PQR done with API 5L pipe, Can it be used on ASME Sect. VIII D1 Vessel?

[YMech]

Hello,
I have a PQR done with API 5L Gr. X65 pipe. Can I use this PQR/WPS to weld on an ASME Section VIII, Div. 1 vessel that uses SA-516 70 plate? The P numbers and group numbers are the same for both materials.

Thanks!

 

[Don56]

Were the requirements of ASME Section IX satisfied when the procedure was qualified?

 

[YMech]

PQR was done strictly to ASME IX, satisfying all requirements.

 

[Don56]

Why not then?