Copper, UNS C15720, 18 mm rod, 42% Cold Worked

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Copper, UNS C15720, 18 mm rod, 42% Cold Worked
Categories:	Metal; Nonferrous Metal; Copper Alloy
Material Notes:	Excellent cold workability. Fabricated by extrusion, drawing, rolling, impacting, heading, swaging, bending, machining, blanking. Applications: relay and switch springs, lead frames, contact supports, heat sinks, circuit breaker parts, rotor bars, resistance welding electrodes and wheels, connectors, high strength high temperature parts. Test specimen: rod - 18mm diameter; 42% cold worked.
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Physical Properties	Metric	English	Comments

Density	8.81 g/cc	0.318 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell B	78	78
Tensile Strength, Ultimate	510 MPa	74000 psi
Tensile Strength, Yield	485 MPa @Strain 0.2 %	70300 psi @Strain 0.2 %
Elongation at Break	14 %	14 %	in 50 mm.
Modulus of Elasticity	113 GPa	16400 ksi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000194 ohm-cm @Temperature 20.0 °C	0.00000194 ohm-cm @Temperature 68.0 °F

Thermal Properties	Metric	English	Comments
CTE, linear	19.6 µm/m-°C @Temperature 20.0 - 300 °C	10.9 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.380 J/g-°C	0.0908 BTU/lb-°F
Thermal Conductivity	353 W/m-K	2450 BTU-in/hr-ft²-°F
Melting Point	<= 1080 °C	<= 1980 °F
Solidus	1083 °C	1981 °F
Liquidus	1080 °C	1980 °F
Annealing Point	649 - 982 °C	1200 - 1800 °F

Processing Properties	Metric	English	Comments
Annealing Temperature	650 - 925 °C	1200 - 1700 °F

Component Elements Properties	Metric	English	Comments
Al2O3	0.35 - 0.45 %	0.35 - 0.45 %
Copper, Cu	99.49 - 99.6 %	99.49 - 99.6 %	Specified
Iron, Fe	<= 0.010 %	<= 0.010 %
Lead, Pb	<= 0.010 %	<= 0.010 %
Oxygen, O	<= 0.040 %	<= 0.040 %	Excluding Al2O3

References for this datasheet.

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MC15720b9 / 10690

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