Inspectioneering
Inspectioneering Journal

New Release of API/ASME 579

The de facto International Standard for Fitness-For-Service

By Bob Stakenborghs, P.E. at Evisive Inc.. This article appears in the May/June 2005 issue of Inspectioneering Journal

API is preparing to release the next edition of API 579 Fitness-For-Service (FFS) the first quarter of 2006. The many major enhancements that have been made to the next edition of API 579 are summarized in this article. The major enhancements made to API 579 will permit Owner-Users to evaluate new types of damage including HIC/SOHIC and Dent- gouge combinations, and allow detailed remaining life assessments of components operating in the creep range. In addition, new procedures for stress analysis have been developed that will enhance the usability and accuracy of Level 3 Assessments resulting in longer run-times for damaged components.

To avoid confusion with other ASME B&PV Codes and Standards, existing Sections in the 2000 edition of API 579 are being renamed to Parts.

A summary of enhancements to existing Parts and new Parts covered in the 2006 Edition of API 579 is shown below.

  • Part 5 - Assessment of Local Thin Areas, assessment procedures for gouges being relocated to Part 12
  • Part 7 - Assessment of Blisters and HIC/SOHIC Damage, assessment procedures for HIC/SOHIC damage have been added
  • Part 8 - Assessment of Weld Misalignment and Bulges, assessment procedures for bulges being modified, assessment procedures for dents being relocated to Part 12
  • Part 10 - Assessment of Equipment Operating in the Creep Range, assessment procedures for remaining life calculations for components with or without crack-like flaws are provided
  • Part 12 - Assessment of Dents, Gouges, and Dent-Gouge Combinations, new Part
  • Part 13 - Assessment of Laminations, new Part

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