High purity water corrosion of Stainless
High purity water corrosion of Stainless
(OP)
Does molybdate or nitrate have any corosion protection of stainless in a cooling water loop? If so, is one better than the other? Does anyone know of any good links for the corrosion protection of stainless?





RE: High purity water corrosion of Stainless
High purity water doesn't (as far as I know) corrode stainless steel; the SS surface remains passive.
Sodium nitrite NaNO2 and nitrite-molybdate solutions are used to protect common steel from corrosion due to chloride Cl-.
If you are experiencing corrosion of SS from cooling water, I think there must be some other factors. Describe the corrosion, whether general or crevice only, water composition & pH, whether open or closed system, other metals used in the system, etc.
RE: High purity water corrosion of Stainless
There are hundreds of technical papers on the corrosion in nuclear power plants that address this issue.
= = = = = = = = = = = = = = = = = = = =
Corrosion, every where, all the time.
Manage it or it will manage you.
http://www.trent-tube.com/contact/Tech_Assist.cfm
RE: High purity water corrosion of Stainless
Cooling Water Treatment
thread164-135839
MIC prevention in stainless
thread338-136707
High iron content in chilled water loop
thread164-113363
Id25, please furnish the SS alloy(s), water temperature and chemistry.