[MW:13065] Charpy Impact Test requirement for P91

Dear Members!

Project : Solar Power plant
Service : Hight Temperature Steam
Material : P91
Operating temperature range: 37 - 398 Degree Celsius
Construction Code : ASME B31.1
Welding Code : ASME Sec IX

Do we need to do 'Charpy Impact Test' for procedure qualification of
P91 material?

Regards
ASIF
+971-50

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