Case Study

Proactive Fitness-For-Service for Brittle Fracture

Fitness For Service

Proactive Fitness-For-Service for Brittle Fracture

Problem

Most pressure equipment and piping systems currently in operation were built prior to the industry having a valid technical basis to establish low temperature limits to prevent catastrophic brittle fracture.

Solution

Utilize API 579-1/ASME FFS-1 (API 579) Part 3 and Part 9 and WRC Bulletin 599 to establish the minimum allowable temperature (MAT) limits as a function of operating pressure.  If the project involves multiple equipment items, develop a project technical protocol document to establish the technical basis for the project and to ensure consistency with the assumptions, methodologies, and deliverables.

Value

  • Establish safe operating limits for the equipment or piping system.
  • When necessary, couple the assessment with a focused inspection plan to minimize risk of potential brittle fracture failures.
  • Satisfy OSHA requirements and prevent audit findings or fines.
  • Leverage efficiencies and thus reduced cost from focused engineering efforts for cases where the project involves multiple equipment items.

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