High Leaded naval brass, UNS C48500

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High Leaded naval brass, UNS C48500
Categories:	Metal; Nonferrous Metal; Copper Alloy; Brass
Material Notes:	Fair to excellent corrosion resistance. Combines excellent hot forgeability and machinability. Fabricated by hot forging and pressing, machining. Applications: marine hardware, screw machine products, valve stems. Available as flat products, rod, shape.
Key Words:	CDA 485
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Physical Properties	Original Value	Comments

Density	8.44 g/cc
Grain Size	8.0 µm @Diameter 19.0 mm, Treatment Temp. 360 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
	8.0 µm @Diameter 19.0 mm, Treatment Temp. 400 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
	12 µm @Diameter 19.0 mm, Treatment Temp. 500 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
	20 µm @Diameter 19.0 mm, Treatment Temp. 600 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
	30 µm @Diameter 19.0 mm, Treatment Temp. 700 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
	45 µm @Diameter 19.0 mm, Treatment Temp. 800 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	379 - 531 MPa
	400 MPa @Diameter 19.0 mm, Treatment Temp. 800 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
	410 MPa @Diameter 19.0 mm, Treatment Temp. 700 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
	415 MPa @Diameter 19.0 mm, Treatment Temp. 600 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
	425 MPa @Diameter 19.0 mm, Treatment Temp. 500 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
	480 MPa @Diameter 19.0 mm, Treatment Temp. 400 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
	565 MPa @Diameter 19.0 mm, Treatment Temp. 300 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
	610 MPa @Diameter 19.0 mm, Treatment Temp. 200 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
Tensile Strength, Yield	172 - 365 MPa	Depending on temper
Elongation at Break	40 %	in 381 mm.
	10 % @Diameter 19.0 mm, Treatment Temp. 200 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
	14 % @Diameter 19.0 mm, Treatment Temp. 300 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
	18 % @Diameter 19.0 mm, Treatment Temp. 400 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
	32 % @Diameter 19.0 mm, Treatment Temp. 800 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
	34 % @Diameter 19.0 mm, Treatment Temp. 500 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
	34 % @Diameter 19.0 mm, Treatment Temp. 700 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
	35 % @Diameter 19.0 mm, Treatment Temp. 600 °C	high-leaded naval brass rod, cold drawn 30%, annealed 1h, initial grain size of 0.025mm
Modulus of Elasticity	100 GPa
	100 GPa
Poissons Ratio	0.28	Calculated
	0.28	calculated
Machinability	70 %	UNS C36000 (free-cutting brass) = 100%
	70 %	UNS C36000 (free-cutting brass) = 100%
Shear Modulus	39.0 GPa
	39.0 GPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000663 ohm-cm @Temperature 20.0 °C

Thermal Properties	Original Value	Comments
CTE, linear	21.2 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.380 J/g-°C
Thermal Conductivity	116 W/m-K
Melting Point	885 - 900 °C
Solidus	885 °C
Liquidus	900 °C

Processing Properties	Original Value	Comments
Annealing Temperature	425 - 600 °C
Hot-Working Temperature	650 - 760 °C
Recrystallization Temperature	360 °C	For 19 mm diameter rod cold drawn 30%

Component Elements Properties	Original Value	Comments
Copper, Cu	59 - 62 %
Lead, Pb	1.3 - 2.2 %
Tin, Sn	0.50 - 1.0 %
Zinc, Zn	37.5 %

References for this datasheet.

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MC48500b1 / 11483

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