Copper Alloy, UNS C43400, H08 Temper, Flat Products

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Copper Alloy, UNS C43400, 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, Spot Weld, Butt Weld; Fair Suitability – Capacity for Being Hot Formed Common Fabrication Processes: Blanking; Bonding; Drawing; Shearing; Stamping Typical Uses: Blades; Contacts; Electrical Connectors; Relay Springs; Switch Parts Applicable Specifications: Bar – ASTM B591; Plate – ASTM B591; Sheet – ASTM B591; Strip – ASTM B591
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Physical Properties	Metric	English	Comments

Density	8.75 g/cc	0.316 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell B	86	86
Hardness, Rockwell 30T	76	76
Tensile Strength	621 MPa	90000 psi
Tensile Strength, Ultimate	372 MPa	54000 psi	in Shear
Tensile Strength, Yield	510 MPa	74000 psi	0.5% Ext
Elongation at Break	4.0 %	4.0 %
Tensile Modulus	124 GPa	18000 ksi	(annealed samples)
Modulus of Rigidity	41.4 GPa	6000 ksi
Machinability	30 %	30 %

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000550 ohm-cm	0.00000550 ohm-cm	31% IACS

Thermal Properties	Metric	English	Comments
CTE, linear	18.9 µm/m-°C @Temperature 20.0 - 300 °C	10.5 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.377 J/g-°C	0.0900 BTU/lb-°F
Thermal Conductivity	11.4 W/m-K	79.0 BTU-in/hr-ft²-°F
Melting Point	988 - 1020 °C	1810 - 1870 °F
Solidus	988 °C	1810 °F
Liquidus	1020 °C	1870 °F
Annealing Point	427 - 677 °C	800 - 1250 °F

Processing Properties	Metric	English	Comments
Hot-Working Temperature	816 - 871 °C	1500 - 1600 °F

Component Elements Properties	Metric	English	Comments
Copper, Cu	84 - 87 %	84 - 87 %
Iron, Fe	<= 0.050 %	<= 0.050 %
Lead, Pb	<= 0.050 %	<= 0.050 %
Tin, Sn	0.40 - 1.0 %	0.40 - 1.0 %
Zinc, Zn	12 - 15.6 %	12 - 15.6 %	As Balance

Descriptive Properties
US EPA Registered Antimicrobial	Yes

References for this datasheet.

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MC43400y1 / 291975

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