salt corrosion resistance of 17-4 PH
salt corrosion resistance of 17-4 PH
(OP)
I’m looking for some information on the salt corrosion resistance of 17-4 PH.
If there is no other scale of comparison how does it compare to 316 (I know 316 is better but how much better)
If there is no other scale of comparison how does it compare to 316 (I know 316 is better but how much better)





RE: salt corrosion resistance of 17-4 PH
In general, I consider 17-4PH to be a 17% Cr grade (like 304, 430 or 439) in terms of Cl resistance. For constant Cl concnetration and pH, Assuming htat we are near neutral and near ambiant) the pitting limit on 361 will be about 50F higher than for a 17% Cr grade.
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RE: salt corrosion resistance of 17-4 PH
RE: salt corrosion resistance of 17-4 PH
RE: salt corrosion resistance of 17-4 PH
I have also used 17/4 for the following components exposed to warm sea water.
Rudder shafts, with zinc anodes
Rubber gear pump shafts
Fishing reel components, both commercial and personal.
Chain plates on older boats.
Anchor components.
There is a good galvanic table the PH alloys in the "shafting data brochure" on this site.
http://www.wbmetals.com/
RE: salt corrosion resistance of 17-4 PH
= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection
http://www.trent-tube.com/contact/Tech_Assist.cfm