MatStress Engineering has uploaded a document about Furnace Tube Life Management Plan for Extended Service Life in PDF format on the MatStress Engineering website.
This document discusses a forward looking approach to extend the service life of furnace, boiler and heater tubes. The API-530 recommendations are based on the tube thinning and Larson-Miller parameter. The remaining life calculation may be very conservative if the recommendations are used. This document supports the use of recommendations of API-579 which gives a better approach of estimating the service life of tubes. The recommendations may be extremely useful in extending the service life of tubes beyond 100,000 hrs of operation. Find the document in the download section of the website.