Assumptions and Calculation Methodology for API 574, Fifth Edition Structural Thickness Tables, First Edition

The information about the standard:

Designation standards: API TR 593
Publication date standards: 1.4.2026
The number of pages: 68
Approximate weight : 204 g (0.45 lbs)
Country: American technical standard
Category: Technical standards API

Annotation of standard text API TR 593 :

This technical report details pipe span calculations that were performed to determine structural minimum thickness (TSTRUCT) values for various pipe sizes, pressure classes, materials, and temperatures. A large-scale finite element analysis (FEA) sensitivity study was performed to determine if local stresses at pipe supports limit TSTRUCT for any cases. The intent was for the results to be used to update the structural thickness tables in API 574. See more