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Recent content by 78500902

  1. 78500902

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

    Sorry to mention, it would be AWS D1.1
  2. 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...
  3. 78500902

    PWHT on materials

    I am welding to F22 (ASTM A182). It would be FCAW and a 50 mm plate. We plan to do a localized PWHT and the piece would be 2 m. Thank you.
  4. 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...
  5. 78500902

    TIG welding Titanium Grade 2 to Grade 5

    Thank you. Therefore moltenmetal, which consumable do you recommend?
  6. 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.
  7. 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.
  8. 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...
  9. 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...
  10. 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...
  11. 78500902

    Post weld heat treatment with AWS D1.1

    Sorry for the late response. This is governed by the specification that requires PWHT. As mentioned by gtaw and weldstan AWS D1.1 refers to the specification as itself doesn't contemplate PWHT. I have read the complete specification and it is based in LR rules for offshore structures. The good...
  12. 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...
  13. 78500902

    PQR Essential Variable Changes Requiring WPS

    Al, in production we want to be sure there will be no problem, so as you say I think I will do 2G (qualifies F, H), 3G up (qualifies V up) and 4G (qualifies OH), and to comply with CVN I will do impact testing only on 3G up (according to table 4.6 qualifies all). Like this I imagine I cover...
  14. 78500902

    PQR Essential Variable Changes Requiring WPS

    gtaw I understand your idea, but my question is: I need to qualify a WPS, which positions I use?
  15. 78500902

    PQR Essential Variable Changes Requiring WPS

    Thank you very much guys, so if I interpret correctly, for production team the best qualification to cover all positions will be: - 6G or 5G if pipe is available - 2G, 3Gup and 4G to cover as many positions ? Is this correct or how would you qualify a procedure? Thanks!!
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