FNBA20
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Corrosion-resistant alloys and steels | Corrosion-resistant heat-resistant steel |
Chemical composition
| Standard | Fe, % | Si, % | Cu, % | Al, % | Nb, % |
|---|---|---|---|---|---|
| < 25 | < 15 | < 2.5 | 20–30 | 27.5–80 |
Note: Nb: Nb + Ta
Information on suppliers
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Fe | % | Iron |
| Si | % | Silicon |
| Cu | % | Copper |
| Al | % | Aluminium |
| Nb | % | Niobium |