Recent content by stanweld99

Base material is unassigned customized material with specific dimension for fillet weld. Qualification is using production joint configuration.

For a fillet weld PQR coupon welding, fusion tack welds are used on the PQR. Can fusion tacks show on the WPS? Is a separate fusion weld PQR required in order to have fusion tacks on the WPS? What is the ASME IX code interpretation on this? Thanks in advance!

Please advise what standard/Code should be followed for Cast Iron Repair welding procedure qualification?

For GTAW machine welding, if root pass uses fusion welding without filler and fill pass with filler, per QW-404.14, since deletion or addition of filler metal is essential variable, should this procedure be classified as weld with filler? can we put wire feed speed 0 in the WPS or PQR?

DD: the application is similar per code case N-504

Thanks DD for the reply. The overlay is for structual reinforcement and is structural weld overlay. Should not be classified as corrosion resistant overlay, hardfacing overlay or cladding per Section Ix Qualification. Can we conclude that ASME IX does not cover this for WPQ?

Metengr: The main point is the actual welding is not groove weld or fillet weld, it is overlay outside the surface of the pipe.

Metengr: Thanks for the response. for the mentioned full structural weld overlay repair, per Section Ix for procedure and operator qualification, I am planning: 1. PQR on groove weld per QW-202.3 2. prepare WPS for overlay application 3. Qualify welding operator on overlay weld (not groove weld)...

For full structural weld overlay repair, the welding procedure is qualified per ASME IX QW-202.3. Should welding operator qualification be on groove joint design or overlay joint prep?

Consumable insert is used for GTAW root pass, and SMAW for the fill pass. In the PQR, if the deposited weld metal thickness for the root pass is t, will the Max deposit thickness be 2t on the WPS for the GTAW process (without filler wire)? Please advise.

For machine welding operator qualification test on hard facing, does it have to be with the hard facing procedure per QW-453? Are operators qualified from groove weld procedure (since P and F number are not essential variables for machine welding) qualified for hard facing? Thanks for the...

For a hard-facing PQR on 1 inch thick coupon, per construction code, 1 hour is required for PWHT holding time for the 1 inch thick base material. If per QW-407.6, production component is 4 inch thick, should the PWHT for the PQR Coupon be done in 4 hours (1 hr/inch) for compliance with the...

Metengr: Thank you so much for your valuable input. The other question I have: If no butter layer is used, use original base material filler to restore to original size, then hard facing with Satellite 21, with two PQRs as discussed above (one is groove, the other is hard facing...

Looking at previous post from Metengr for the qualification of hard facing overlay with buttering layer, Two PQRs are required. Some questions for these two PQRs: 1. For the buttering layer (Nickel based filler) to base material (alloy steel) PQR, should this be done on groove weld with alloy...

Thanks Metengr for the quick response. If WPS is required, Should this be qualified as CRO?