ipt type="text/javascript"> (fun

Results 1 to 4 of 4

Thread: Tolerance for wall thickness

  1. #1

    Join Date
    Jan 2008
    Posts
    15
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Tolerance for wall thickness

    Hi

    I want to ask...............How to calculate the wall thickness for pipe including the tolerance mil (table 11) as per as API 5L 44Th Edition ( October 2008).


    Regards


    See More: Tolerance for wall thickness

  2. # ADS
    Spons Circuit
    Join Date
    Always
    Posts
    Many
     
  3. #2

    Join Date
    Aug 2008
    Posts
    8
    Thanks
    0
    Thanked 18 Times in 3 Posts
    When I calculate the wall thickness, I take the smallest POSSIBLE thickness. If the published thickness was 0.25" and mill tolerance was 12.5%, I would use (1-.125)*.25"=0.21875" as the smallest thickness.

    If I was calculating the thickness of the pipe based on 31.1, 31.3, 31.8, etc. , I would make sure I chose a pipe (don't forget to subtract mill tolerances, thread allowances, if needed and corrosion allowances) whose thickness was greater than the calculated thickess above.

    am I confusing?

    My threads; engineeringguy :


  4.    Sponsored Links



    -

  5. #3

    Join Date
    Mar 2008
    Posts
    105
    Thanks
    2
    Thanked 14 Times in 7 Posts

    Question offset between 2 longitudinal seam

    Dear All members,

    I would like to know what is the permissible limit of offset when joining between 2 welded pipe(longitudinal seam). ASME VIII clearly stated but B31.3 silent on it. Any other reference, code or recommended practice that i can refer to it. If any could you share with me. Thank in advance for you cooperation

    Regards

    Suhairi

  6. #4

    Join Date
    May 2009
    Posts
    547
    Blog Entries
    1
    Thanks
    6
    Thanked 418 Times in 163 Posts
    Please see the following CR4 Thread with a solved example per ASME code indicating how to calculate the min. pipe wall thickness, taking into consideration the tolerance: link Point to another website You need to be logged in ,in order to see it.

    The pipe wall thickness tolerance as per API 5L is in accordance with Table 9, see the following CR4 Thread : link Point to another website You need to be logged in ,in order to see it.
    Last edited by Abdel Halim Galala; 08-23-2009 at 09:46 AM.

  •   

Similar Threads

  1. Pipe wall thickness as per EN 13480-3
    By pico5892 in forum Engineering Spreadsheets & Presentations
    Replies: 3
    Last Post: 06-11-2017, 12:21 AM
  2. Stress value in Wall Thickness equation in B31.3
    By SMechanica in forum Pipeline And Fluid Flow
    Replies: 2
    Last Post: 01-08-2014, 01:59 AM
  3. Stress value in Wall Thickness equation in B31.3
    By SMechanica in forum Pipeline And Fluid Flow
    Replies: 0
    Last Post: 01-06-2014, 08:09 PM
  4. Minimum Wall Thickness Criteria
    By sfol55 in forum Pipeline And Fluid Flow
    Replies: 0
    Last Post: 08-05-2013, 10:49 PM
  5. Wall Thickness
    By Tito Saul in forum Pipeline And Fluid Flow
    Replies: 0
    Last Post: 07-30-2013, 04:06 AM

Visitors found this page by searching for:

Discussion forum and a library of videos and photographs related to the petroleum industry , Safety And Environment , Geology , Exploration , Drilling , Workover, Reservoir, Oil And Gas Production, Oil And Gas Process, Petroleum Refining, Petrochemical, Laboratory Measurements, Instrumentation & Control, Mechanical Engineering, Planning & Project Management, Pipeline And Fluid Flow, Electrical & Power Engineering, Materials Science &Corrosion, Civil & Structural Engineering, Engineering Certificates, General Engineering, Engineering Spreadsheets & Presentations, Engineering Software Tutorial, Petroleum News, Jobs, Self Improvement,Petroleum Club

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •