Copper (Cu) 57~61%
Zinc (Zn) Bal %
Lead (Pb) 1.8~3.7%
Iron (Fe) 0.5% max

Good corrosion resistant, excellant machinability. Easily hard and soft soldered, good heat/electrical conductor.

Copper (Cu) 59~62%
Zinc (Zn) Bal %
Lead (Pb) 0.1% max
Iron (Fe) 0.07% max

Bright yellow finishes. Use in electrical equipment,ornaments, terminals, radiators for cars, components of camera, handicraft articles, etc.

Copper (Cu) 59~62%
Zinc (Zn) Bal %
Lead (Pb) 0.5% max
Iron (Fe) 0.3% max
Tin (Sn) 0.5~1.0%

On parts where high degree of corrosion resistance to seawater is required.

Copper (Cu) 76~79%
Zinc (Zn) Bal %
Lead (Pb) 0.05% max
Iron (Fe) 0.05% max
Aluminium (Al) 1.8~2.5%
Arsenic (As) 0.02~0.06%

Tubes for heat exchangers and condensers.