Huadian Technology ›› 2011, Vol. 33 ›› Issue (3): 24-28.

• 研究与开发 • Previous Articles     Next Articles

Reasons analysis on of T92 steel pipe bursting of high temperature superheater

DONG Hongnian   

  1. Guangdong Datang International Chaozhou Power Generation Corporation Limited, Chaozhou 515723, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-03-25 Published:2011-03-25

Abstract: The T92 steel outlet pipe of high temperature superheater of a power plant bursted. The normal temperature tensile test and the high temperature tensile test for the cracked pipe and six pipes around the cracked pipe were carried out respectively. Combining with the practical site situation and through comparison and analysis of test results, the real reasons of this pipe crack accident were investigated, and relevant measures were proposed for preventing the pipe crack occurring once again.

Key words: T92 steel, pipe bursting, reason analysis, tensile test, high-temperature strength, metallographic structure, overheat failure