×
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

Super Duplex Interpass Temperature

Super Duplex Interpass Temperature

Super Duplex Interpass Temperature

(OP)
I have recently been advised that an interpass temperature for welding super duplex stainless steel should be limited to 100C. All the texts I have read advise 150C. Apparerntly better weld control is achievable.

Comments?

Geoffrey D Stone FIMechE C.Eng;FIEAust CP Eng
www.waterhammer.bigblog.com.au

RE: Super Duplex Interpass Temperature

stanier;
The current information I have from various superduplex stainless steel suppliers still recommend a maximum of 150 deg C. Someone may have decided to impose a more conservative interpass temperature requirement to assure remaining below 150 deg C. If anything, I would use 120 deg C maximum interpass temperature to assure remaining below 150 deg C.

RE: Super Duplex Interpass Temperature

If you look at curves that show time/temp for secondary phase formation you will understand why some people push to keep the temp as low as possible.
120C is a reasonable limit.

= = = = = = = = = = = = = = = = = = = =
Still trying to help you stop corrosion.
formerly Trent Tube, now Plymouth Tube
eblessman@plymouth.com
or edstainless@earthlink.net

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