Using Fitness-For-Service Methods in API 579-1/ASME FFS-1 to Evaluate Damaged Components in the Creep Regime

Presented by Phillip E. Prueter, P.E.

This webinar provides overviews of Part 10, Assessment of Components Operating in the Creep Range, and API 579-1/ASME FFS-1, Fitness-For-Service(API 579); as well as discussing background information on the Materials Properties Council (MPC) Omega Creep Method. In API 579, assessment procedures for estimating equipment remaining life in the creep regime are provided for components with and without a crack-like flaw, subject to steady-state and/or cyclic operating conditions. In general, the accuracy in any creep assessment procedure is highly dependent on the ability to define the stress and temperature history (including start-up, upset, and shutdown conditions) for both past and future operation; however, Omega creep testing can be performed to supplement remaining life calculations for cases where operating histories are unknown. This webinar summarizes the Levels 1, 2, and 3 FFS assessment procedures for estimating creep damage and remaining life in accordance with API 579.