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  4. Materials (hierarchy name)
  5. materials (substances)
  6. [materials by composition]
  7. inorganic material
  8. metal
  9. [metal by composition or origin]
  10. nonferrous metal
  11. [chromium and chromium alloys]
  12. chromium
Scope note
Pure metallic element having symbol Cr and atomic number 24; an extremely hard, silvery white metal with a bluish tinge. Use also for the metal as processed and formed, usually in combination with other substances, to make various objects and materials, notably stainless steel, heat-resistant alloy, high-strength alloy steel, and for wear-resistant electroplating.
Accepted term: 15-Jul-2024