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. nonferrous metal
10. [copper and copper alloy]
11. copper alloy

Anotations

Scope note:

Alloy of copper and beryllium containing usually not more than 3% beryllium. The alloy has a bronzelike, crystalline structure and is unsurpassed in its ability to withstand fatigue, wear, and corrosion and in its electrical conductivity at high temperatures.