Inorganic Materials: Applied Research

, Volume 5, Issue 6, pp 604–616 | Cite as

Stress-strain field calculation of reformer tube components in EP-300 pyrolysis furnaces manufactured of 45Cr26Ni33Si2Nb2 alloy and analysis of the possible mechanism of failure

  • I. P. Popova
  • A. S. Oryshchenko
  • B. Z. Margolin
  • Yu. A. Utkin
  • N. B. Gromova
Structural and Technological Strength and Materials Performance


The paper analyzes features of the techniques for calculation of thermomechanically loaded reformer tube components in EP-300 pyrolysis furnaces under high-temperature creep. The patterns of the relationship between the tube wall temperature and coking during operation are analyzed. On the basis of the calculated temperature fields and the stress-strain field of the tubes, as well as the data on the deformation capacity and fatigue resistance of the material, the possible causes of premature failure of the reformers are considered. The authors propose a calculation method for analyzing the temperature and the stress-strain field of the reformer tube in relation to the growing coke layer, as well as the estimation of its serviceability according to the criteria of the deformation capacity and the cyclic strength.


reformer tubes pyrolysis furnaces thermomechanical loading coking creep strain fatigue damage calculation method ratcheting 


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Copyright information

© Pleiades Publishing, Ltd. 2014

Authors and Affiliations

  • I. P. Popova
    • 1
  • A. S. Oryshchenko
    • 1
  • B. Z. Margolin
    • 1
  • Yu. A. Utkin
    • 1
  • N. B. Gromova
    • 1
  1. 1.Central Research Institute of Structural Materials PROMETEYSt. PetersburgRussia

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