C84800 Leaded semi-red brass B584

C84800 Leaded semi-red brass B584

(CENT, INVEST, SAND)

Copper Alloy UNS Number.C84800

Previous DesignationB 145-5B

Commercial Designation: semi-red brass, 76-2½-6½-15

Chemical  RequirementsComposition% Max Except as Indicated

Major Elements

Copper:75.0~77.0

Tin:2.0~3.0

Lead:6.5~7.0

Zinc:13.0~17.0

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:28

MPaᶜ:193

Yield Strength,ᴬ min

ksiᴮ:12

MPaᶜ:83

Elongation in 2 in.or 50 mm, min, %:16

Keywords

copper alloy castings; copper-base alloy castings; sand castings

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