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Welding Inspection Upon Completion Of Welding

  1. Size, length and location of all welds conform to the drawings / specifications / Code.
  2. No welds added without approval.
  3. Dimensional and visual checks of the weld don’t identify welding discontinuities, excessive distortion and poor workmanship.
  4. Temporary attachments and attachment welds removed and blended with base metal.
  5. Discontinuities reviewed against acceptance criteria for defect classification.
  6. PMI of the weld, if required and examiner’s findings indicate they comply with the specification.
  7. Welder stamping/marking of welds confirmed.
  8. Perform field hardness check.
  9. Verify NDE is performed at selected locations and review examiner’s findings.
  10. Specified locations examined.
  11. Specified frequency of examination.
  12. NDE performed after final PWHT.
  13. Work of each welder included in random examination techniques.
  14. RT film quality, IQI placement, IQI visibility, etc. complies with standards.
  15. Inspector is in agreement with examiners interpretations and findings.
  16. Documentation for all NDE correctly executed
  17. Verify post-weld heat treatment is performed to the procedure and produces acceptable results.
  18. Paint marking and other detrimental contamination removed.
  19. Temporary attachments removed.
  20. Machined surfaces protected from oxidation.
  21. Equipment internals, such as valve internals, removed to prevent damage.
  22. Equipment supported to prevent distortion.
  23. Thermocouples fastened properly.
  24. Thermocouples adequately monitor the different temperature zones and thickest/thinnest parts in the fabrication.
  25. Temperature monitoring system calibrated.
  26. Local heating bandwidth is adequate.
  27. Insulation applied to the component where required for local heating.
  28. Temperature and hold time is correct.
  29. Heating rate and cooling rate is correct.
  30. Distortion is acceptable after completion of the thermal cycle.
  31. Hardness indicates an acceptable heat treatment
  32. Verify pressure test is performed to the procedure
  33. Pressure meets test specification.
  34. Test duration is as-specified.
  35. Metal temperature of component meets minimum and maximum requirements.
  36. Pressure drop or decay is acceptable per procedure.
  37. Visual examination does not reveal defects.
  38. Perform a final audit of the inspection dossier to identify inaccuracies and incomplete information.
  39. All verifications in the quality plan were properly executed.
  40. Inspection reports are complete, accepted and signed by responsible parties.
  41. Inspection reports, NDE examiners interpretations and findings are accurate.