C93800 High-lead tin bronze B584
(CENT, INVEST, SAND)
Copper Alloy UNS Number.：C93800
Previous Designation：B 144-3D
Commercial Designation: 78-7-15
Chemical Requirements（Composition，% Max Except as Indicated）
Major Elements：
Copper：75.0~79.0
Tin：6.3~7.5
Lead: 13.0~16.0
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: 26
MPa: 179
Yield Strength,ᴬ min
ksi: 14
MPa: 97
Elongation in 2 in.or 50 mm, min, %: 12
Keywords
copper alloy castings; copper-base alloy castings; sand castings