UNS C81500, Copper Casting Alloy

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UNS C81500, 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/or thermal conductors used as structural members where strength and hardness greater than that of UNS C8100-8110 are required. Mechanical properties typical for sand cast test bars, heat treated.
Key Words:	chromium copper, chrome copper, CA 815
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Physical Properties	Original Value	Comments

Density	8.82 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	105
Tensile Strength, Ultimate	350 MPa
Tensile Strength, Yield	275 MPa
Elongation at Break	17 %	in 50 mm
Modulus of Elasticity	115 GPa
Poissons Ratio	0.32
Fatigue Strength	105 MPa @# of Cycles 1.00e+8
Machinability	20 %	UNS C36000 (free-cutting brass) = 100%
Shear Modulus	44.0 GPa
Izod Impact	41.0 J
Charpy Impact	27.0 J	V-notch

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000210 ohm-cm	Precipitation hardened
	0.00000383 ohm-cm	Solution heat treated
Magnetic Permeability	1.0

Thermal Properties	Original Value	Comments
CTE, linear	17.1 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.376 J/g-°C
Thermal Conductivity	315 W/m-K @Temperature 20.0 °C
Melting Point	1075 - 1085 °C
Solidus	1075 °C
Liquidus	1085 °C
Shrinkage	2.1 %	Patternmaker's Shrinkage (1/4 in./ft.)

Processing Properties	Original Value	Comments
Solution Temperature	1000 - 1010 °C
Aging Temperature	480 °C

Component Elements Properties	Original Value	Comments
Chromium, Cr	0.40 - 1.5 %
Copper, Cu	98 - 99.6 %
Lead, Pb	<= 0.015 %
Other, total	<= 0.50 %
Phosphorus, P	<= 0.040 %

References for this datasheet.

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MC81500b1 / 11859

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