×
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

Is API 1104 and ASME IX "either/or" welding codes for ASME B 31

Is API 1104 and ASME IX "either/or" welding codes for ASME B 31

Is API 1104 and ASME IX "either/or" welding codes for ASME B 31

(OP)
Hello,
for pressure piping ASME B31.4 and 31.8 for liquid and gas transmission lines, the welding section always refer to both ASME IX or API 1104, I have welding procedures that are used for ASME B31.3, 31.4, and 31.8, my question is:

Is ASME IX more appropriate for the ASME B31 pressure piping applications or API 1104 or is it which ever one you choose?

I feel like I chose ASME IX because it's more stringent or restrictive to many parts of the B31 codes.

Thank you.

RE: Is API 1104 and ASME IX "either/or" welding codes for ASME B 31

Both ASME IX and API 1104 may be used for B31.4 qnd B31.8 pipe systems. Owner's, with whose pipelines I have been associated, have specified both for over 30 years.   In some cases welders must be qualified per API 1104. In both Codes production weld acceptance is per API 1104.  

RE: Is API 1104 and ASME IX "either/or" welding codes for ASME B 31

(OP)
Thanks Stanweld,
so in my case, most of the facilities are B31.3, but any gas or liquid transmission lines fall inside the production pad we also classified under B31.3, we have very few gathering lines outside well pads that fall under B31.4 and 31.8.
So:
If all the procedures for the B31.3, 31.4, 31.8 are all ASME IX, and the welders' are also qualified per SEction IX, that is also okay right? without having anything to do with API 1104?

Thanks.

RE: Is API 1104 and ASME IX "either/or" welding codes for ASME B 31

The welders will need to be qualified in accordance with the relevant code for which the procedures were qualified.  In-service welding (welding under pressure or with product in the pipe) will have to be done to API 1104 Appendix B requirements.  Otherwise, ASME IX is acceptable.

RE: Is API 1104 and ASME IX "either/or" welding codes for ASME B 31

(OP)
Thanks,
this will not be in-service welding, they'll constructoin of the production piping before productioin commences, or to add to existing facility, basically, fluids will be transported through the pipe after the welding activity

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