×
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!

*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

Induction Hot Bending of P91 class pipe material and N & T

Induction Hot Bending of P91 class pipe material and N & T

Induction Hot Bending of P91 class pipe material and N & T

(OP)
Dear Sir/Madam,

We are making P91 material piping for high pressure & temperature steam applications in super critical boilers.

For this, we take induction pipe bending process and then do Normalizing & Tempering heat treatment operations.
Our question is, whether it is allowed to use GREASE for measuring the pipe wall thickness using the D meter, on the hot bent P91 Pipe before the Normalizing & Tempering heat treatment operations.

It seems that no hydro-carbon based materials should not have contact with the P91 Pipe surface (after the induction bending operation) but before the N & T.. due to the metallurgical reasons .

Please clarify with technical literature support.

R Subbarayalu

RE: Induction Hot Bending of P91 class pipe material and N & T

Quote (It seems that no hydro-carbon based materials should not have contact with the P91 Pipe surface (after the induction bending operation) but before the N & T.. due to the metallurgical reasons .)


Is this in your company's quality manual?

DHURJATI SEN


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! Already a Member? Login


Resources

Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close