Qualified process GTAW/SMAW

Date 03-06-2013 02:34

Need help!

hello guys...our contractor have qualified wps for gtaw/smaw process, P1 to P1,no impact test, qualified thickness 5 to 20 mm. gtaw filer max deposit 8mm, smaw = 12mm max.

welder have been qualified for 2" dia. x 5.5mm in this wps. can this welder do production joint using the wps but only GTAW process to complete the joint, without exceeding max. deposit qualified for gtaw?

By Shane Feder (****)

Date 03-06-2013 03:12

What is the code you are working to ?
Regards,
Shane

By flawfinder (*)

Date 03-06-2013 03:53

ASME IX and ASME B31.3

By Shane Feder (****)

Date 03-06-2013 04:12

Welder is qualified to 11 mm but can only weld GTAW to 8 mm if that is the only WPS submitted,
Regards,
Shane

By flawfinder (*)

Date 03-06-2013 05:21

Thank you so much Shane..

By Joey

Date 03-08-2013 00:58

Hi Shane

Welder is qualified to 11mm, similarly 2T is also applicable for WPS.

~Joey~

By Shane Feder (****)

Date 03-08-2013 02:56

Joey,
WPS is only qualified for 2 x "t" (deposited weld metal) 2 x 4 mm = 8mm maximum "t".
Doesn't matter if the welder is qualified to 20 mm with GTAW - if the WPS is only good to 8 mm then that is all he can weld - 8 mm max,
Regards,
Shane

By Joey

Date 03-08-2013 03:08

Shane

I thought the OP says 8mm (GTAW) + 12mm (SMAW) = 20mm (GTAW & SMAW).
I overlook the 4mm. You are correct, not common to have an 8mm made of TIG welding for root & hot pass.

Regards
~Joey~