As u r using consumable of superior grade,yes u can use but please ensure this WPS must not be used in case of non-impact requirement...because change of AWS class is a supplementary essential variable as per sec IX..
On 11 Sep 2015 9:20 am, "Raghuram Bathula" <raghurambathula@gmail.com> wrote:
-- No, you need to follow your code of construction and support with new PQR qualified at or below MDMT--On 11 September 2015 at 09:12, Mahesh Mirje <mahesh.mirje41@gmail.com> wrote:Hi expert's,
I have PQR with electrode E7018, AND IMPACT tested at -30deg. Lets say Observed energy values 20J
Can I make wps with E7018-1, FOR IMPACT REQUIRMENT at -45 deg.required energy values 20j,
AS per ASME weld metal produced by 7018-1, will provide 20j at -45 deg.
And HAZ ENERGY VALUES CAN BE CONTROLLED BY RESTRICTING HEAT INPUT.
Pls, clarify can I prepare wps for 7018-1 at -45 by restricting heat input as same used in 7018 PQR.
Regards
Mahesh
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