Re: [MW:20394] Tack welding

Dear sir
   Not required to re-qualified WPS,PQR     If the PQR  qualify on groove weld then range of  Fillet  qualification is All fillet sizes on all basemetal thicknesses and all diameters , Fillet welds are qualified when the groove weld is qual ified
in accordance with eitherQW-451.1 or QW-4S1.2 (see QW-202.2) Refer  the ASME sec-ix QW-4S1.4

Regards
Rajesh S Mhaske
Engineer Welding
CSWIP 3.1,ASNT Level -II

On Thursday, March 20, 2014 2:17:58 PM UTC+5:30, vikas sahu wrote:

Yes , tack welding can be done,refer article 4 sectionIX fillet qualification table

On 19-Mar-2014 5:59 PM, "mahammed javeed" <jave...@gmail.com> wrote:

Gentle men,

My question regards to the tack welding. I have to make a  bridge tack weld on a 2" SS pipe. As per my company procedure tack welding shall be done by a qualified welder with a qualified procedure. 

As per my knowledge bridge tack is a fillet weld and if a welder is qualified on 6G position on a pipe he is qualified to do so. 

The problem with my client is he said the procedure is not qualified as the base metal thickness qualified for the WPS is 1.5mm to 8.4 mm and the actual base metal thickness is 8.7mm. 

As it is a fillet weld I think the WPS is qualified for tack welding also

Hope to get your clarification on this subject.

Best Regards

M. Javeed

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