Gilding Copper, UNS C21000, OSO15 Temper

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Gilding Copper, UNS C21000, OSO15 Temper
Categories:	Metal; Nonferrous Metal; Copper Alloy
Material Notes:	Good to excellent corrosion resistance. Excellent cold workability, good hot workability for blanking, coining, drawing, piercing and punching, shearing, spinning, squeezing and swaging, stamping. Applications: coins, medals, tokens, bullet jackets, firing pin supports, fuse caps, primers, emblems, plaques, base for gold plate. Available as flat products and wire. 0.015 mm grain size.
Key Words:	CZ125, ISO CuZn5, CEN CW500L, Cap copper, 95/5 brass
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Physical Properties	Metric	English	Comments

Density	8.86 g/cc	0.320 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell F	60	60
Hardness, Rockwell 30T	15	15
Tensile Strength, Ultimate	260 MPa	37700 psi
	235 MPa @Treatment Temp. 700 °C, Thickness 1.00 mm	34100 psi @Treatment Temp. 1290 °F, Thickness 0.0394 in	cold rolled 50%, annealed 1h
	245 MPa @Treatment Temp. 600 °C, Thickness 1.00 mm	35500 psi @Treatment Temp. 1110 °F, Thickness 0.0394 in	cold rolled 50%, annealed 1h
	260 MPa @Treatment Temp. 500 °C, Thickness 1.00 mm	37700 psi @Treatment Temp. 932 °F, Thickness 0.0394 in	cold rolled 50%, annealed 1h
	330 MPa @Treatment Temp. 400 °C, Thickness 1.00 mm	47900 psi @Treatment Temp. 752 °F, Thickness 0.0394 in	cold rolled 50%, annealed 1h
	425 MPa @Treatment Temp. 300 °C, Thickness 1.00 mm	61600 psi @Treatment Temp. 572 °F, Thickness 0.0394 in	cold rolled 50%, annealed 1h
	455 MPa @Treatment Temp. 200 °C, Thickness 1.00 mm	66000 psi @Treatment Temp. 392 °F, Thickness 0.0394 in	cold rolled 50%, annealed 1h
	460 MPa @Treatment Temp. 100 °C, Thickness 1.00 mm	66700 psi @Treatment Temp. 212 °F, Thickness 0.0394 in	cold rolled 50%, annealed 1h
	465 MPa @Treatment Temp. 15.0 °C, Thickness 1.00 mm	67400 psi @Treatment Temp. 59.0 °F, Thickness 0.0394 in	cold rolled 50%, annealed 1h
Tensile Strength, Yield	97.0 MPa	14100 psi
Elongation at Break	42 %	42 %	In 50 mm
Modulus of Elasticity	115 GPa	16700 ksi
Poissons Ratio	0.307	0.307
Machinability	20 %	20 %	UNS C36000 (free-cutting brass) = 100%
Shear Modulus	44.0 GPa	6380 ksi
Shear Strength	205 MPa	29700 psi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000244 ohm-cm @Temperature 1100 °C	0.00000244 ohm-cm @Temperature 2010 °F	liquid phase
	0.00000310 ohm-cm @Temperature 20.0 °C	0.00000310 ohm-cm @Temperature 68.0 °F	annealed
Magnetic Susceptibility	-0.0000125 - -1.00e-6	-0.0000125 - -1.00e-6	SI units

Thermal Properties	Metric	English	Comments
CTE, linear	18.0 µm/m-°C @Temperature 20.0 - 300 °C	10.0 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.380 J/g-°C	0.0908 BTU/lb-°F
Thermal Conductivity	234 W/m-K @Temperature 20.0 °C	1620 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Melting Point	1050 - 1065 °C	1920 - 1949 °F
Solidus	1050 °C	1920 °F
Liquidus	1065 °C	1949 °F

Processing Properties	Metric	English	Comments
Annealing Temperature	425 - 800 °C	797 - 1470 °F
Hot-Working Temperature	750 - 875 °C	1380 - 1610 °F

Component Elements Properties	Metric	English	Comments
Copper, Cu	94 - 96 %	94 - 96 %
Iron, Fe	<= 0.050 %	<= 0.050 %
Lead, Pb	<= 0.050 %	<= 0.050 %
Zinc, Zn	5.0 %	5.0 %

Descriptive Properties
Velocity of Sound	3.78 km/s		at 20°C

References for this datasheet.

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MC21000b4 / 10981

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