Journal of Failure Analysis and Prevention

, Volume 14, Issue 5, pp 564–568 | Cite as

Corrosion Induced Explosion of a High-Pressure Fire-Extinguishing Gas Cylinder

  • Yong Jiang
  • Jian-ming Gong
  • Peng-jie Tang
Case History---Peer-Reviewed


The failure of a high-pressure fire-extinguishing cylinder was investigated. Failure was induced by internal surface corrosion and stress corrosion cracking (SCC) due to condensation of carbonic acid. In internal surface, especially the area near the bottom of the exploded cylinder, severe corrosion was characterized by local pits. SCC initiated from these local corrosion pits was observed by metallurgical analysis. Microstructure of the failure cylinder near the internal surface consisted of multiple-banded structure and the banded structure could accelerate local corrosion initiation and propagation. The corrosion products built up on the fracture surface were primarily ferrous carbonate (FeCO3). The determination of moisture in fire-extinguishing gas was also examined.


Fire-extinguishing gas Cylinder Carbon dioxide Stress corrosion cracking (SCC) 


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Copyright information

© ASM International 2014

Authors and Affiliations

  1. 1.College of Mechanical and Power EngineeringNanjing Tech UniversityNanjingChina

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