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JGC has offered a life prediction assessment service for the Cr-Mo furnace tubes commonly used in commercial plants. This assessment service was based on data from more than 20 years of destructive tests, including creep rupture tests. Now, using this database, JGC has compiled a new life estimation system for furnace tubes through non-destructive inspections. JGC has a vast library of data from creep rupture tests as well as fluctuation ranges of metallographic properties (metallographic fluctuations and carbide transformations). Given a material to be evaluated for life prediction, the new system develops a non-destructive inspection technique by comparing the material's measured metallographic properties to the values in the database, thus giving an estimate on the degree of deterioration in the material. |
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Features |
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- Adoption of nondestructive inspections, in contrast with conventional destructive tests (including a creep rupture test)
- Speedy assessment (several weeks in contrast with several months by destructive tests)
- Assessment of several points at a time
- Highly reliable assessment, drawing on a database compiled through tests on actual aged materials from commercial plants
- Direct assessment of life expectancy, not life consumption rate
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Applications |
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- 2.25 Cr-1Mo steel furnace tubes (i.e, Platformer furnace tubes)
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Experiences |
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- Furnace tubes for platformer
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