Medium-leaded brass, UNS C34000, OSO25 Temper wire

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Medium-leaded brass, UNS C34000, OSO25 Temper wire
Categories:	Metal; Nonferrous Metal; Copper Alloy; Brass
Material Notes:	Fair to excellent corrosion resistance. Fabricated by blanking, heading and upsetting, machining, piercing and punching, roll threading and knurling, stamping. Applications: couplings, free machining screws and rivets, gears, nuts, or tire valve stems. Test specimen: wire - 2mm diameter.
Key Words:	340 brass, CZ118, ISO CuZn35Pb1, CEN CW600N
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Physical Properties	Metric	English	Comments

Density	8.47 g/cc	0.306 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	345 MPa	50000 psi
Elongation at Break	50 %	50 %	In 50 mm
Modulus of Elasticity	105 GPa	15200 ksi
Poissons Ratio	0.346	0.346
Machinability	60 %	60 %	UNS C36000 (free-cutting brass) = 100%
Shear Modulus	39.0 GPa	5660 ksi
Shear Strength	235 MPa	34100 psi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000660 ohm-cm	0.00000660 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	20.3 µm/m-°C @Temperature 20.0 - 300 °C	11.3 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.380 J/g-°C	0.0908 BTU/lb-°F
Thermal Conductivity	115 W/m-K @Temperature 20.0 °C	798 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Melting Point	885 - 925 °C	1630 - 1700 °F
Solidus	885 °C	1630 °F
Liquidus	925 °C	1700 °F
Annealing Point	427 - 649 °C	800 - 1200 °F

Processing Properties	Metric	English	Comments
Annealing Temperature	425 - 650 °C	797 - 1200 °F
Recrystallization Temperature	288 °C	550 °F

Component Elements Properties	Metric	English	Comments
Copper, Cu	62.5 - 66.5 %	62.5 - 66.5 %
Iron, Fe	<= 0.10 %	<= 0.10 %
Lead, Pb	0.80 - 1.4 %	0.80 - 1.4 %
Other, total	<= 0.50 %	<= 0.50 %
Zinc, Zn	34 %	34 %	As remainder

References for this datasheet.

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MC34000c1 / 11195

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