C94300 High-lead tin bronze B584
(CENT, INVEST, SAND)
Copper Alloy UNS Number.：C94300
Previous Designation：B 144-3E
Commercial Designation: 71-5-24
Chemical Requirements（Composition，% Max Except as Indicated）
Major Elements：
Copper：67.0~72.0
Tin：4.5~6.0
Lead: 23.0~27.0
Zinc: 0.8
Iron: 0.15
Nickelincl.Cobalt: 1.0
Antimony: 0.80
Residual Elements
Sulfur: 0.08
Phosphorus: 0.05
Aluminum: 0.005
Silicon: 0.005
Mechanical Requirements
Tensile Strength,min
ksi: 24
MPa: 165
Elongation in 2 in.or 50 mm, min, %: 10
Keywords
copper alloy castings; copper-base alloy castings; sand castings