Copper Alloy, UNS C42520, H08 Temper, Flat Products

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Copper Alloy, UNS C42520, H08 Temper, Flat Products
Categories:	Metal; Nonferrous Metal; Copper Alloy
Material Notes:	Temper: Spring Fabrication Properties: Excellent Suitability – Soldering, Brazing, Capacity for Being Cold Worked; Good Suitability – Oxyacetylene Welding, Gas Shielded Arc Welding, Butt Weld; Fair Suitability – Capacity for Being Hot Formed Typical Uses: Terminals, automotive; Connectors, electronic; Contact springs; Lead Frames Applicable Specifications: Bar – ASTM B591; Strip – ASTM B888/B88M, ASTM B591
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Physical Properties	Metric	English	Comments

Density	8.80 g/cc	0.318 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength	717 MPa	104000 psi
Tensile Strength, Yield	689 MPa	100000 psi	0.2% Offset
Elongation at Break	3.0 %	3.0 %
Tensile Modulus	110 GPa	16000 ksi
Machinability	30 %	30 %

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000570 ohm-cm	0.00000570 ohm-cm	30% IACS

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
Thermal Conductivity	10.8 W/m-K	75.0 BTU-in/hr-ft²-°F
Melting Point	1010 - 1040 °C	1850 - 1900 °F
Solidus	1010 °C	1850 °F
Liquidus	1040 °C	1900 °F
Annealing Point	371 - 732 °C	700 - 1350 °F

Component Elements Properties	Metric	English	Comments
Copper, Cu	88 - 91 %	88 - 91 %
Iron, Fe	0.050 - 0.20 %	0.050 - 0.20 %
Lead, Pb	<= 0.050 %	<= 0.050 %
Nickel, Ni	0.050 - 0.20 %	0.050 - 0.20 %
Phosphorus, P	0.010 - 0.20 %	0.010 - 0.20 %
Tin, Sn	1.5 - 3.0 %	1.5 - 3.0 %
Zinc, Zn	5.6 - 10.4 %	5.6 - 10.4 %	As Balance

Descriptive Properties
US EPA Registered Antimicrobial	Yes

References for this datasheet.

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MC42520x7 / 291948

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