Chromium Copper, UNS C18500, TB00 Temper rod

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Chromium Copper, UNS C18500, TB00 Temper rod
Categories:	Metal; Nonferrous Metal; Copper Alloy
Material Notes:	Good to excellent corrosion resistance. Excellent cold workability; good hot workability. Applications: resistance welding electrodes, seam welding wheels, switch gear, electrode holder jaws, cable connectors, current carrying arms and shafts, circuit breaker parts, molds, spot welding tips, flash welding electrodes, electrical and thermal conductors requiring strength, switch contacts. Test specimen: rod - 13 mm diameter. UNS C18500 is inactive per the Copper Development Association. UNS C18200, UNS C18400, and UNS C18500 have similar compositions and mechanical properties.
Key Words:	CDA 185, CA185
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Physical Properties	Metric	English	Comments

Density	8.89 g/cc	0.321 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	310 MPa	45000 psi
Tensile Strength, Yield	97.0 MPa	14100 psi
Elongation at Break	40 %	40 %	in 50 mm
Modulus of Elasticity	130 GPa	18900 ksi
Poissons Ratio	0.30	0.30
Machinability	20 %	20 %	UNS C36000 (free-cutting brass) = 100%
Shear Modulus	50.0 GPa	7250 ksi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000216 ohm-cm @Temperature 20.0 °C	0.00000216 ohm-cm @Temperature 68.0 °F

Thermal Properties	Metric	English	Comments
CTE, linear	17.6 µm/m-°C @Temperature 20.0 - 100 °C	9.78 µin/in-°F @Temperature 68.0 - 212 °F
Specific Heat Capacity	0.385 J/g-°C	0.0920 BTU/lb-°F
Thermal Conductivity	171 W/m-K @Temperature 20.0 °C	1190 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Melting Point	1070 - 1075 °C	1960 - 1967 °F
Solidus	1070 °C	1960 °F
Liquidus	1075 °C	1967 °F

Processing Properties	Metric	English	Comments
Solution Temperature	980 - 1000 °C	1800 - 1830 °F	For 10-30 minutes, water quench
Aging Temperature	425 - 500 °C	797 - 932 °F	For 2-4 hours
Hot-Working Temperature	800 - 925 °C	1470 - 1700 °F

Component Elements Properties	Metric	English	Comments
Chromium, Cr	0.40 - 1.0 %	0.40 - 1.0 %
Copper, Cu	99.3 %	99.3 %
Lead, Pb	<= 0.015 %	<= 0.015 %
Lithium, Li	<= 0.040 %	<= 0.040 %
Phosphorus, P	<= 0.040 %	<= 0.040 %
Silver, Ag	0.080 - 0.12 %	0.080 - 0.12 %

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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MC18500c1 / 10800

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