×
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

Differance between B31.1 and Sec. 8

Differance between B31.1 and Sec. 8

Differance between B31.1 and Sec. 8

(OP)
I have a customer that wants B31.1 and a fabricator that is Sec. 8.  On the surface they appear to be one and the same but I don't know.

Is there a real differance between these 2 codes and what are they?

Thank you,

StW

RE: Differance between B31.1 and Sec. 8

They are different. B31.1 is a Code pertaining to Power Piping, while ASME B&PV Code, Section VIII is applicable to unfired pressure vessels. You really need to review the Scope for Section VIII and B31.1.

RE: Differance between B31.1 and Sec. 8

The fabricator which holds a U Certificate of Authorization from the ASME may perform nonboiler external piping fabrication to B31.1. It may not perform ASME B31.1 boiler external pipe welding fabrication.

 

RE: Differance between B31.1 and Sec. 8

There are many differences between VIII-1 & B31.1:
-B31.1 is closer to B31.3 than VIII-1, as befits the component being designed and fabricated.
-Calculation equations are different (such as shells)
-Material allowable stresses are a bit different.
-Inspection requirements differ

to name a few.  

RE: Differance between B31.1 and Sec. 8

StW...

What, exactly, is the scope of your cutomer's work..???

Is it piping...presure vessels....boilers or what ?

You state: "On the surface they appear to be one and the same but I don't know"

Have you actually reviewed these standards ?

-MJC

   

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