C90300 Tin bronze + leaded tin bronze B 584

C90300 Tin bronze + leaded tin bronze B 584

(CENT, INVEST, SAND)

Copper Alloy UNS Number.C90300

Previous DesignationB 143-1B

 Commercial Designation: modified “G” bronze, 88-8-0-4

Chemical  RequirementsComposition% Max Except as Indicated

Major Elements

Copper:86.0~89.0                                    

Tin:7.5~9.0

Lead:0.30

Zinc: 3.0~5.0

Iron: 0.20

Nickelincl.Cobalt: 1.0

Antimony: 0.20

Residual Elements

Sulfur: 0.05

Phosphorus: 0.05

Aluminum: 0.005

Silicon: 0.005

Mechanical Requirements

Tensile Strength,min

ksi: 40

MPa: 276

Yield Strength,ᴬ min

ksi: 18

MPa: 124

Elongation in 2 in.or 50 mm, min, %: 20

Keywords

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

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C90300 Tin bronze sleeve
C90300 Tin bronze

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