[MW:32827] Re: Requirement for WPS -PQR for Tack Welding.

if tack weld is merged with welding no new WPS is needed.

if tack weld is removed from base metal, then yes need new WPS to support your tack weld thickness. or else can use GTAW WPS( if u have).

On Tuesday, February 8, 2022 at 2:07:18 PM UTC+3 Shivprasad Yadav wrote:

I have an existing WPS-PQR of SMAW process with impact testing requirement. Since the PQR was done with a 38mm plate the base metal thickness qualified is from 16 to 200mm when impact testing is required. For the same job where I have to do Tack welds for the fit-ups will this WPS-PQR suffice for the tack welds? or a separate WPS-PQR will be required?

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