C83600 Leaded red brass B 584

C83600 Leaded red brass B 584

 (CENT, INVEST, SAND)

Copper Alloy UNS Number.C83600

Previous DesignationB 145-4A

Commercial Designation85-5-5-5 or No. 1 composition

Chemical  RequirementsComposition% Max Except as Indicated

Major Elements

Copper:84.0~86.0

Tin:4.0~6.0

Lead:4.0~6.0

Zinc:4.0~6.0

Iron:0.30

Nickelincl.Cobalt:1.0ᴬ

Antimony:0.25

Residual  Elements

Sulfur:0.08

Phosphorus:0.05

Aluminum:0.005

Silicon :0.005

(ᴬIn determining copper minimum, copper may be calculated as copper plus nickel.

ᴮIt is possible that the mechanical requirements of copper alloy UNS No. C94700 (heat treated) will not be obtained if the lead content exceeds 0.01 %

ᶜNiobium 0.10–0.30 %, boron 0.001 % max, bismuth 0.001 % max, magnesium 0.0005–0.15 %, and titanium 0.01 % max)

Mechanical Requirements

Tensile Strength,min

ksiᴮ:30

MPaᶜ:207

Yield Strength,ᴬ min

ksiᴮ:14

MPaᶜ:97

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

(ᴬYield strength shall be determined as the stress producing an elongation under

load of 0.5 %, that is, 0.01 in. (0.254 mm) in a gage length of 2 in. or 50 mm.

ᴮksi = 1000 psi.

ᶜSee Appendix X1.

ᴰYield strength 0.2 %, offset)

Keywords

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

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