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	Original Value	Comments

Density	8.81 g/cc

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

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.000002874 ohm-cm @Temperature 20.0 °C

Thermal Properties	Original Value	Comments
CTE, linear	18.0 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.390 J/g-°C
Thermal Conductivity	260 W/m-K @Temperature 20.0 °C
Melting Point	1066 - 1093 °C
Solidus	1066 °C
Liquidus	1093 °C
Shrinkage	2.1 %	Patternmaker's Shrinkage (1/4 in./ft.)

Processing Properties	Original Value	Comments
Annealing Temperature	260 °C	Stress-Relieving Temperature
Solution Temperature	980 - 1100 °C	Heat-treating
Aging Temperature	480 °C

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

References for this datasheet.

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MC81300b1 / 11857

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