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

Clarification of CVN test plate as per AWS D1.1 (2015) Clause No. 4.27.3.

Clarification of CVN test plate as per AWS D1.1 (2015) Clause No. 4.27.3.

(OP)
Clarification of CVN test assembly as per AWS D1.1 (2015) Clause No. 4.27.3.

Please assume all essential variables will be same unless otherwise specifically mentioned in the below statements.
I have an existing PQR (lets say PQR-001) for a plate CJP weld with a thickness of 20 mm for 2G, 3G and 4G without CVN test. The WPS (WPS-001) derived from this PQR is with a thickness limit of 3 mm to 40 mm and all positions where CVN test is not applicable. I have a plate CJP weld with a thickness of 12 mm need to be welded in all position (i.e 1G, 2G, 3G & 4G) and CVN requirement is applicable. Please advise which of the following is / are allowed by code in order to weld the above joint.

1. Weld a test assembly of thickness 12 mm(any thickness can be chosen which cover the thickness limit mentioned as per the supplementary essential variable) in 3G uphill position using the WPS-001 (derived from PQR-001) and carry out all the test required for a procedure qualification + CVN test (be considered PQR-002). Prepare a WPS with both supporting PQRs (PQR-001 and 002) covering a thickness range from 12mm to 24mm for all positions with CVN test applicable.
2. Weld as above and carry out CVN test only. Amend this test with PQR-001(Otherwise a separate report showing only CVN test and PQR-001) and prepare a WPS covering a thickness range from 12mm to 24mm for all positions with CVN test applicable.
3. Qualify as new PQR in 2G, 3G uphill AND 4G positions with a thickness of 12 mm CJP weld (any thickness can be chosen which cover the thickness limit mentioned as per the supplementary essential variable). Carry out all tests required for procedure qualification + CVN test in 3G uphill position.

If your answer to the above question is 3, does it mean that I cannot use the PQR-001 in whatsoever manner i.e, code doesn't permit

Regards,

ISHACK M

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