Copper nickel 20%, UNS C71000, H10 Temper flat products

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Copper nickel 20%, UNS C71000, H10 Temper flat products
Categories:	Metal; Nonferrous Metal; Copper Alloy
Material Notes:	Excellent corrosion resistance. Good hot and cold workability. Fabricated by blanking, forming, and bending. Applications: communication relays, condensers, condenser plates, electrical springs, evaporator and heat exchanger tubes, ferrules, resistors. Test specimen: flat products - 1mm thickness.
Key Words:	CDA 710 (80/20); 80-20 Cupronickel
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Physical Properties	Original Value	Comments

Density	8.94 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Rockwell B	86
Tensile Strength, Ultimate	585 MPa
Tensile Strength, Yield	540 MPa @Strain 0.5 %
	545 MPa @Strain 0.2 %
Elongation at Break	3.0 %	in 50 mm
Modulus of Elasticity	140 GPa
Poissons Ratio	0.35	Calculated
Machinability	20 %	UNS C36000 (free-cutting brass) = 100%
Shear Modulus	52.0 GPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000265 ohm-cm @Temperature 20.0 °C

Thermal Properties	Original Value	Comments
CTE, linear	16.4 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.380 J/g-°C
Thermal Conductivity	36.0 W/m-K
Melting Point	1150 - 1200 °C
Solidus	1150 °C
Liquidus	1200 °C
Annealing Point	1200 - 1500 °F

Processing Properties	Original Value	Comments
Annealing Temperature	650 - 825 °C
Hot-Working Temperature	875 - 1050 °C

Component Elements Properties	Original Value	Comments
Copper, Cu	79 %
Iron, Fe	<= 1.0 %
Lead, Pb	<= 0.050 %
Manganese, Mn	<= 1.0 %
Nickel, Ni	19 - 23 %
Other, total	<= 0.50 %
Zinc, Zn	<= 1.0 %

References for this datasheet.

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MC71000c1 / 11739

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