Scenario

01. Ignorance
02. Insufficient Knowledge
03. No Consideration about Erosion Property of Raw Material
04. Organizational Problems
05. Poor Staff
06. Poor Experiment of Staff
07. Hydrogen Reduction Reaction
08. Planning and Design
09. Design Misuse
10. Mal Material Selection
11. Production
12. Hardware Production
13. Piping Construction
14. Usage
15. Maintenance/Repair
16. Inspecton
17. Regular Operation
18. Erroneous Operation
19. Valve was not Closed Tightly
20. Failure
21. Fracture/Damage
22. Crack
23. Secondary Damage
24. External Damage
25. Explosion

Leakage and explosion of hydrogen caused by using SUS304 in a chloride atmosphere and poor welding at a hydrogenated reduction plant.
Case Details

Knowledge Comment:
Cracks of stsinless steel pipes was caused from a mis-selection of material and poor welding.

Field Chemicals and Plants
Author YOSHINAGA, Jun (Graduate School of New Frontier Sciences, The University of Tokyo)
TAMURA, Masamitsu (Center for Risk Management and Safety Sciences, Yokohama National University)