Copper-Nickel, Chromium Bearing, UNS C72200, O50 Temper, Tube

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Copper-Nickel, Chromium Bearing, UNS C72200, O50 Temper, Tube
Categories:	Metal; Nonferrous Metal; Copper Alloy
Material Notes:	Temper: Light Anneal Fabrication Properties: Excellent Suitability – Gas Shielded Arc Welding; Good Suitability – Soldering, Brazing, Coated Metal Arc Welding, Spot Weld, Seam Weld, Butt Weld, Capacity for Being Cold Worked, Capacity for Being Hot Formed; Fair Suitability – Oxyacetylene Welding Common Fabrication Processes: Bending; Forming; Welding Typical uses: Condenser Tubing; Heat Exchanger Tubing; Salt Water Piping Applicable Specifications: Bar – ASTM B122/B122M; Condenser & Heat Exchanger Tube with Integral Fins – ASTM B956/B956M; Pipe – ASTM B466/B466M; Pipe – ASTM B466/B466M; Plate - Condenser Tube ASTM B171/B171M, ASTM B122/B122M; Sheet – ASTM B122/B122M; Strip – ASTM B122/B122M; Tube – ASTM B543/B543M, Condenser Tube ASTM B111/B111M; ASTM B395/B395M, ASTM B552, ASTM B359/B359M
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Physical Properties	Metric	English	Comments

Density	8.94 g/cc	0.323 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength	317 MPa	46000 psi
Tensile Strength, Yield	124 MPa	18000 psi	0.2% Offset
Elongation at Break	46 %	46 %
Tensile Modulus	138 GPa	20000 ksi
Modulus of Rigidity	56.5 GPa	8200 ksi
Poissons Ratio	0.22	0.22	Calculated

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000260 ohm-cm	0.0000260 ohm-cm	6.53% IACS

Thermal Properties	Metric	English	Comments
CTE, linear	15.8 µm/m-°C @Temperature 20.0 - 300 °C	8.80 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.393 J/g-°C	0.0940 BTU/lb-°F
Thermal Conductivity	2.87 W/m-K	19.9 BTU-in/hr-ft²-°F
Melting Point	1122 - 1176 °C	2052 - 2148 °F
Solidus	1122 °C	2052 °F
Liquidus	1176 °C	2148 °F
Annealing Point	732 - 816 °C	1350 - 1500 °F

Processing Properties	Metric	English	Comments
Hot-Working Temperature	899 - 1040 °C	1650 - 1900 °F

Component Elements Properties	Metric	English	Comments
Chromium, Cr	0.30 - 0.70 %	0.30 - 0.70 %
Copper, Cu	78.2 - 84.2 %	78.2 - 84.2 %	As Balance
Iron, Fe	0.50 - 1.0 %	0.50 - 1.0 %
Lead, Pb	<= 0.050 %	<= 0.050 %
Manganese, Mn	<= 1.0 %	<= 1.0 %
Nickel, Ni	15 - 18 %	15 - 18 %
Silicon, Si	<= 0.030 %	<= 0.030 %
Titanium, Ti	<= 0.030 %	<= 0.030 %
Zinc, Zn	<= 1.0 %	<= 1.0 %

References for this datasheet.

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MC72200x3 / 293097

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