NOTICE

Forums are temporarily disabled while we are working on a new login procedure.

When migrating the old forums over to our new forums we were unable to retain the identity of the authors, so the old posts will show up as "anonymous". All NEW posts will show up credited to their authors. So please participate and share knowledge just as you have in the past.

You must log in if you are an existing user or register if you are a new user in order to contribute to the discussions.

Discussion Forums - The Hendrix Group
HomeHomeDiscussionsDiscussionsGeneral Corrosi...General Corrosi...STAINLESS STEEL "RED STAINING"STAINLESS STEEL "RED STAINING"
Previous
 
Next
New Post
4/16/2003 9:00 AM
 
User is offline 
No Ranking

Joined: 1/1/0001
Posts: 0
I am investigatiing the source of iron in our reactor coolant system (nuclear power plant). Our reactor coolant system is made out of austnitic stainless steel piping and components (or other corrosion resistent materials). however we still see approximately 7-14 ppb of iron in the process fluid. The fluid see's temperature changes of 550-100 F and is in a 1000 ppm boric acid solution. We have noticed that a few of our components (centrifugal pumps and diaphram valves) have red staining on their internals. Could this be due to a process called "rouging". Also how could I figure out under the above conditions what a normal corrosion rate is for stainless steel
 
New Post
4/17/2003 9:00 AM
 
User is offline 
No Ranking

Joined: 1/1/0001
Posts: 0
Dear Sir: We can't offer an opinion on the source of your red staining without additional knowledge of your cooling system circuit conditions and materials of construction. However, you might consider in-situ corrosion coupon tests, or better still, controlled laboratory corrosion coupon exposures. Hope this helps! David Hendrix The Hendrix Group Inc.
 
 Page 1 of 1
Previous
 
Next
HomeHomeDiscussionsDiscussionsGeneral Corrosi...General Corrosi...STAINLESS STEEL "RED STAINING"STAINLESS STEEL "RED STAINING"


  

News

NEW! Calculation of Ammonium Salt Deposition Temperatures
With a little delay, our Calculation of Ammonium Salt Deposition Temperatures...read more
Sulfidic corrosion calculators NOW AVAILABLE
Our sulfidic corrosion calculators are now available at hghouston.com/calcula...read more

Stay Current

Sign up for our quarterly newsletter

covering updates on corrosion

Sign Up