GTAW WPS using GTAW/SMAW PQR

• Mar 27, 2025

• #2

weldstan

Materials

Jun 24, 2011

2,793

Yes, if the Code has not changed in the past 10 years.

 

Upvote 0 Downvote

• Mar 28, 2025

• #3

DekDee

Petroleum

Mar 12, 2012

1,316

Karabau,
Do not confuse base metal qualified with weld deposit qualified
As per Table 451.1 your base metal qualified is 5 mm - 21.94 mm
Maximum GTAW deposit is 6 mm.

Unless I have misinterpreted that 10.97 mm is greater than 10 mm (Interpretation ?)

 

Upvote 0 Downvote

• Mar 28, 2025

• #4

XL83NL

Mechanical

Mar 3, 2011

3,109

Your construction code (which you haven't specified, such as B31.3 or VIII-1) may set additional, more stringent requirements on top of ASME IX. Take those into consideration as well.

 

Upvote 0 Downvote

• Mar 29, 2025

• #5

EdStainless

Materials

May 20, 2004

16,264

Wouldn't you need to test the GTAW passes without the others to qualify that?
But you sure could use the same procedure.

 

Upvote 0 Downvote

• Apr 8, 2025

• #6

Louisiana Inspector

Chemical

Jul 21, 2023

35

I may be reading your post wrong, but if your current PQR were completed with a 10.97mm thickness, the range of qualified thickness would be 4.7mm - 21.89mm. You would need to do a PQR with a 1.5mm thickness, and that will only give you a qualified range of 1.5mm - 3mm

 

Upvote 0 Downvote

• Wednesday at 9:15 AM

• #7

DekDee

Petroleum

Mar 12, 2012

1,316

karabau said:

Hello, this maybe a silly question, and sorry for my english.
I have a PQR for double process GTAW & SMAW (refer picture) with 10.97MM base metal. Can i produce WPS for GTAW process with 1.5mm-6mm base metal qualification base on my GTAW/SMAW PQR?
View attachment 7184

Click to expand...

Basically No - if your original PQR was on any thickness 10 mm or below you could write a WPS for 1.5 to 6 mm

 

Upvote 0 Downvote