Copper, bronze, brass
Copper is ductile metal of pink-red color.
Copper is used as a semi-finished product to manufacture copper (or combined) parts delivered as bars, sheet, band, wire, buses, foil and other rolled or drawn articles with physical and mechanical properties standardized.
Copper builds up many wide-spread alloys: brass, bronze and copper-nickel alloys (cupronickel, Monel, nickel silver, constantan etc.)
Brass is an alloy of copper and zinc.
Brass is delivered as sheet, bars, wire, mesh etc.
Bronze is an alloy of copper (except brass and copper-nickel alloys) with tin (tin bronze) and alloy of copper with aluminium, beryllium, manganese and other elements.
Bronze is delivered as sheet, bars, wire, mesh etc.
For more details see GOST norms & Technical Requirements section.