Table of Contents

1 Scope
2 Introduction
3 Three-dimensional Finite Element Analysis
4 Two-dimensional Heat Transfer Analysis
5 Limiting Criteria for Combined Loading
6 Reanalysis of Failed Flanges
7 Effect of Lockdown Screw Holes on Strength
8 Conclusion and Recommendations
Annex A - Comparison Between Prac 86-21 and
          Prac 88-21 Results
Annex B - Load Combination Charts

Abstract

Describes the load carrying capacity of API 6A integral flanges. The applied loading includes the end tension and bending moment in addition to the conventional rated pressure and makeup forces.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	American Petroleum Institute
Pages
ISBN