×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Pipe Materials

Pipe Materials

Pipe Materials

(OP)
Does anyone know where I can locate a chart for metals to be used in wasterwater.  In particular, I want a comparison of 304 versus 316 stainless.  I'm look for properties such as corrosion & erosion charicteristic and alternate material. I've searched the internet and haven't found a site listing 304 SS and wastewater.

RE: Pipe Materials

Try Googling the Water Pollution Control Federation (WPCF) in the U.S. Also look at any information from the US EPA and from Stainless Steel suppliers in your area. I have some info but it is quite old.

Good luck

RE: Pipe Materials

I suspect this may well be one of those "it depends" type questions (it depends on the specific exposure conditions) -- some sewer environments might not cause failures of stainless steel (or for that matter concrete or other steel/iron?), whereas some might be problematic to these and many other materials, if unprotected.  You may be interested in the matrix on Page 2 at http://www.hrwallingford.co.uk/projects/SEWER/sewer_home/S5D4.pdf, and the information linked to with the "Related Articles" links at http://www.wwdmag.com/Microbiological-Corrosion-in-Municipal-Water-Treatment-Plant-Piping-article700.   

RE: Pipe Materials

Try posting on the "steel and Stainless Engineering" forum.

RE: Pipe Materials

I have found that 304 will show quite  abit of pitting in a humid environment, or if there are chlorides present. Much of the integrity of the system has to do with the quality of the field welds, whether or not they were pickled and passivated properly, cleaned, and the type of brush used.  That may actually be more of a factor than the type of material used.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources