Stainless Steel 316 vs Alum solution

[Mecanikawy]

Hello Everybody,

In my project , we are using a C channel made of SS 316 ,
this channel is installed in a mixer concrete wall, and immersed in Solution of Water,Alum,Chlorine ...

It is a water pre-chlorination.

After a while , we found that the C channel is very rusty .
Has anyone has any idea about what happened, and how we are supposed to repair it , or what is the coating we are supposed to use..??

Waiting for your replies..
Thanks in advance

Assem

 

[unclesyd]

One word Chlorine.
Come back with a little more specifics as to concentration, temperature, and such.

 

[mcguire]

The Outokumpu web site has an excellent corrosion guide. It may help.
I believe there is a great deal of difference between chlorine dissolved in water and chlorides in water. Which do you have?

Michael McGuire

http://stainlesssteelforengineers.blogspot.com/