October 19 – 21, 2021

Description

Based on API-579
Introduction and Volumetric Metal Loss
(Parts 1, 2, 4, 5, and 6)

The training session begins with the definition of fitness-for-service (FFS) and introduces the Life-Cycle Management (LCM) framework as a process to manage the entire life cycle of fixed equipment including design, construction, in-service use, repair, and retirement. Opportunities for FFS assessments are presented from both the traditional reactive mode and an opportunistic proactive mode. General background information, as presented in Part 1 of the API 579-1/ASME FFS-1 Fitness-for-Service (API FFS) standard with regards to its scope, organization and use, and the responsibilities and qualifications of the parties involved with FFS assessments, is reviewed. The general eight-step procedure from Part 2 of API FFS is presented, which is used for all of the assessments contained in API FFS and introduces the three common acceptance criteria used in FFS assessments including Allowable Stress/Remaining Life, Remaining Strength Factor (RSF), and the Failure Assessment Diagram (FAD).

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Volumetric Metal Loss

The sessions continue with discussion of Part 4 General Metal Loss, Part 5 Local Thin Areas, and Part 6 Pitting Corrosion as found in the API FFS standard. Overview of the applicability and limitations general to all the volumetric procedures is reviewed including flaw type, temperature, and component types, as well as those specific to each type of damage and the associated Level 1, 2, and 3 assessment techniques. The sessions will cover the applicable data requirements and emphasize the importance of documenting original design, operational, and maintenance histories. The required data/measurement techniques used to characterize flaws associated with volumetric metal loss assessments will be covered as well as discussion on the differences and use of the data once collected. Specifically,

  • Part 4: The Level 1 and 2 assessment procedures used to evaluate general metal loss are based upon determination of the average thickness of the component. Two data collection methods are introduced: random point thickness readings (PTRs) and critical thickness profiles (CTPs) developed from an inspection grid.
  • Part 5: The Level 1 and 2 assessment procedures used to evaluate the longitudinal extent of local metal loss are based on the calculation of an RSF using only CTPs, whereas the circumferential extent of local metal loss utilizes an equivalent stress basis considering the effects of supplemental loads.
  • Part 6: The Level 1 and 2 assessment procedures used to evaluate pitting corrosion include a screening approach that compares identified damage to that of pre-populated pitting charts and the determination of an RSF using pit-couple data for the longitudinal extent of the pitting damage. Similar to the Part 5 assessment technique, the circumferential extent of the pitting damage utilizes an equivalent stress basis.

The sessions will also include guidance on the importance and means of establishing a remaining life to establish an appropriate inspection interval for the damaged component. Suggested remediation and in-service monitoring techniques will also be covered based on the type of damage under investigation. Requirements of documentation applicable to each of the techniques used in volumetric FFS assessments will be detailed. Select example problems will be presented to help connect the lectures with real-world application of the procedures.

Course Outline

  • Overview and Opportunities for FFS
  • Introduction to API 579-1/ASME FFS-1 (Part 1)
  • FFS Assessment Procedures (Part 2)
  • Assessment of Equipment:
    • General Metal Loss (Part 4)
    • Local Metal Loss (Part 5)
    • Pitting Corrosion (Part 6)

Course Outcome

Upon completion of the FFS training course, students will have a basic understanding of the following:

The format, organizational structure, and use of the API 579-1/ASME FFS-1 document

  • The importance of damage mechanism identification
  • The applicability and limitations of the FFS procedures
  • The application of the Level 1 and Level 2 assessment techniques
  • The importance of and methods used in establishing inspection intervals
  • The appropriate mitigation and monitoring methods
  • The importance of documentation of the various FFS procedures

Who Should Attend

  • Plant engineers in mechanical reliability programs
    Plant inspectors
  • Central engineering staff
  • Consultants for refining and petrochemicals
  • Can also be beneficial for the fossil fuel utility, pulp and paper, nuclear energy, and other industries that use and maintain pressurized equipment, construction codes and standards, and basic stress calculations.

Attendees should have a working knowledge of equipment construction codes and standards, and basic stress calculations.

Additional Information

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Virtual

October 19-21, 2021

3 4-Hour Sessions

1.3 CEUs

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