×
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

Preheat different thickness according to ASME

Preheat different thickness according to ASME

Preheat different thickness according to ASME

(OP)
Hi, I would like to know what are tinkling about preheat 2 different thickness according to ASME section IX.

If I want to weld, for example, A516 gr 70 with one part 20 mm with 60 mm, I think we need to consider the thicker part for the preheating but in ASME section IX no specification about this.

What are you thinking?

I'm right?

Thank,

Louis

RE: Preheat different thickness according to ASME

You are absolutely correct regarding preheat - the thicker material at the weld joint should be the guide for temperature and hold time.

RE: Preheat different thickness according to ASME

(OP)
Thank you for your answer but I looking forward an ASME interpretation if it's possible because I have a supplier that he don't understand my explanation about this issue. Our contract is based on ASME section VIII div. 1 and section IX.

If you have something about ASME explanation I will appreciate.

Thank

RE: Preheat different thickness according to ASME

LouisLac;
The Code considers preheat as mandatory only when looking at exemptions for PWHT. Please review Nonmandatory
Appendix   R   "Preheating". In the Introduction and for specific material groups the recommended preheat is based on chemical composition and material thickness, which means thicker materials would require preheat.

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