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  1. ChiangJaron

    ASME BPVC.V-2021 ARTICLE 1 MANDATORY APPENDIX III - III-112.6

    Dear All, Could any one help to explain the code meaning? III-112.6 Education, Training, and Experience Requirements for Initial Qualification. (b) Paragraph 6.2. Documented training or experience gained in positions and activities comparable to those of Levels I, II, and III [highlight...
  2. ChiangJaron

    Div2 3.10.3 (similar to UCS-85)

    Dear All, The material P1G1 has certified by supply as following general PWHT simulation test with mill sheet. If apply ASME SEC.VIII DIV.2, the material P1G1 perform PWHT as following as table 6.16 (reducing temperature and increase holding time), should we recertificate this material by...
  3. ChiangJaron

    Initial Level III qualified.

    All expert, Assumption, a new pressure vessel manufacturer. They would follow ASME system with U certificate. They would like to build NDE system with person, procedure, equipment and written practice. Of course, the personal qualification meet any Level II as ASNT SNT-TC-1A requirement. My...
  4. ChiangJaron

    UT ASME sec. V article 4

    Dear all, During CODE 2017 edition, If I applied sec.V article4 appendix VIII, its required and mandatory to follow appendix IX, too. Because the code mentions procedure qualification required per appendix IX. Now, CODE 2019 edition that delete the texts. Is still a mandatory required to...
  5. ChiangJaron

    UT required ASME sec.V article 4

    Dear all, code contents: T-434.1.5 Heat Treatment. The calibration block shall receive at least the minimum tempering treatment required by the material specification for the type and grade. If the calibration block contains welds other than cladding, and the component weld at the time of the...
  6. ChiangJaron

    SS321 material testing (will to PWHT)

    Dear All, I have some question about stainless material testing, special the material subject to PWHT. Pressure vessel with SS321 material including pipe and flange. All impact test requirement exempt from all rule of code, except UHA-51(c). The pressure vessel to be perform PWHT. Question 1...
  7. ChiangJaron

    SA-537 CL2 heat treatment and post-weld heat treatment

    Deae Expert, Background Material SA-537 CL2 The product plate shall be delivery in heat treatment condition in Quenched and tempered. And the tempering temperature is request 595℃ minimum as code. Welding progress is SMAW with ASME SFA-5.5 E8016-G PWHT and Impact test are required...
  8. ChiangJaron

    tubesheet to shell welding

    Dear All, I have a welding question about tubesheet to shell welding affairs. As my attached sketch, I would like confirm the welding shape whether defined a corner joint? Question 2, the welding shape whether accepted by ASME VIII Div.1...
  9. ChiangJaron

    Metric size bolt for ASME standard Flange (B16.5 or B16.47)

    Dear All, Can any one point out where accept or un-accept Metric size bolt used for ASME standard flange. Information From B16.5 para 1.6, it's only mention that "Except for diameter of bolts and flange bolt holes, combining values from the two systems constitutes nonconformance with the...
  10. ChiangJaron

    UG-119(c)(1) for lower case text.

    It's an urgent about nameplate text to follow up. Is it required markings on a nameplate shall be in characters not less than 5/32 in. (4 mm) high?? How about lower-case text? For example: Good Job technical.
  11. ChiangJaron

    ASTM material

    Dear All, I have a question about the ASTM material to apply in ASME pressure vessel construction. As my attachment, table II-200-1 of ASME section II part A. Please explain to me that "X" and "..." marking means on this table. Is it means that can not apply ASTM material for ASME VIII Div.1...
  12. ChiangJaron

    fiber elongation

    Dear All, I have a question about fiber elongation calculation for the material P No.1 Gr No. 1 and 2. And whether necessary stress relief or not after forming. For example, Material: SA-516-70 For pressure vessel head application : approx. 2:1 semi-elliptical Head inside dimension : φ650 mm...
  13. ChiangJaron

    SPI mold finish guide / grade B-2

    Dear All, Because I can't search any SPI standard contents to confirm the roughness. Can any one tell me acceptance criteria ,if I apply the #400 grit paper to polish. I think there are not specified roughness values in any standard as my application. ex. #400 grit paper to polish, the...
  14. ChiangJaron

    calculation software verification

    Dear All, I have a question about the calculation software used for ASME Sec.VIII Div.1 & 2. Are there any code request the calculation software to be verified prior to use? Now, we are requested by AI every time to present our software verification document to proof the calculation software...
  15. ChiangJaron

    SB-564 heat treatment

    Dear All, I have a question about SB-564 nickel alloy heat treatment. I can't find the specification from ASME SEC.II PART B such as heat temperature, time...etc. Does any suggest application code, rule, or specification to follow up?
  16. ChiangJaron

    Channel flange replace.

    Dear All, I have a question about calculation for the channel flange. The channel flange is a part of channel side cover of heat exchanger which was made as per ASME code a long time ago. In case, my client only want to replace change cover only. I calculated as per ASME SEC.VIII DIV.1...
  17. ChiangJaron

    UW-20.4 (b)(2)(a) the thickness through the weld throat

    Dear All, UW-20.4 (b)(2)(a), there told "where the thickness through the weld throat is less than the nominal tube thickness t", My question is what is "thickness through the weld throat" mean ? If the welding shape is fillet welds only 2 mm leg size and tube thickness is 2.11 mm, Does...
  18. ChiangJaron

    ASME UHX 13.5.6 STEP 6 Dj INPUT

    Dear All, As the ASME sec.VIII Div.1 UHX 13.5.6 STEP 6, I knew the Dj value input just like Figure UHX-13.1 skecth (a) that it is. And I think the Dj value from expansion joint of "thick" type such as appendix 5. My question is, if I apply the bellow type as appendix 26, how about the Dj value...
  19. ChiangJaron

    SA-578 SUPPLEMENTARY REQUIREMENTS S1

    The ASME UT procedure SA-578 with supplementary requirements S1 as : S1.1 Scanning shall be continuous over 100 % of the plate surface along parallel paths, transverse or parallel to the major plate axis, with not less than 10 % overlap between each path. Can anyone tell me what's means " with...
  20. ChiangJaron

    Welding joint as per ASME SEC VIII Div1, figure UW-16.1 (a) for lethal service

    Dear All, I have a urgency question as subject mentions about welding joint. Refer attached figure. The design base code is ASME SEC VIII Div.1 It's a lethal service of internal liquid. As per UW-2 request that all category D joint shall be full penetration welded. In order to reduce welding...

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