Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by composition]
6. inorganic material
7. metal
8. [metal by composition or origin]
9. [iron and iron alloy]
10. iron alloy

Anotations

Scope note:

Iron alloy of fibrous nature made by melting white cast iron, passing an oxidizing flame over it, and rolling it into a mass; valued for its corrosion resistance and ductility. When describing objects produced or shaped by beating with a hammer, use "wrought."