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  1. 78500902

    Two PQRs for one WPS to qualify position on different base materials

    Hello, I would to try and combine two PQRs into a WPS. PQR 1 is 3G with CVNs, materials welded API 5L X65 - API 2H Gr 50. PQR 2 is a 6GR without CVNs, same filler metal as above only changing the materials (API 5L X65 - API 5L X52). Intention is to have PQR 1 qualified for ALL positions. PQR...
  2. 78500902

    PWHT on materials

    Hello, I need to conduct PWHT on a material S460 material and would like to know which type of material would handle better the PWHT: - N (Normalized) - QT (Quenched and tempered) - TMCP (Thermo Mechanilly-Controlled Processing) Which one would handle best the PWHT and which one will handle it...
  3. 78500902

    AWS D1.9 Titanium

    I am looking to weld Titanium Grade 2 to Grade 5 with TIG. Can someone give some guidance on the precautions to be taken and the consumable? Thank you.
  4. 78500902

    TIG welding Titanium Grade 2 to Grade 5

    I am looking to weld Titanium Grade 2 to Grade 5 with TIG. Can someone give some guidance on the precautions to be taken and the consumable? Thank you.
  5. 78500902

    High hardness values fillet weld

    Hello, I have the following material per Shell's specification (F552) with the below composition: - 0.13 %C - 0.51 %Mn - 2.39 %Cr - 0.99 %Mo - 0.006 %V - 0.11 %Ni - 0.08 %Cu - 0.35 %Si - 0.51% Mn - 0.0004 %B We are looking to weld it to S355, fillet weld, although the fabricator is having...
  6. 78500902

    High hardness values fillet weld

    Hello, I have the following material per Shell's specification (F552) with the below composition: - 0.13 %C - 0.51 %Mn - 2.39 %Cr - 0.99 %Mo - 0.006 %V - 0.11 %Ni - 0.08 %Cu - 0.35 %Si - 0.51% Mn - 0.0004 %B We are looking to weld it to S355, fillet weld, although the fabricator is having...
  7. 78500902

    High hardness values fillet weld of F552/S355

    Hello, I have the following material per Shell's specification (F552) with the below composition: - 0.13 %C - 0.51 %Mn - 2.39 %Cr - 0.99 %Mo - 0.006 %V - 0.11 %Ni - 0.08 %Cu - 0.35 %Si - 0.51% Mn - 0.0004 %B We are looking to weld it to S355, fillet weld, although the fabricator is having...
  8. 78500902

    Post weld heat treatment with AWS D1.1

    Hello, I have the following question. We have welded a trunnion to a pipe with a full penetration single side weld. This weld, because of the thickness of the trunnion (65mm), has required PWHT as specification requires PWHT for thickness over 40mm. After being treated, a modification of the...
  9. 78500902

    PQR Essential Variable Changes Requiring WPS

    Hello, I am quiet new to this world of welding and I need help to develop a WPS with AWS D1.1. I need to develop a PQR that qualifies me all the positions possible for a butt weld on a plate, for production welding, and this procedure will have impact requirements. I go to table 4.1 and the...

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