Journal of Failure Analysis and Prevention

, Volume 13, Issue 1, pp 20–25 | Cite as

Failure Analysis of a Heat Exchanger Shell

  • S. Al-Shahrani
  • A. Al-Meshari
  • G. N. van Zyl
  • S. Ahmad
Case History---Peer-Reviewed

Abstract

This paper presents a failure analysis performed to investigate cracking observed in a weld joint in the shell of a reheater. Thorough investigation using visual inspection, chemical analyses, metallographic examinations, hardness testing, and creep analysis showed that the weld joint failed by creep. The shell was fabricated from the heat-resistant alloy, Incoloy 800H, and had been in service for 16 years. The shell was exposed to superheated steam at 720 °C. Corrective actions were proposed to repair the shell and prevent recurrence of cracking.

Keywords

Austenitic stainless steel Creep failure Failure analysis 

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Copyright information

© ASM International 2012

Authors and Affiliations

  • S. Al-Shahrani
    • 1
  • A. Al-Meshari
    • 1
  • G. N. van Zyl
    • 1
  • S. Ahmad
    • 1
  1. 1.Sabic Technology Centre—JubailSaudi Basic Industries CorporationJubailSaudi Arabia

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