Due to the high density of copper, which is 8920 kg/m3, this material is ranked among heavy metal. When purity is high, its electrical conductivity is even superior to gold. Furthermore, copper is a popular forging and casting material and stampling machines benefit from its heat conductance.
Copper alloys, to which brass belongs, are advantageous with regard to decorative colour, resistance to corrosion, and handling. Particularly when used as wrought alloy, for example hot forming (rolling, forging) and cold working (wire drawing, hammering, cold rolling, deep drawing) application possibilites of copper are nearly unlimited.