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Recent content by gafoorkti

  1. gafoorkti

    Structural steel material from unapproved manufacturer

    Thanks for your reply. Apart from testing, what are other things can be taken into consideration while accepting the material from unapproved manufacturer (example: criticality...!) Regards
  2. gafoorkti

    Structural steel material from unapproved manufacturer

    We have placed an order for the supply of structural steel(ASTM A36 plates, beam, column, flat bar, round bar, channel, angles) material to our local vendors. Now, local vendor regretfully states that they are not able to supply some of this material from client approved manufacturer list. we...
  3. gafoorkti

    Material from unapproved manufacturer

    we now experience difficulties in material acceptance by our client with respect to approved manufacturers for structural steels (ASTM A36 plates, beam, column, flat bar, round bar, channel, angles) etc. Presently on case to case basis Client suggests us in carrying out Mechanical & Chemical...
  4. gafoorkti

    Third party inspection is not carried out!!

    We have placed an order for the manufacturing and supply of "Chafe Chain Assembly (offshore mooring chain)" with reputed manufacturer in Europe and on behalf of us to look after inspection activities we have appointed third party inspection agency (TPI) as well. Now, manufacturer completed...
  5. gafoorkti

    Third party inspection

    We have placed an order for the manufacturing and supply of "Chafe Chain Assembly (offshore mooring chain)" with reputed manufacturer in Europe and on behalf of us to look after inspection activities we have appointed third party inspection agency (TPI) as well. Now, manufacturer completed...
  6. gafoorkti

    4140 Alternatives?

    Try with AISI 8620. This substitution may be beneficial.
  7. gafoorkti

    AISI 4130 vs AISI 8620

    We have received weldeability test results and forwarded to our welding speacialist. Finally approved!!! Gents thanks for your valuable input.
  8. gafoorkti

    API 6D vs API 598 for refurbished Ball Valve

    Please can somebody tell me about pressure testing requirement for refurbished 6" class 2500 Ball valve having original design designation on nameplate as API 6D. Now the subject refurbished valve is ready for testing. However, it is on hold due to conflict on the applicable standard to be used...
  9. gafoorkti

    Plate Heat Exchanger

    Gents, Six months ago we have installed Plate type heat exchanger (Cold Lean Rich Glycol Exchanger) in our plant. Now it is leaking and our client has requested us to carry out root cause analysis and to prpare the report. It is hard to find the exact location of leaking. What will be the...
  10. gafoorkti

    AISI 4130 vs AISI 8620

    Yes, agree with Salmon2. API 6A doesn't address about specific material grade AISI 4130 or any. But as per the review of as-built drawing it is noted that "Body-AISI 8620" welded to outlet component AISI 4130 - 4" class 1500 RTJ Flanges. Any consequences if welding involved? Looking for...
  11. gafoorkti

    AISI 4130 vs AISI 8620

    We have received Choke Valve (API 6A, PSL-2, Material class EE) with body material grade AISI 8620 whereas our purchase order clearly calls for body material garde AISI 4130. Can we accept AISI 8620 inplace of AISI 4130? Manufacturer claims that both above grades are equivalent. Any comments...
  12. gafoorkti

    AISI 4130 vs AISI 8620

    We have received Choke Valve (API 6A, PSL-2, Material class EE) with body material grade AISI 8620 whereas our purchase order clearly calls for body material garde . Can we accept AISI 8620 inplace of AISI 4130? Manufacturer claims that both above grades are equivalent. Any comments will be...
  13. gafoorkti

    API 6A Tubing head spool ; Wellhead equipment

    Our client has placed order for "Tubing head spool" with bottom flange dimension 14" 5000 psi (API 6B flange - RTJ). I have thoroughly reviewed API 6A and found that 14" flange dimenion is not referred anywhere. Is the dimension for this 14" flange referred in any other international standard...
  14. gafoorkti

    Hastelly C276

    As per our project requirement we place order for Hastelloy C276 Flanges to ASTM B462 UNS N10276 and ASME B16.5. However, we have received Hastelloy flange to ASTM B574 UNS N10276. 1) Can we accept this flange? 2) As far as I know ASTM B462 UNS N10276 covered in Materials Group 3.8 of ASME...
  15. gafoorkti

    MPI for API 5CT coupling

    I would like to know the scope of MPI (magnetic particle inspection) for API 5CT Coupling (Material Grade T-95 and size 16"). As per my below interpretation of API 5CT, Coupling receives magnetic particle inspection twice ?? ** clause 9.14.2-All couplings shall be inspected on the outside...

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