Numerical data on creep-resistant steels. Part II
Article REF: M4579 V1

Numerical data on creep-resistant steels. Part II

Author : Guy MURRY

Publication date: September 10, 2006 | Lire en français

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AUTHOR

  • Guy MURRY: Engineer from the École nationale supérieure d'électrochimie et d'électrométallurgie in Grenoble. Doctorate in engineering - Former Director, Office Technique pour l'Utilisation de l'Acier (OTUA) - Consulting engineer

 INTRODUCTION

This file is a compilation of numerical data relating to steels:

  • unalloyed ;

  • low alloyed ;

  • alloys (5 < Cr % < 12) ;

available in standards and presented in the form of tables, each corresponding to a well-defined grade (and sometimes product). Each table lists the basic characteristics (chemical analysis, tensile properties), the guaranteed values for hot yield strength (where applicable) and the creep resistance characteristics, all of which reflect the steel's field of application.

Thus, at different temperatures, the following appear more often than not:

  • unit loads causing 1% creep elongation in 100,000 hours, considered as the lower limits of the working range;

  • unit loads causing creep failure in 10,000 hours, considered as the upper limits of the working range.

In the absence of some of these data, reference was made to unit loads causing creep failure in 200,000 hours, considered as another lower limit of the working range.

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