Re: [MW:34190] Impact Testing requirements for PQR

Number of PQR's Required for the project based on BOQ Is depends on below 

 1.construction code 

2. material types involved in scope

3. MDMT of materials 

4. thickness range for each material type

5. applicable client specification requirements 

6 number welding processes you are going to use  

7. scope and due date for delivery/completion of project 

8. Target for daily production based on your capacity if resources.  

If your construction code is B31.3 for normal piping scope and no client specification restriction on dia & thickness range of qualification you need to qualify 4 PQR'S Max with GTAW, SMAW processes , if another process you want to use additional new PQRs to be derived based on thickness. 

Thanks & Regards,

Srinivas Rao 

Welding Engineer 

 

On Thu, May 4, 2023 at 2:15 PM 'Ahmed Osman' via Materials & Welding <materials-welding@googlegroups.com> wrote:

3 PQR's may be sufficient , 6mm (3-12) 10mm (10-20) 23mm (16-46) 

Best Regards ,

ENG. Ahmed Osman

On Wednesday, May 3, 2023 at 08:44:46 a.m. GMT+3, Jackson Raj <jacksonraj007@gmail.com> wrote:

Dear all,

In Our project has 3 inch to 24 inch and it's thickness 5.49mm to 45.24mm and Impact Testing required for above thickness.

Please clarify how many PQR are required for this job 

Please consider the Impact Testing also mentioned each PQR thickness qualify 

Regards

JJ

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
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-welding+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CALgFOaXAKmJFBKLz39ZoUn%3Dnwi4Er11Qts17%2BbWyQkBOYML4Eg%40mail.gmail.com.

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
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-welding+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/895749842.194908.1683193821769%40mail.yahoo.com.

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
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-welding+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAHdRSONiO5QmuPw%2B1XMrAMFFSSqs2Wj01RSd49ijB6HmPu7sXw%40mail.gmail.com.