[MW:31207] Impact test requirements for LAS

Hi Experts,

"Good Morning"

My query has below.

Help me to prepare pWPS.

Process : GTAW +SMAW

Material : P.No - 5B   

ASTM A335 Grade P9. Pipe Size - 16" Sch-60. Thickness: 16.66 mm Thickness range: 5mm to 33.32 mm According to ASME B31.3 Table 323.3.1 shall I required an Impact for the above-mentioned thickness and material. As per my knowledge, the above 25 mm impact test would be required.  How I can find according to line class where impact test required or not. If a minus 29° C impact test not required for LAS.

When we shall consider the impact test exemption. 

And regarding consumable for P No- 5A 

ASTM A335 Grade P22

if I use ER90S-B3 ok or shall I use ER80S-B3 because my client suggest me to use ER80S-B3 please clarify way?

Thanks in advance 

Regards

Kiran

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