Copper slug, 3 mm dia x 3 mm length, 99.999%

Copper is a chemical element with symbol Cu and atomic number 29. It is a soft, malleable and ductile metal with very high thermal and electrical conductivity.

C 8738 (OTTO) Copper slug, 3 mm dia x 3 mm length, 99.999% - used as a pure metal, but when a higher hardness is required it is combined with other elements to make an alloy (5% of total use) such as brass and bronze.