Incoloy sheathing tube for heating elements
Incoloy alloy are Fe-Ni-Cr alloys that represents the best alternative for the 300 series stainless steels when improved performance or strength at temperature is required. Incoloy alloys are used for corrosion resistance, heat resistance, requiring strength, and stability for service up to 816°C. One remarkable attribute of this alloy is the fact that it also offers general corrosion resistance to many aqueous media.
In applications requiring greater resistance to stress rupture and creep, especially at temperatures above 816°C, Incoloy 800H and 800HT can be used.
Incoloy alloys
| Alloy 800 | Alloy 800H | Alloy 800HT | Alloy 840 | |
|---|---|---|---|---|
| Ni | 30.0-35.0 | 30.0-35.0 | 30.0-35.0 | 18.0-22.0 |
| Cr | 19.0-23.0 | 19.0-23.0 | 19.0-23.0 | 18.0-22.0 |
| Fe | min 39.5 | min 39.5 | min 39.5 | Bal. |
| C | max 0.10 | 0.05-0.10 | 0.06-0.10 | max 0.08 |
| Al | 0.15-0.60 | 0.15-0.60 | 0.25-0.60 | max 0.60 |
| Ti | 0.15-0.60 | 0.15-0.60 | 0.25-0.60 | max 0.60 |
| Al+Ti | 0.30-1.20 | 0.30-1.20 | 0.85-1.20 |
Size range
Outer diameter: 4-25mm
Wall thickness: 0.18-2mm
Forms
Tubes are welded and both straight length tube and coiled tube are available.