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.

Jobs

ASME B31.3 Normal Fluid Service 5% Random Radiography Individual or Total 5%

ASME B31.3 Normal Fluid Service 5% Random Radiography Individual or Total 5%

(OP)
Morning Folks,

The question: When B31.3 states no less than 5% of circumferential butt and miter groove welds shall be examined (ref. ASME B31.3 2014 341.4.1 (b)), it says each welder's work product must be represented (ref. ASME B31.3 2014 341.4.1 (b)). Does this mean 5% of each welder's work product in a lot needs radiography or 5% of the total lot with each welder represented i.e. Stan, and Dirk each produce 40 welds in a lot for a total of 80 welds. Can you x-ray 3 of Stan's welds and only 1 of Dirks, or do you need to x-ray 2 of Stan's and 2 of Dirk's to be compliant?

I have a ton of gray area B31.3 questions but we'll stop here for today!

Thanks

RE: ASME B31.3 Normal Fluid Service 5% Random Radiography Individual or Total 5%

Each welder must be represented in the 5%....not 5% of each welder.

RE: ASME B31.3 Normal Fluid Service 5% Random Radiography Individual or Total 5%

Agree with David.

Quote (D_Jones)

Can you x-ray 3 of Stan's welds and only 1 of Dirks, or do you need to x-ray 2 of Stan's and 2 of Dirk's to be compliant?

Both scenarios will work, although the latter would not be a requirement.

RE: ASME B31.3 Normal Fluid Service 5% Random Radiography Individual or Total 5%

As per Davids response

Interpretation: 1ยท27
Subject: Random Radiography in 336.5.1(b)
Date Issued: October 10, 1980
File: 1489
Question (1): Is it the intent of 336.5.1(b) that. in addition to the required radiography of 5% of
circumferential buttwelds for a designated lot of piping, a minimum of 5% of each welder's welds be also
radiographed?
Reply (1): No. It is the opinion of the Committee that it is the intent of the Code that each welder's
work be included in the 5% examination required in 336.5.1(b). It is not the intent to require examination
of 5% of each welder's work.

RE: ASME B31.3 Normal Fluid Service 5% Random Radiography Individual or Total 5%

(OP)
Thanks for the speedy reply guys! Very helpful

RE: ASME B31.3 Normal Fluid Service 5% Random Radiography Individual or Total 5%

But do beware of Owner requirements which often mandate 5% of each welder.

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


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