UNS C81300, Copper Casting Alloy

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UNS C81300, Copper Casting Alloy
Categories:	Metal; Nonferrous Metal; Copper Alloy; Copper Casting Alloy
Material Notes:	Sum of Copper and named elements should total a minimum of 99.5%. Casting methods recommended for this alloy: Centrifugal, Continuous, Investment, Permanent Mold, Plaster, and Sand. Applications: Higher hardness electrical and thermal conductors. Mechanical properties typical for separately cast heat-treated (TF00 temper) test bars. Inactive per the Copper Development Association.
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Physical Properties	Metric	English	Comments

Density	8.81 g/cc	0.318 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	89	89	500 kg, typical
Tensile Strength, Ultimate	>= 365 MPa	>= 52900 psi
Tensile Strength, Yield	>= 250 MPa @Strain 0.2 %	>= 36300 psi @Strain 0.2 %
Elongation at Break	>= 11 %	>= 11 %	in 50 mm
Modulus of Elasticity	110 GPa	16000 ksi
Machinability	20 %	20 %	UNS C36000 (free-cutting brass) = 100%

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000002874 ohm-cm @Temperature 20.0 °C	0.000002874 ohm-cm @Temperature 68.0 °F

Thermal Properties	Metric	English	Comments
CTE, linear	18.0 µm/m-°C @Temperature 20.0 - 300 °C	10.0 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.390 J/g-°C	0.0932 BTU/lb-°F
Thermal Conductivity	260 W/m-K @Temperature 20.0 °C	1800 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Melting Point	1066 - 1093 °C	1951 - 1999 °F
Solidus	1066 °C	1951 °F
Liquidus	1093 °C	1999 °F
Shrinkage	2.1 %	2.1 %	Patternmaker's Shrinkage (1/4 in./ft.)

Processing Properties	Metric	English	Comments
Annealing Temperature	260 °C	500 °F	Stress-Relieving Temperature
Solution Temperature	980 - 1100 °C	1800 - 2010 °F	Heat-treating
Aging Temperature	480 °C	896 °F

Component Elements Properties	Metric	English	Comments
Beryllium, Be	0.020 - 0.10 %	0.020 - 0.10 %
Cobalt, Co	0.60 - 1.0 %	0.60 - 1.0 %
Copper, Cu	>= 98.5 %	>= 98.5 %

References for this datasheet.

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MC81300b1 / 11857

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