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High temperature applications |
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A range
of heat resistant alloys developed for high-temperature environments and used in a wide number of industries such as power generation,
petrochemical industry, gas turbine, waste incinerator, cement plant … |
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Heat resistant alloys should be selected
depending on the process conditions : examples of candidate grades
are given below |
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Resistance to corrosive atmosphere |
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Temperature
range |
Oxidation |
Carburizing
Nitriding |
Sulfidation |
Halogen gases |
| 550-800°C |
304N, 321 |
Sirius 309, S12, S15 |
Sirius S15, 310 |
Sirius 800, 600 |
| 800-900°C |
Sirius 309, S12, S15 |
Sirius 800, 310, 314 |
Sirius S15, 310 |
Sirius 625 |
| 900-1000°C |
Sirius 309, S12, S15 |
Sirius 800, 600 |
- |
Sirius 625 |
| > 1000°C |
Sirius 310, 314 |
Sirius 600 |
- |
Sirius 625 |
This table should be used as a guide only.
Final selection should be made after a complete technical review of
temperatures and atmospheres involved in your particular operation. |
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Resistance to mechanical stress and in-service embrittlement |
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Temperature
range |
Creep strength |
Structural
stability |
| 550-800°C |
304N, 321 |
304N, Sirius 800 |
| 800-900°C |
Sirius S15, 800, 600 |
Sirius 800 |
| 900-1000°C |
Sirius 600, 625 |
Sirius 800, 310, 625 |
| > 1000°C |
Sirius 600, 625 |
Sirius 310, 314, 600, 625 |
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