×
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

Pipeline PWHT

Pipeline PWHT

Pipeline PWHT

(OP)
I Have to weld two pipelines of 7km length according to API 1104 that designed to transport gas from well to the plant

Design Code is ASME B31.8
Material API X60 12" X 34mm
Material API X60 6" X 21.6 mm
Design Temperature -5/100 C

Which line to be PWHT

RE: Pipeline PWHT

ASME B31.8 requires PWHT for carbon steels when the thickness is greater than 1-1/4 inches (825.2)or if the carbon content exceeds 0.32% or carbon equivalent (CE) is greater than 0.65% (825.1).

RE: Pipeline PWHT

(OP)
Bimr
Thanks for your reply
Another issue :
Mechanical tests for PQR for the above pipelines will be according to ASME IX or API 1104

RE: Pipeline PWHT

API 1104 is for pipelines.

RE: Pipeline PWHT

(OP)



Please see sec 823.21 AS ME B31.8
It give the tow options AS ME IX and API104

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