Use of ASME IX WPS for Dissimilar Thickness of More than Range of Groove Weld Thickness Qualified?

[Tariq Hussain]

Dear All,

Please advise whether A WPS qualified per ASME Sec IX. with PQR Thickness 20mm, can be used for below Joint as shown below, with dissimilar thickness of 92mm and 30mm? As shown in below figure.

Kindly Give Sec, IX clasue reference if possible.

[Raghuram Bathula]

what is your base material? if it is P1 material, no you can't weld, refer QW202.4

--
 

[Juan Carlos Diprinzio]

See QW-202.4 to determine if the PQR can use, according to the base material.

 

--
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/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
 
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.
 
 

 

__________ Información de ESET Smart Security, versión de la base de firmas de virus 7462 (20120910) __________

 

ESET Smart Security ha comprobado este mensaje.

 

http://www.eset.com

__________ Información de ESET Smart Security, versión de la base de firmas de virus 7463 (20120910) __________

ESET Smart Security ha comprobado este mensaje.

http://www.eset.com

[sevak hiren]

Dear,

Since this joint may be considered as single bevel groove weld joint (CJP) and considering your WPS/PQR is qualified max. up to 40 mm base metal thk. with similar thickness abutting joint, please read bold letters remarks below.

ASME Section IX. QW-202.4 Dissimilar Base Metal Thicknesses.

WPS qualified on groove welds shall be applicable for production welds between dissimilar base metal thicknesses provided:

(1) For P-No. 8, P-No. 41, P-No. 42, P-No. 43, PNo.44, P-No. 45, P-No. 46, P-No. 49, P-No. 51, P-No.52, P-No. 53, P-No. 61, and P-No. 62 metal, there shall be no limitation on the maximum thickness of the thicker production member in joints of similar P-Number materials provided qualification was made on base metal having a thickness of 1⁄4 in. (6 mm) or greater.

Remark 1: If your both joining material P Nos. are same & are one of the above mentioned P Nos. then the said joint is accepted.

Remark 2: If one of your production joint material P No. is other then of the above mentioned P Nos. then the said joint is  not accepted.

Remark 3: If both the joining materials are having different P nos. then the said joint is  not accepted.

Thanks & Regards

Hiren Sevak

On Mon, Sep 10, 2012 at 6:15 PM, Tariq Hussain <tariqhu...@gmail.com> wrote:

--

[Vijay....@akersolutions.com]

Hi,

Considering unequal wall thickness,

1.     Radiography control of welded joints will be possible to do?

RT films will give too much exposure on the thinnest side, not enough exposure on the thickest side. Should Ultrasonic testing will remains as only options?

2.     Charpy V Testing of Welding Procedure Qualification can be possible?

- specimen placement in the CAP FL at Thicker member (and FL+2 and FL+5) side and CAP WM. Please see attached sketches.

 

Any thoughts?

 

Best regards,
Vijay Tayade
Welding Engineer 

This e-mail and any attachment are confidential and may be privileged or otherwise protected from disclosure. It is solely intended for the person(s) named above. If you are not the intended recipient, any reading, use, disclosure, copying or distribution of all or parts of this e-mail or associated attachments is strictly prohibited. If you are not an intended recipient, please notify the sender immediately by replying to this message or by telephone and delete this e-mail and any attachments permanently from your system.

[Raghuram Bathula]

1. You can use compensatory block on thinner side for RT, ask your NDT contractor, he might arrange one.

2. CVN Impact specimen can be taken, did you check with the lab, why it can't be taken?

[Vijay....@akersolutions.com]

Hi,

Regarding CVN, if we refer DNV OS F101, the location of sample is shown as 2mm from the external surface(From the Cap).

 

Considering Thicker material side where, we cannot take samples at prescribed position as per DNV(Appendix B), can we take this down till 10mm from the cap.

--

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/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
 
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.

---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-weld...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.