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C85430 Cast BRASSES Copper-Zinc Alloys (Yellow Brasses) true false https://api.copper.org/alloys.xhtml/C85430
Chemical Composition
Elements
Cu(1) Pb Sn Zn Fe P Ni(2) Al B Bi Mn Si
(1) Cu + Sum of Named Elements 99.5% min.
(2) Ni value includes Co.
Min (%) 66.0 0.01 0.6 27.0 0.01 0.50
Max (%) 72.0 0.25 1.7 31.0 0.30 0.15 0.30 1.2 0.02 0.10 0.30 0.10
Mechanical Properties *
Form Temper Temper Code Tensile Strength
(ksi)		 YS-0.2% Offset
(ksi)		 Elongation
(%)		 Brinell Hardness, 500 kg load Impact Strength
(ft-lbs)
* Measured at room temperature, 68°F (20°C).
Castings As Sand Cast M01 28 Min
36 Typ
 10 Min
12 Typ
 15 Min
 65 Min
 17 Min
Physical Properties
Melting Point - Liquidus°F 1704
Melting Point - Solidus°F 1623
Densitylb/cu in. at 68°F 0.303
Specific Gravity 8.38
Electrical Conductivity% IACS at 68°F 21.9
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 58.4
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) 11.3
Modulus of Elasticity in Tensionksi 13900
Modulus of Rigidityksi 5300
Poisson's Ratio 0.32
Casting Characteristics
Casting Attribute Level
Casting Yield Medium
Drossing Medium
Effect of Section Size Medium
Fluidity Medium
Gassing Medium
Patternmakers Shrinkage inches per inch 3/16
Shrinkage During Freezing High
Fabrication Properties

No fabrication properties for this alloy

Common Fabrication Processes

No fabrication process properties for this alloy

Thermal Properties
Treatment Minimum* Maximum* Medium
* Temperature is measured in Fahrenheit.
Annealing Atmosphere
Hot Working Temperature 600
Precipitation Treatment Water
Solution Treatment 100 200 Air
Stress Relief 500
Typical Uses

No information for this alloy

Applicable Specifications

No applicable specifications for this alloy

Corrosion Properties

No Corrosion Properties Available.