×
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

Tube to tubesheet of QW-193 request

Tube to tubesheet of QW-193 request

Tube to tubesheet of QW-193 request

(OP)
Actually situation tube to tubesheet shape
tube side 25.4 od and 2.6 thickness
tubesheet 40 thickness
all material is P no. 1
tube hole pitch 32 triangle
only fillet welding for tube to tubesheet and leg size 2mm.
tube hole with 2 grooves and expansion after welding
Perform QW-193 mockup test is required by client.

As caption subject,
QW-288 is tube-to-tubesheet quanification essential variables required by code,
is there any request the test piece (tubesheet) thickness to be following up ?
I mean, if I perform the QW-193 mockup test, what's thickness for tubesheet test piece does need ?

Other questions, for QW-288.1(p) , shall we follow up the same shape as actually tube hole (2 groove and expansion)
into test piece, or no need ?

RE: Tube to tubesheet of QW-193 request

First, you need to determine the construction code for the tube to tubesheet design.
Next, you follow Section IX requirements, which means the coupon should be identical to the production tube to tubesheet weld joint - simulating tubesheet thickness and tube OD and wall thickness.

RE: Tube to tubesheet of QW-193 request

(OP)
Thank you Metengr.

Other question,

The QW-193 mock-up had been required by client.
If I follow up the QW-288 essential variables,
shall I also follow up general GTAW QW-256 essential variables ?

RE: Tube to tubesheet of QW-193 request

Yes.

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