×
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

SA240 409 S/S spec change

SA240 409 S/S spec change

SA240 409 S/S spec change

(OP)
Hi,

The latest version of SA240 now specifies that 409 S/S is obsolete and replaced with 40910, 40920 or 40930.  The differences between them being different amounts of Ti and Cb.  The mill can provide either of these standards when 409 S/S is order under the A240 specification.

Has anyone investigated the benefits offered by the different types.  I suspect benefits are in formability and corrosion resistance.

Thanks,

RE: SA240 409 S/S spec change

I would also hazard a guess that the Ti and Cb stabilize the alloy also.

RE: SA240 409 S/S spec change

The various mfg and users of 409 in automotive exhaust would like you to believe that the different stablizations have different impacts on the weldability/formability/corrosion resistance.
Let's just say that I am a skeptic, since swearing would be very unprofessional.
Stabilized 409 is good, how they do it really doesn't matter.
 

= = = = = = = = = = = = = = = = = = = =
Corrosion, every where, all the time.
Manage it or it will manage you.
http://www.trent-tube.com/contact/Tech_Assist.cfm

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