC for another pipe.