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  1. ird192

    nozzle to head weld NDE

    I think I posed the question incorrectly we do not think RT is a code requirement for this joint , its the customer who is asking and we're saying no by referencing the code , I guess I'm looking for some conformation that I'm interpreting the code correctly. I've been around RT for years...
  2. ird192

    nozzle to head weld NDE

    we will be adding 2-4" nozzle to a vessel head ,head thickness 3/8" , schedule 40 SA 240 316L nozzles , vessel operates @ 40 psi , 300 F with full vac. looking at UW-3 these would be D type joints , the weld joint will be UW 16.1 detail d (full penetration ) based on UW 11 & 12 " Extent of...
  3. ird192

    false bottom design

    my client has a 8' dia. SA240- 316 API 650 storage tank with what I call a false interior bottom , built in 1985 just started leaking in a crack in bottom plate , the floor is 12" above the bottom of the shell and is 1/4" thick with no grillage or ribbed support just flat plate welded to...
  4. ird192

    asme VIII vessel built 1972

    well fi anyone up and working : we have a vessel built to ASME VIII fabricated in 1972 , MAWP 900psi @ 265 F , tested to 1429 psi, inspected and signed off by AI group in 1972. , undergone two API 510 inspections most recent last year all components per original drawings and materials ...
  5. ird192

    scetion VIII

    do you know of a source where I could get some sort of copy of your reference
  6. ird192

    scetion VIII

    Im looking at a vessel fabricated in 1972 ,heads and shells SA516-70 mawp 900 psi @ 265 F, shell and head normalized and PWHT , 18" LWN 400# flange manway with blind , pressuer tested to 1429 psi signed off and accepted , all other small 2" nozzles were 600# , my calcs. and charts show a...
  7. ird192

    SA 105

    I'm looking at at section VIII vessel built in 1972 , shell and heads SA516-70 , they used a LWN 18" manway using SA-105 II anybody tell me what this is in current context
  8. ird192

    section VIII div. 1 NDE personnel requirements

    what are the current referenced standard for NDE personnel doing inspection on vessel built under that standard, we see SNT-TC-1A or CP-189 what is actually written in the rule I cant find it Thanks
  9. ird192

    API 650 appx. E

    trying to determine moment of tank footing , ist timer , associate ran his software which I reviewed , I noticed his system loaded a value for Ss & S1 , which was used to generate a value for SDs and SD1, which in turn is used to generate a value for Ai in equation E4.6.1-1 and Ac in E4.6.1-4 ...
  10. ird192

    App E API 650

    I'm looking a good sample problem which determined the Seismic moment induced on a footing , I need to review a existing footing for a new tank install
  11. ird192

    IQI selection

    I have to prepare a RT procedure for MIL-STD-1032 " arc welding Armor Grade steel " I cant find a reference for the Hole type IQI , I downloaded E1025-18 which only covers manufacture of IQI, I usually do RT of ASME/AWS projects , looking at RT of 1/4" plate . Thanks
  12. ird192

    Mil-STD-3040 procedures and welder qualification

    we're putting a WPS together for a military standard 3040, pretty clear on the PQR requirements, my question is I don't see any note if the welder who made the PQR test plate welds which require xray as a part of the qualification process for the WPS would also be qualified production welds.In...
  13. ird192

    ASTM A 572 Grade 50 plate

    I need to weld a A 572 plate , AWS D1.1 has a prequalified SWPS FCAW procedure it references applicable to P1 & 2 materials I need to locate some data showing A 572 group 50 is P1 & P 2 Thanks Bob
  14. ird192

    asme section 1

    trying to work thru Section 1 , I'm familiar with VIII, looking at shell opening calcs. is "Compensation " the same as reinforcement.
  15. ird192

    api 620 UT fall acceptance

    looking for a little help interpreting the Flaw acceptance chart in API 620 for carbon steel materials
  16. ird192

    API 653 tank shell repair

    My proposal is to install 1 continuous vertical insert plate over the three shell plates versus installing 3 separate plates which will require more welding , I do not see any prohibition to that route, meeting the vertical spacing requirements and sizing the plate thickness to meet API...
  17. ird192

    API 653 tank shell repair

    I have a client that has a above ground storage tank , a chemical spill damaged a area of the shell 10" wide 18' vert. the shell plate is three different thickness . My interpretation of Section 9 allows for removal of the damaged shell plate and 1 continuous insert plate to be welded back...

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