Incoloy 800H
Fe-Ni-Cr alloy designed for high-temperature structural applications above 600 °C where resistance to creep and carburisation is required. Used in petrochemical furnace tubes and heat exchangers.
Applicable Standards
- ASTM B407
- ASTM B514
- UNS N08810
Composition Ranges (wt %)
| Element | Min (%) | Max (%) | Typical |
|---|---|---|---|
| Fe | 39.5 | 100.0 | ~69.75 |
| Ni | 30.0 | 35.0 | ~32.5 |
| Cr | 19.0 | 23.0 | ~21.0 |
| Al | 0.15 | 0.6 | ~0.38 |
| Ti | 0.15 | 0.6 | ~0.38 |
| C | 0.05 | 0.1 | ~0.08 |
Fe
39.5–100.0%
Ni
30.0–35.0%
Cr
19.0–23.0%
Al
0.15–0.6%
Ti
0.15–0.6%
C
0.05–0.1%
Typical Applications
- Furnace tubes
- Heat exchangers
- Petrochemical cracking
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