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CANDU Pressure Tube Integrity Assessment

Dates & Locations


​The purpose of this seminar is to provide an overview of the life-limiting issues in CANDU reactor pressure tubes and how they are managed through a process of inspection, materials surveillance and an emphasis on the assessment hydride crack initiation risk.

Download Course Outline

Course Outline

Fuel Channel Basics

  • Fuel Channel Design
  • Pressure Tube Manufacture
  • In-Service Degradation Mechanisms
    • Deuterium Ingress
    • Crack Initiation
    • Deformation
  • Inspection and surveillance

CSA N285.8 and Practical Applications Detail

  • Historical Background
  • Contents Overview
  • Evaluation of Blunt Flaws for Delayed Hydride Cracking (DHC)
  • Fatigue Crack Initiation
  • Hydrided Region Overload
  • Probabilistic Assessment
  • Leak before Break


  • Proposed 2010 addendum
  • Fuel Channel Life Cycle Management​

Who Should Attend

​The ideal participants for this seminar include:
CANDU station Technical Staff responsible for:
  • fuel channel life cycle management
  • periodic inspection
  • pressure boundary regulatory interface
  • operations and maintenance
Technical specialists providing:
  • Research and Development
  • Engineering Analysis support

Key Benefits

Gain an understanding of:

  • CANDU Fuel Channel Technical Issues
  • Pressure Tube “fitness-for-service” assessment methodologies


  • David Graham P.Eng, MESc, MBA

    Technical Director – Structural Integrity

    Generation Life Cycle Management​


Contact Training

Training Locations

  • Toronto

    800 Kipling Ave., Unit 2
    Toronto, Ontario, M8Z 5G5




  • Pickering

    940 Brock Road, Unit 11
    Pickering, Ontario, L1W 2A1