C84400 Leaded semi-red brass B584
(CENT, INVEST, SAND)
Copper Alloy UNS Number.：C84400
Previous Designation：B 145-5A
Commercial Designation: valve composition, 81-3-7-9
Chemical Requirements（Composition，% Max Except as Indicated）
Major Elements：
Copper：78.0~82.0
Tin：2.3~3.5
Lead:6.0~8.0
Zinc:7.0~10.0
Iron:0.40
Nickelincl.Cobalt:1.0ᴬ
Antimony:0.25
Residual Elements：
Sulfur0.08
Phosphorus0.02
Aluminum0.005
Silicon :0.005
Mechanical Requirements
Tensile Strength,min
ksiᴮ:29
MPaᶜ:200
Yield Strength,ᴬ min
ksiᴮ:13
MPaᶜ:90
Elongation in 2 in.or 50 mm, min, %:18
Keywords
copper alloy castings; copper-base alloy castings; sand castings
