Leaded Yellow Brass, UNS C85800, Copper Casting Alloy, Die Castings

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Leaded Yellow Brass, UNS C85800, Copper Casting Alloy, Die Castings
Categories:	Metal; Nonferrous Metal; Copper Alloy; Brass; Copper Casting Alloy
Material Notes:	Casting methods recommended for this alloy: Die. Applications: General purpose die casting alloy having moderate strength. Classified under: Yellow brasses and leaded yellow brasses. ASTM B176; formerly ASTM Z30A Typical data for die castings, separately cast test bars.. Alloy does not respond to heat treating. Casting shrinkage allowance is 2%
Key Words:	leaded yellow brass, 63-1-1-35, CA 858, ASTM B30, ASTM B176 (CA858), ASTM B176, ASTM Z30A, SAE J462, Ingot code no. 406, MIL-C-15345 (Alloy 3)
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Physical Properties	Metric	English	Comments

Density	8.41 g/cc	0.304 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell B	102	102
Tensile Strength, Ultimate	380 MPa	55100 psi
Tensile Strength, Yield	205 MPa @Strain 0.5 %	29700 psi @Strain 0.5 %
Elongation at Break	15 %	15 %	In 50 mm
Modulus of Elasticity	105 GPa	15200 ksi
Machinability	80 %	80 %	UNS C36000 (free-cutting brass) = 100%

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000078368 ohm-cm @Temperature 20.0 °C	0.0000078368 ohm-cm @Temperature 68.0 °F	22% IACS
Magnetic Permeability	1.0	1.0

Thermal Properties	Metric	English	Comments
CTE, linear	22.0 µm/m-°C @Temperature 20.0 - 260 °C	12.2 µin/in-°F @Temperature 68.0 - 500 °F
Specific Heat Capacity	0.376 J/g-°C	0.0899 BTU/lb-°F
Thermal Conductivity	83.9 W/m-K @Temperature 20.0 °C	582 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Melting Point	903 - 920 °C	1660 - 1690 °F
Solidus	903 °C	1660 °F
Liquidus	920 °C	1690 °F
Shrinkage	1.6 %	1.6 %	Patternmaker's Shrinkage (3/16 in./ft.)

Component Elements Properties	Metric	English	Comments
Copper, Cu	>= 58 %	>= 58 %
Iron, Fe	<= 0.50 %	<= 0.50 %
Lead, Pb	<= 1.5 %	<= 1.5 %
Manganese, Mn	<= 0.25 %	<= 0.25 %
Other, total	<= 0.50 %	<= 0.50 %
Tin, Sn	<= 1.5 %	<= 1.5 %
Zinc, Zn	35 %	35 %

References for this datasheet.

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MC85800b1 / 11911

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