Re: [MW:16015] Plate qualifications for piping and process restrictions in ASME

Dear Sir,

 

You can use same WPS nad PQR if P Nos. are same for piping and plates but while qualifying welders you will have to check about positions. 

 

Ammar Shaikh

On Fri, Nov 23, 2012 at 1:44 PM, Raghuram Bathula <raghurambathula@gmail.com> wrote:

Please specify your code of construction, in general plate qualifications can be used for piping with few exceptions. however for performance qualifications diameter restriction (e.g. >24" dia in ASME BPV IX) are applicable as per the code of construction. Process restrictions will not be specified in ASME, you can refer to API RP 582 or the applicable contract documents

Note: Please post with an appropriate subject line and don't send to individual mail ID's

On Thu, Nov 22, 2012 at 7:39 PM, cyriac dominic <cyriacd@gmail.com> wrote:

Dear Experts,

I am a member of this form and the questions and answers are very much interesting. Now I have got some questions regarding welding.

We have to fabricate some equipments and pipe lines for a geothermal power plant in Africa. The material of the pipe is A106 gr B and material for the equipments is  P265GH which is equivalent to ASTM 516  gr 60. Following are my questions.

1)  Whether we can use the procedure qualifications  which are  done on the plate to qualify the pipe welding ( both are the same P nos)

 2)whether we can use the procedure qualification which is done on the plate  can be used for the performance qualification of welders for pipes?

 3)Our client is not allowing us to weld with GMAW on pressure retaining equipments or components  and instituting  not to use FCAW

  on pressure vessels and piping other than carbon steel. What is the technical reason for that? Or is it some where in the ASME code?..

Please give me some light on that.

Regards Cyriac Dominic

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@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.
 
 

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@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.