Alcoloy Copper, UNS C68800

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Alcoloy Copper, UNS C68800
Categories:	Metal; Nonferrous Metal; Copper Alloy
Material Notes:	Good to excellent corrosion resistance. Excellent hot and cold formability. Fabricated by blanking, drawing, forming and bending, shearing and stamping. Applications: springs, switches, contacts, relays, drawn parts. Available as flat products.
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Physical Properties	Metric	English	Comments

Density	8.20 g/cc	0.296 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	565 - 889 MPa	81900 - 129000 psi
Tensile Strength, Yield	379 - 786 MPa	55000 - 114000 psi	Depending on temper
Elongation at Break	36 %	36 %	in 50.8 mm.
Modulus of Elasticity	116 GPa	16800 ksi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000210 ohm-cm	0.0000210 ohm-cm	8.2% IACS

Thermal Properties	Metric	English	Comments
CTE, linear	18.0 µm/m-°C @Temperature 20.0 - 300 °C	10.0 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.377 J/g-°C	0.0900 BTU/lb-°F
Thermal Conductivity	69.0 W/m-K @Temperature 20.0 °C	479 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Melting Point	950 - 965 °C	1740 - 1770 °F
Solidus	950 °C	1740 °F
Liquidus	965 °C	1770 °F
Annealing Point	399 - 593 °C	750 - 1100 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	3.0 - 3.8 %	3.0 - 3.8 %
Cobalt, Co	0.25 - 0.55 %	0.25 - 0.55 %
Copper, Cu	72.3 - 74.7 %	72.3 - 74.7 %
Iron, Fe	<= 0.050 %	<= 0.050 %
Lead, Pb	<= 0.050 %	<= 0.050 %
Other, total	<= 0.010 %	<= 0.010 %
Zinc, Zn	22.7 %	22.7 %

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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MC68800b1 / 11683

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