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Recent content by teokal

  1. teokal

    Reinfocing Pad vs Transition plate

    Dear all, As it is known, reinforcing pads are considered to have the same requirements (impact test, sim PWHT, etc.) as shell pressure retaining material (plate, head, pipe), and they are treated as other materials - as separate components - by UCS-66. What about the transition plates for...
  2. teokal

    Saddle calculations for ASME VIII Div.2 Pressure Vessel - paragraph 4.15

    Dear all, Reference is made to ASME VIII Div.2, Ed. 2023; the question is whether the equations (4.15.27) (4.15.28) (4.15.29) are valid only for reinforcement or wear plate welded to Cylindrical Shell of a Pressure Vessel, or can also be used for reinf. / wear plate attached (not welded) to the...
  3. teokal

    ASME Material and EN grouping

    Thank you, Huub! Only best result in absolutely necessary time
  4. teokal

    ASME Material and EN grouping

    Dear all, We use ASME materials (SA-333 Gr6, SA-350 LF2, SA-420 WPL6), for construction according to EN13445-1 (yes, it is allowed). As per ISO 15608, materials that belong to group 1 but have higher C% (greater than 0,25%), belong to group 11. Now, as per ASME II, the above materials have...
  5. teokal

    SS 321 LWN Nozzle set-on weld on P11 Base Metal Weld Overlayed with 347

    Dears david339933 and r6155, Thank you for your useful responses! r6155, this paragraph is known, thank you for pointing out. The thing is that the User/Client specifies the LWN to be solid SS material, and welded on the cladding (for their reasons, probably process and theri historical data -...
  6. teokal

    SS 321 LWN Nozzle set-on weld on P11 Base Metal Weld Overlayed with 347

    Hello guys, I kindly need your assistance to the below (attached sketch for reference): As you see, it is a branch (corner) weld (Set-on type) of a SA182 Gr. F321 Long Welding Neck (LWN) with thickness varying from 15,87mm to 27,1mm, to the Pressure Vessel Shell, which is a SA387 Gr.11...
  7. teokal

    ASME VIII - Dent vs Out-of-roundness

    Hi everybody, We are fabricating a Column with dimensions 3700mm ID, 17mm thickness, SA516 Gr70 material (TL-TL does not matter). The Column is now at its final stages of fabrication, and it has a lot of nozzles welded to its shell. These nozzles do not give us a lot of position choices, and so...
  8. teokal

    Video camera for Electroslag Strip Cladding

    Hi to all, I was wondering if anyone could suggest what video camera (type, model) would be convenient to be used for welding operator of Electroslag Strip Cladding process. Electroslag Strip clading process produces heat, radiation and a lot of light from the melted strip and flux (although...
  9. teokal

    NACE MR0103-2015 Hardness on BM after Weld Overlay

    Dear all, Reference is made to NACE MR0103-2015, clause 15.2.3 Quoting: 15.2.3 The base materials listed in Clause 13 or Clause 14 are also allowed as weld overlays, provided they meet the provisions of their respective paragraphs after being applied as overlays. Following application of the...
  10. teokal

    Fabrication according to previous ASME BPVC edition

    XL83NL, Thank you so much for your prompt reply; I can now admit that I had exactly the same impression and opinion, but now I'm more confident... We are in Greece, and the client is a local refinery... I believe that I will now have to get in contact with the client, to see our next steps...
  11. teokal

    Fabrication according to previous ASME BPVC edition

    Hi everyone, and happy new year!!!! Our Client needs to make some heat exchangers that are copy of the existing ones, made back in 2004-2005 by others. They provided to us the data books of the exchangers fabrication. That time, the applicable ASME BPVC edition for the project was 2001, with...
  12. teokal

    Clad Bonding Quality Lavel S6

    Hi everybody, We have a pressure vessel to fabricate, with weld overlay. The bond quality shall be checked per SA-578, Level S6. But, level S6 is nowhere within the Code... I only see Class 1, Class 3 and Class 5. What is the compatible Class, for level S6? I believe that S6 is withdrawn some...
  13. teokal

    UT for Cat D welds - ASME VIII Div II

    Dear fleischfresser, thanks for the reply; I was looking exactly for this, and just realized that Code edition 2017 is much more clear than edition 2015. In ed. 2017, note 1 of table 7.2 is self explanatory, while in edition 2015, this was a grey area... Of course, there is always table 7.3...
  14. teokal

    UT for Cat D welds - ASME VIII Div II

    Hi, According to Table 7.2 of ASME VIII Div.II, for Cat D joints, either type 1 or 7, RT or UT is required, together with MT or PT. My question is whether the UT shown in Table 7.2 is "in lieu of RT", or conventional UT could be performed. Only best result in absolutely necessary time
  15. teokal

    Wire IQI - is there a "better" wire than the nominal?

    Hi Shane, thanks for the reply! Yes, the Client has seen both the film and the report... The Client has proven himself pretty typical to these issues, and he wants the report to be "perfect". Now, we agree about the final outcome (thinner wire, better film quality). Yes, he managed to see wire...
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