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Corrosion resistance of Brass

Corrosion resistance of Brass

Corrosion resistance of Brass

(OP)
Does anyone know how yellow brass will hold up to phosphoric acid? I don't have that extensive of books which has that kind of information. Any help would be appreciated.

RE: Corrosion resistance of Brass

In general, the following materials, Al , cast iron, steel, brass and ferritic and martensitic stainless steel exhibit poor corrosion resistance in phosphoric acid.

To be specific for 70-30 brass corrosion rate at 70 F 100% corrosive medium of phosphoric acid the corrosion rate is > 0.05 mpy (mil per year) which is very poor and unacceptable in metallurgical sense.

Type 316 austenitic Stainless steel will be a choice for phosphoric acid environment . It can be used up to 85%conc. and temperature up to boiling point with little attack.


Regards,
Surin Tan

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