note that Impact requirement is the supplementary essential variable. thats why you need to clearly specify in your WPS that this WPS is for Impact or Non Impact application.
if you are doing the impact test you should respect the thickness limits and grouping of material irrespective of thickness and MDMT.
hope clarifies.
in your case definately
--
Regards
Ansari Intekhab Alam
-- On Wed, May 16, 2012 at 10:43 PM, samshuddin k <sam.renja@gmail.com> wrote:
Dear Sir
I have a PQR withASTM A131 EH 36 (Group II )-25mm at -40 Deg Impact
tested as per AWS D1.1.
As per AWS D1.1 Group No & Minimum Impact thickness is supplementary
essential variable.
So we have written a WPS based on that PQR
So as per that only group 1 material above 16mm can be weld when
impact test is required.
Now ma problem is, we have a job with 10mm thkness Grade A material(
Group I) impact requirement is 0 deg C.
Can we use the that PQR to write a WPS for this scenario....?
What Code says.....?
Or can we write a WPS for group II with thknss 10mm for impact
requirement at o deg C
Is the minimum impact thickness requirement is applicable for 0 deg C
when the pQR is tested at -40deg C.
Please advise.
regards
Samshuddin.K
--
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Regards
Ansari Intekhab Alam
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