UNS C72200

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The following datasheet provides further information about UNS C72200 chromium-bearing copper nickel alloy.

Chemical Composition

The following table shows the chemical composition of UNS C72200 chromium-bearing copper nickel alloy.

Element	Content (%)
Cu	82.0
Ni	16.0
Cr	0.5
Fe	0.8
Mn	0.5

Physical Properties

The physical properties of UNS C72200 chromium-bearing copper nickel alloy are outlined in the following table.

Properties	Metric	Imperial
Density	8.94 g/cm3	0.323 lb/in³

Mechanical Properties

The mechanical properties of  UNS C72200 chromium-bearing copper nickel alloy are tabulated below.

Properties	Metric	Imperial
Tensile strength (O61 temper)	315 MPa	45700 psi
Tensile strength (H04 temper)	480 MPa	69600 psi
Yield strength (@strain 0.200 %, O61 temper)	125 MPa	18100 psi
Yield strength (@strain 0.200 %, H04 temper)	455 MPa	66000 psi
Elongation at break (H04 temper)	6.00%	6.00%
Elongation at break (O61 temper)	46.00%	46.00%
Elastic modulus	117 GPa	17000 ksi
Poisson’s ratio	0.34	0.34
Shear modulus	55.0 GPa	7980 ksi

Thermal Properties

The thermal properties of UNS C72200 chromium-bearing copper nickel alloy are tabulated below.

Properties	Metric	Imperial
Thermal expansion co-efficient (@20-300°C/68-572°F)	15.8 µm/m°C	8.78 µin/in°F
Thermal conductivity (@20°C/ 68°F )	34.5 W/mK	239 BTU in/hr.ft².°F