Copper, UNS C26800 (Yellow brass), OSO25 Temper flat products

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Copper, UNS C26800 (Yellow brass), OSO25 Temper flat products
Categories:	Metal; Nonferrous Metal; Copper Alloy; Brass
Material Notes:	Fair to excellent corrosion resistance. Excellent cold workability. Applications: radiator cores and tanks, flashlight shells, lamp fixtures, fasteners, locks, hinges, plumbing accessories, pins, rivets. Test specimen: flat products - 1mm thickness.
Key Words:	ASTM B36, ASTM B587, SAE J461, SAE J463, MIL-W-6712, CDA 268, ISO CuZn33, CEN CW506L, 67/33 brass, ISO CuZn35, 65/35 brass
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Physical Properties	Metric	English	Comments

Density	8.47 g/cc	0.306 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell F	72	72
Hardness, Rockwell 30T	36	36
Tensile Strength, Ultimate	350 MPa	50800 psi
Tensile Strength, Yield	130 MPa	18900 psi	In 50 mm
Elongation at Break	55 %	55 %
Tensile Modulus	103 GPa	15000 ksi
	105 GPa	15200 ksi
Machinability	30 %	30 %	UNS C36000 (free-cutting brass) = 100%
Shear Modulus	35.0 GPa	5080 ksi
Shear Strength	240 MPa	34800 psi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000640 ohm-cm @Temperature 20.0 °C	0.00000640 ohm-cm @Temperature 68.0 °F	annealed

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	116 W/m-K	805 BTU-in/hr-ft²-°F
	116 W/m-K @Temperature 20.0 °C	805 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Melting Point	905 - 930 °C	1660 - 1710 °F
Solidus	905 °C	1660 °F
Liquidus	930 °C	1710 °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	700 - 820 °C	1290 - 1510 °F
Recrystallization Temperature	290 °C	554 °F	For strip cold rolled 50% to 1 mm thickness, 0.035 mm initial grain size

Component Elements Properties	Metric	English	Comments
Copper, Cu	64 - 68.5 %	64 - 68.5 %
Iron, Fe	<= 0.050 %	<= 0.050 %
Lead, Pb	<= 0.15 %	<= 0.15 %
Zinc, Zn	31.3 - 36 %	31.3 - 36 %

References for this datasheet.

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MC26800b4 / 11109

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