Line Pipe API 5l

July 19, 2017 | Author: JithuJohn | Category: N/A
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Aramco vendor inspection for line pipe 01-SAMS-35 1. 3 numbers API Standards name. API 5L, API610, API598 2. 2 numbers API standards which applicable in seamless line pipe. API 5L, API1104 3. Different b/w defects and imperfection. Imperfection is any sort of flaws in the material. Any imperfection which is going beyond acceptable limit becomes a defect. 4. In API standards “jointer” referred as? Two Lengths of pipes coupled or welded together 5. Two 100 % NDE methods using API in the ERW seamless pipe at the pipe mill. UT & MPI 6. Two 100 % NDE methods using API in the SAW pipe at the pipe mill. Radiography & UT 7. Requirement of bell and spigot line pipe in the API. API 5L 8. Which material properties come when testing drop test in API. Impact Test 9. What means of two digits which comes after X in API. Minimum yield strength 10. Maximum strength of X42 in API 5L. 42000 psi 11. For Thread inspection of API 5L in which API standard fall. API 5B 12. 7 different items that are required to be marked or stenciled in API pipes. Size, length, specification, grade, manufacture, heat #

Manufacturer name/license#, API monogram/date of manufacturer/competable standard/grade/heat#/heat treatment condition/test pressure/dimension length diameter 13. Physical attributes checked in flattering test. No cracks or breaks on the weld seam 14. Impact test is mandatory in API 5L? No (for PSL2 services it is mandatory) 15. Line pipe require drift test. Yes 16. Coupling length including in line pipe? Included 17. Three dimensional test typically required in line pipe. Ovality, length, OD, thickness 18. Which % of produced casing & tubing subject to hydro test. 100% 19. Mechanical expansion after hydro testing is acceptable in API? No 20. Hydro testing duration in API is minimum 5 sec? 5 sec for seamless, 5 Sec Welded up to 18’’, 20’’ above 10 sec 21. In ASTM weighed of pipe is required? Yes 22. Three steel marking process. Manual, Semi automatic & Automatic 23. Three common defects which come in line pipe after finish? Undercut, excesses reinforcement bead, under flush, hard spot, lamination 24. How pipe straightness measured? With taut string or wire (holding at both the ends & measuring greatest deviation) 25. How we determine coupling diameter inside or outside diameter? 26. How we determine line pipe diameter inside or outside diameter? Vernier calipers 27. Tubular which API standard falls?

API 5 CT 28. What is the max depth of imperfection as per API

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