[MW:5147] PQR tests for tube to tube-sheet strenght weld joint - ASME sez.VIII div.1

[federico.29]

Dear sirs,
according to ASME sez.VIII div.1, which tests are required to perform
in PQR for a tube to tube-sheet strenght weld joint? in particular
tear test is required?
(please give me the reference of para of ASME sez.VIII div.1)
material involved is Carbon Steel: A350 (tube-sheet) and A334 (tube)
welding process is GTAW machine
thickness involved: 70 mm (tube-sheet) and 2.77 mm (tube)
Thank in advance
Fede Lau

--
To post to this group, send email to material...@googlegroups.com
To unsubscribe from this group, send email to materials-weld...@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

[Bathula Raghuram (Mumbai - PIPING)]

When a weld meets the requirements of UW20.4, it is a full strength weld and does not require qualification by shear load testing. You can use a normal groove weld PQR and state on WPS joint configuration as shown in fig UW 20.1.

However Tube to tube sheet strength weld mock up qualification may required if called in contract specifications, in this case you may have to qualify PQR as per QW193

-----Original Message-----
From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of federico.29
Sent: Wednesday, May 12, 2010 3:05 AM
To: Materials & Welding
Subject: [MW:5147] PQR tests for tube to tube-sheet strenght weld joint - ASME sez.VIII div.1

Dear sirs,
according to ASME sez.VIII div.1, which tests are required to perform in PQR for a tube to tube-sheet strenght weld joint? in particular tear test is required?
(please give me the reference of para of ASME sez.VIII div.1) material involved is Carbon Steel: A350 (tube-sheet) and A334 (tube) welding process is GTAW machine thickness involved: 70 mm (tube-sheet) and 2.77 mm (tube) Thank in advance Fede Lau

Filtered by Hosted Filtering

[bo gyi]

As per ASME IX,

only PT & macro etch is required (QW-193). Tear test & strength test
are required by EEMUA publication 143. Sometime client calls those
tests.



On May 12, 12:22 pm, "Bathula Raghuram (Mumbai - PIPING)"

<R.Bath...@ticb.com> wrote:
> When a weld meets the requirements of UW20.4, it is a full strength weld and does not require qualification by shear load testing. You can use a normal groove weld PQR and state on WPS joint configuration as shown in fig UW 20.1.
>
> However Tube to tube sheet strength weld mock up qualification may required if called in contract specifications, in this case you may have to qualify PQR as per QW193
>
> -----Original Message-----
> From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of federico.29
> Sent: Wednesday, May 12, 2010 3:05 AM
> To: Materials & Welding
> Subject: [MW:5147] PQR tests for tube to tube-sheet strenght weld joint - ASME sez.VIII div.1
>
> Dear sirs,
> according to ASME sez.VIII div.1, which tests are required to perform in PQR for a tube to tube-sheet strenght weld joint? in particular tear test is required?
> (please give me the reference of para of ASME sez.VIII div.1) material involved is Carbon Steel: A350 (tube-sheet) and A334 (tube) welding process is GTAW machine thickness involved: 70 mm (tube-sheet) and 2.77 mm (tube) Thank in advance Fede Lau
>
> Filtered by Hosted Filtering
>
> --
> To post to this group, send email to material...@googlegroups.com
> To unsubscribe from this group, send email to materials-weld...@googlegroups.com

> For more options, visit this group's bolg athttp://materials-welding.blogspot.com/

[atul chaturvedi]

you have to follow TEMA for heat exchanger and accordingly do the Pull-out

test.

[Federico]

Thank you Atul, please give me the reference of the para of TEMA ed. 9th, which requires Pull-out test.

Thanks a lot.

Fede