Dear experts!
As per previous edition of ASME Sec IX, If a welder qualifies for P no. 1
his range of qualification will be P1 through P11.
According to latest edition of ASME Sec IX-2010, P no. of A335 P91 material
is changed from P5B Group 2 to P15E Group 1
If a welder qualifies with P1 material, can he weld A335 P91 without additional qualification?
Regards
ASIF
+971-50-9198730
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