Brass:

Casted items made of Brass are mostly heavy parts, either decorative and are used where high mechanical properties and endurance are required. Its applications are various and lots in networks of power distribution due to its very good electric thermic conductivity. Its main ingredient is copper where it ranges from 55% up to 70% and the rest is different mixings of aluminum, lead, silicon dioxide and other elements depending on the characteristics/properties we want to give to the metal.