Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations KootK on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. fleischfresser

    Supplier for SA612 plate material for PQR

    As a U-stamp holder, you can recertify European material according to UG-10(a) (Identified Material With Complete Certification From the Material Manufacturer) to an ASME-permitted material. There is an intersection between the mechanical technological properties and the chemical analysis of EN...
  2. fleischfresser

    Is pressure retaining fillet weld qualification by fillet weld possible under ASME IX.

    Read the Code (ASME Ed. 2023): "QW-202.2(c) Qualification for Fillet Welds. WPS qualification for fillet welds shall be made on groove-weld test coupons using test specimens specified in (a) or (b). These qualifications may be used for welding all thicknesses of base metal for all sizes of...
  3. fleischfresser

    QW-193.2 qualification and continuity requirements

    General (including welder and operator qualified by tube to tubesheet mock-up): The qualification of a welder or welding operator for a process remains valid provided no more than 6 months have passed since the welder or welding operator last used that process. But there is a different for...
  4. fleischfresser

    Shell-Dish Joint weld applicability

    david339933 in this case you are right as the thickness is greater than 16 mm Regards - Juergen
  5. fleischfresser

    Joint efficiency where 3 welded joints join in

    Which code? If ASME VIII/1 is applicable read table UW-12. The joint shell to header is an corner joint, which means joint of type 7 and there is no Joint Efficiency. Regards - Juergen
  6. fleischfresser

    Shell-Dish Joint weld applicability

    Type 1 joint definition per table UW-12: -Butt joints welded from both sides or -Butt joints welded from one side only without a permanent backing strip, that are verified as having achieved full penetration and fusion as required by UW-35. In your case, the second bullet point applies if UW-35...
  7. fleischfresser

    Maximum Allowable Stress for SB-677 N08904?

    Working with the code means be precise and read the code. Which edition is applicable? Edition 2021 SB-677 UNS N08904 is mentioned in table Table UNF-23.3 as well in ASME IID, table 1b, line 37 and UG-4(a) will be met. Edition 2023 SB-677 UNS N08904 is mentioned in table Table UNF-23.3 but not...
  8. fleischfresser

    ASME IX - FORM QW-483 Suggested format for PQR

    The name(s) of the laboratory/laboratories who conducted the Mechanical Testing shall be stated on this line corresponding to the laboratory test number(s) in the same line. If there is not enough space for this, adapt the form or refer to an appendix where all laboratories are listed with the...
  9. fleischfresser

    Hydrotesting of ASME SEC VIII Div.2 vessel repair under NBIC

    I assume you mean the original Code of Construction is ASME Section VIII Div. 2. NBIC Part 3, Para 4.4.1a)1) require for hydro test: Pressure tests shall be conducted using water or other liquid medium. The test pressure shall be the minimum required to verify the leak tightness integrity of...
  10. fleischfresser

    Dissimilar material between Nozzle and Shell (ASME VIII Div I)

    If a company were to make such a suggestion to me, I would immediately blacklist them as an unqualified supplier, as they do not have sufficient knowledge of the manufacturing processes for pressure vessels. This is typical for engineering companies that have lost all connection to the pressure...
  11. fleischfresser

    B31.3 PQR Impact test exemptions

    This discussion can only be based on ASME B31.3 Edition 2020 or later as there are several changes to the toughness testing requirements with Edition 2020. Basic for the Evaluation: ASME B31.3 Ed. 2020 323.2.2 Lower Temperature Limits, Listed Materials …… (d) Impact testing of the base metal...
  12. fleischfresser

    Is it permissible according to ASME

    It is permissible. Interpretation: VIII-1-10-15 Subject: UW-9(d), Table UW-12 (2007 Edition, 2009 Addenda) Date Issued: April 30, 2010 File: 02-3088 Question (1): Does Section VIII, Division 1 restrict the number of longitudinal welded joints that may be located in a single shell course? Reply...
  13. fleischfresser

    Tube to tube sheet welding at inner face (shell side) of Tubesheet

    This tube to tube sheet joint is used by several manufacturer. See Code Case 2428-4 "Attachment of Tubes to Flat Tube sheets Using Complete Penetration Welds Section VIII, Division 1" See also...
  14. fleischfresser

    PWHT for SA-266 Gr.3 of TS and tubes of SA-213 T9

    I want to avoid being unpolite, but the answer of DhurjatiSen is a bit too simple. A joint from P-No. 1 to P-No.5B is an unusual combination of materials. Normally a P-No. 4 transition material is used. But this does not work for tube to tubesheet welds. Some other Pressure Vessel Codes (e.g...
  15. fleischfresser

    TUBE-TO-TUBESHEET

    I agree 100% with MeltedEng. Back to the OP question: The thickness range for a pipe >2.5mm welded during the qualification test is: greater than 2.5mm (with no upper limit). Regards - Juergen
  16. fleischfresser

    Normalized w/Accelerated Cooling & Tempering (NACT) vs Normalize & Tempered (N&T)

    Hi, the stated requirement comes from Section VIII, Division 1, Paragraph UG-84(h)2()(-b) or Section VIII, Division 2, Paragraph 3.11.8.3(f)(2) and is therefore an addition to the variables of ASME IX and must be fulfilled if there are impact requirements for all P-No. until Edition 2021 and...
  17. fleischfresser

    Hi, I need to clarify with my su

    Read the Code: UG-848(h)(3) Material Over 11/2 in. (38 mm) Thick Regards - Juergen
  18. fleischfresser

    PQR FOR MATERIAL 1.4521 (AISI 444)

    1.4521 or UNS S44400 is a Ferritic stainless steels and is assigned to P-No. 7.1 acc. to ASME IX as well to Material Group 7. 1 acc. to ISO/TR 20172. In compliance with: • ASME VIII/1 Edition 2021, Table UHA-32-2 • ASME B31.3 Edition 2020, Table 331.1.1 general PWHT is required. But in...
  19. fleischfresser

    Tube-to-Tubesheet PQR impact test

    For evaluating if impact tests are required you must follow the rules of UCS-66: "Each component shall be evaluated for impact test requirements based on its individual material classification, governing thickness ....., and the minimum design metal temperature." The following governing...
  20. fleischfresser

    Multi-chamber vessel nameplate - code and 'non-code' info

    You Can put all the information on the same nameplate as long as the layout of the nameplate shows a distinct delineation between the area with the ASME certification mark for the chamber in the Scope of ASME Section and the area for the chamber not in the scope of ASME code section. Regards -...

Part and Inventory Search