PJP groove welds

[moe27]

We have a WPS certified to ASME sec IX for welding P1 G1&2 materials with a thickness range on groove welds of .125" to 1.0".
Could we use this WPS to weld a 1.25" thick plate onto a 1" plate if the 1.25" plate only requires a PJP groove weld?

Regards

 

[weldstan]

No. See QW-403.8 and Table QW-451. and QW-451.2