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...Galvanic CorrosionGalvanic Corrosion
Previous
 
Next
New Post
10/30/2002 9:00 AM
 
User is offline 
No Ranking

Joined: 1/1/0001
Posts: 0
Hi! I have several questions: would 304L will be galvanic corroded is welded to 316L? I have failed 304L, now I am looking for weldable-higher Ni Stainless Steel to improve the corrosion resistance, without causing/ being galvanic corroded by 304L. The material is one and a half inch spool pipe and the length 6 inch only. Thanks for helping this! CITA
 
New Post
10/30/2002 9:00 AM
 
User is offline 
No Ranking

Joined: 1/1/0001
Posts: 0
Sir: Please see our reply to the other post regarding galvanic corrosion of 304SS to 316SS. It is our opinion that electrically coupling 304SS to 316SS will not cause galvanic corrosion, based on their respective (close) electromotive potentials. David Hendrix The Hendrix Group Inc.
 
New Post
11/17/2002 9:00 AM
 
User is offline 
No Ranking

Joined: 1/1/0001
Posts: 0
Thanks Mr. Hendrix, How about 2205, 317L? Will they galvanic corrosion with 304L? I've been looking for a reference to identify the potensial electrode of various material specs. Do you have suggestion of the reference? Is NACE corrosion eng 's reference HB include that? Thanks. Cita
 
New Post
11/18/2002 9:00 AM
 
User is offline 
No Ranking

Joined: 1/1/0001
Posts: 0
Cita: 317SS will be close to 304SS in the galvanic series. Duplex SS will be slightly different, but I am not certain whether it would be anodic or cathodic. I suspect slightly cathodic as the ferrite phase in duplex SS is slightly cathodic to the austenite phase. Remember, the potential for galvanic corrosion depends not only on the galvanic couple, but the corrosivity and conductance of the aqueous environment. Hope this helps! David Hendrix The Hendrix Group Inc.
 
 Page 1 of 1
Previous
 
Next
HomeHomeDiscussionsDiscussionsGeneral Corrosi...General Corrosi...Galvanic CorrosionGalvanic Corrosion


  

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