UNS C81100, Copper Casting Alloy

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UNS C81100, Copper Casting Alloy
Categories:	Metal; Nonferrous Metal; Copper Alloy; Copper Casting Alloy
Material Notes:	Casting methods recommended for this alloy: Centrifugal, Continuous, Investment, Permanent Mold, Plaster, and Sand. Applications: Electrical and thermal conductors; corrosion and oxidation resistant applications. Alloy does not respond to heat treating. Mechanical properties typical for sand-cast test bars.
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Physical Properties	Metric	English	Comments

Density	8.94 g/cc	0.323 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	44	44
Tensile Strength, Ultimate	170 MPa	24700 psi
Tensile Strength, Yield	62.0 MPa @Strain 0.5 %	8990 psi @Strain 0.5 %
Elongation at Break	40 %	40 %	in 50 mm (2 in.)
Modulus of Elasticity	115 GPa	16700 ksi
Fatigue Strength	62.0 MPa @# of Cycles 1.00e+8	8990 psi @# of Cycles 1.00e+8
Machinability	10 %	10 %	UNS C36000 (free-cutting brass) = 100%

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000001874 ohm-cm @Temperature 20.0 °C	0.000001874 ohm-cm @Temperature 68.0 °F	92% IACS
Magnetic Permeability	1.0	1.0

Thermal Properties	Metric	English	Comments
CTE, linear	16.9 µm/m-°C @Temperature 20.0 - 300 °C	9.39 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.380 J/g-°C @Temperature 20.0 °C	0.0908 BTU/lb-°F @Temperature 68.0 °F
Thermal Conductivity	346 W/m-K @Temperature 20.0 °C	2400 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Melting Point	1065 - 1083 °C	1949 - 1981 °F
Solidus	1065 °C	1949 °F
Liquidus	1083 °C	1981 °F
Shrinkage	2.1 %	2.1 %	Patternmaker's Shrinkage (1/4 in./ft.)

Component Elements Properties	Metric	English	Comments
Copper, Cu	>= 99.7 %	>= 99.7 %	includes silver
Other, total	<= 0.30 %	<= 0.30 %
P + Si	<= 0.010 %	<= 0.010 %

References for this datasheet.

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MC81100b1 / 11856

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