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Regards,
Arun Padman Manayil
Why 40 mm gap is reqd.?--On Thu, Apr 4, 2019 at 5:25 PM Ramin Kondori <raminkondori@gmail.com> wrote:A WPS with 40mm root gap and 10mm base metal is not something you expect to be approved...This must be the fault of design or cutting plan or cutting operations etc.
- The first option that should be investigated is whether the plate can be used in a different location. Refer to the shop drawings and material cutting sheets to study this alternative.
- Another possibility, assuming material is available, is splicing on material by butt-welding. The weld must be reflected in the shop drawings and meet D1.1 quality criteria.
- If none of these are feasible, the piece may have to be replaced.
You can cut back your structural member and then weld a piece so that the final assembly is within the weld joint dimensional tolerances (this weld shall be CJP). This is the industry practice for such wide root gaps.RegardsRamin KondoriSr. QA/QC & Welding Engineer-----------------------------------------------------------PG-Dip. in Welding Engineering (IWE AT 0070)BSc. in Civil Engineering (IUT)BGAS Painting InspectorASNT Level I&IIOn Thu, Apr 4, 2019 at 3:23 PM Arun Padman <arunpadman0105@gmail.com> wrote:Dear All,
I have a situation in which I need to qualify a WPS with 40mm root gap and 10mm base metal,
But the client is not ready to allow us to conduct the PQR, he need a technical clarification before we conduct PQR,
Is it allowed to weld 40 mm root gap with backing plate as per AWS D1.1, please help me.
Regards,Arun Padman ManayilP Save a tree. Please don't print this e-mail unless you really need to--
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