Copper, UNS C42500

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Copper, UNS C42500
Categories:	Metal; Nonferrous Metal; Copper Alloy
Material Notes:	Good to excellent corrosion resistance. Excellent cold workability. Fabricated by blanking, piercing, forming and drawing. Applications: electrical switches, springs, terminals, connectors, fuse clips, pen clips, weather stripping. Available as flat products.
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Physical Properties	Metric	English	Comments

Density	8.78 g/cc	0.317 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	310 - 634 MPa	45000 - 92000 psi
Tensile Strength, Yield	124 - 524 MPa	18000 - 76000 psi	Depending on temper
Elongation at Break	49 %	49 %	in 50.8 mm.
Modulus of Elasticity	110 GPa	16000 ksi	Hard
	110 GPa	16000 ksi	Hard
	125 GPa	18100 ksi	Annealed
	125 GPa	18100 ksi	Annealed
Machinability	30 %	30 %	UNS C36000 (free-cutting brass) = 100%
	30 %	30 %	UNS C36000 (free-cutting brass) = 100%

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000620 ohm-cm @Temperature 20.0 °C	0.00000620 ohm-cm @Temperature 68.0 °F

Thermal Properties	Metric	English	Comments
CTE, linear	18.4 µm/m-°C @Temperature 20.0 - 100 °C	10.2 µin/in-°F @Temperature 68.0 - 212 °F
Specific Heat Capacity	0.380 J/g-°C	0.0908 BTU/lb-°F
Thermal Conductivity	120 W/m-K @Temperature 20.0 °C	833 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Melting Point	1010 - 1030 °C	1850 - 1890 °F
Solidus	1010 °C	1850 °F
Liquidus	1030 °C	1890 °F
Annealing Point	427 - 704 °C	800 - 1300 °F

Processing Properties	Metric	English	Comments
Annealing Temperature	425 - 700 °C	797 - 1290 °F
Hot-Working Temperature	790 - 840 °C	1450 - 1540 °F

Component Elements Properties	Metric	English	Comments
Copper, Cu	87 - 90 %	87 - 90 %
Iron, Fe	<= 0.050 %	<= 0.050 %
Lead, Pb	<= 0.050 %	<= 0.050 %
Phosphorus, P	<= 0.35 %	<= 0.35 %
Tin, Sn	1.5 - 3.0 %	1.5 - 3.0 %
Zinc, Zn	9.5 %	9.5 %

References for this datasheet.

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MC42500b1 / 11322

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