High Conductivity Bronze, UNS C40500, OSO35 Temper flat products

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High Conductivity Bronze, UNS C40500, OSO35 Temper flat products
Categories:	Metal; Nonferrous Metal; Copper Alloy; Bronze
Material Notes:	Good to excellent corrosion resistance. Excellent cold workability. Fabricated by blanking, forming and drawing. Applications: meter clips, terminals, fuse clips, contact and relay springs, washers. Test specimen: flat products - 1mm thickness.
Key Words:	Copper, penny bronze
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Physical Properties	Metric	English	Comments

Density	8.83 g/cc	0.319 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell F	55	55
Hardness, Rockwell 30T	10	10
Tensile Strength, Ultimate	270 MPa	39200 psi
Tensile Strength, Yield	69.0 MPa @Strain 0.2 %	10000 psi @Strain 0.2 %
	83.0 MPa @Strain 0.5 %	12000 psi @Strain 0.5 %
Elongation at Break	49 %	49 %	In 50 mm
Modulus of Elasticity	110 GPa	16000 ksi	Hard
	125 GPa	18100 ksi	Annealed
Machinability	20 %	20 %	UNS C36000 (free-cutting brass) = 100%
Shear Strength	215 MPa	31200 psi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000420 ohm-cm	0.00000420 ohm-cm

Thermal Properties	Metric	English	Comments
Thermal Conductivity	165 W/m-K @Temperature 20.0 °C	1150 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Melting Point	1025 - 1060 °C	1877 - 1940 °F
Solidus	1025 °C	1877 °F
Liquidus	1060 °C	1940 °F

Processing Properties	Metric	English	Comments
Annealing Temperature	510 - 670 °C	950 - 1240 °F
Hot-Working Temperature	830 - 890 °C	1530 - 1630 °F

Component Elements Properties	Metric	English	Comments
Copper, Cu	95 %	95 %
Tin, Sn	1.0 %	1.0 %
Zinc, Zn	4.0 %	4.0 %

References for this datasheet.

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Overview of materials for Bronze

MC40500b2 / 11256

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