Impact Tests For Section IX PQR 1

[PVGuy]

Can you take a PQR that satisifes your other mechanical tests and combine it with another PQR that was only impact tested to create a WPS or does it have to be done all at once? The issue is the impact testing requirement was simply overlooked on the first round.

 

[metengr]

Yes, you can use the two PQR's to generate a revised WPS with impact qualification, provided the two PQR's were generated using the same essential and supplementary essential welding variables for the same material P-No and Group No.

 

[PVGuy]

metengr,

thank you for the quick reply.

 

[weldtek]

In fact it's often a preferred method. If you qualify a procedure without impacts on 1.5" thick material, and then qualify a plate say 3/8" thick with impact tests only, your qualified range is 3/8" thru 8" with impacts. If you chose to qualify the original 1.5" thick plate with impacts your qualifed range would be restricted to 5/8" thru 8".