Leaded High-Strength Yellow Brass, UNS C86400, Copper Casting Alloy

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Leaded High-Strength Yellow Brass, UNS C86400, Copper Casting Alloy
Categories:	Metal; Nonferrous Metal; Copper Alloy; Copper Casting Alloy
Material Notes:	Casting methods recommended for this alloy: Centrifugal, Die, Permanent Mold, Plaster, and Sand. Applications: Free machining manganese bronze valve stems, marine fittings, lever arms, brackets, light-duty gears. Classified under: Manganese and leaded manganese bronze alloys. ASTM B584; formerly ASTM B147-7A, ASTM B132-A As cast values below are for sand casting. Alloy does not respond to heat treating
Key Words:	Leaded Manganese Bronze, ASTM B584; ASTM B147-7A, ASTM B132-A
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Physical Properties	Metric	English	Comments

Density	8.32 g/cc	0.301 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	105	105
Tensile Strength, Ultimate	450 MPa	65300 psi
Tensile Strength, Yield	170 MPa	24700 psi
Elongation at Break	20 %	20 %	in 50 mm
Modulus of Elasticity	96.0 GPa	13900 ksi
Compressive Strength	150 MPa	21800 psi	at permanent set of 0.1%
	600 MPa	87000 psi	at permanent set of 10%
Machinability	60 %	60 %	UNS C36000 (free-cutting brass) = 100%
Izod Impact	40.0 J	29.5 ft-lb
Charpy Impact	34.0 J	25.1 ft-lb	V-notch

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000078368 ohm-cm @Temperature 20.0 °C	0.0000078368 ohm-cm @Temperature 68.0 °F	22% IACS

Thermal Properties	Metric	English	Comments
CTE, linear	20.0 µm/m-°C @Temperature 21.0 - 204 °C	11.1 µin/in-°F @Temperature 69.8 - 399 °F
Specific Heat Capacity	0.376 J/g-°C	0.0899 BTU/lb-°F
Thermal Conductivity	88.0 W/m-K @Temperature 20.0 °C	611 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Melting Point	860 - 880 °C	1580 - 1620 °F
Solidus	860 °C	1580 °F
Liquidus	880 °C	1620 °F

Processing Properties	Metric	English	Comments
Annealing Temperature	260 °C	500 °F
Casting Temperature	955 - 1040 °C	1750 - 1900 °F	Heavy castings
	1040 - 1120 °C	1900 - 2050 °F	Light castings

Component Elements Properties	Metric	English	Comments
Aluminum, Al	<= 1.5 %	<= 1.5 %
Copper, Cu	56 - 62 %	56 - 62 %
Iron, Fe	<= 2.0 %	<= 2.0 %
Lead, Pb	0.50 - 1.5 %	0.50 - 1.5 %
Manganese, Mn	<= 1.5 %	<= 1.5 %
Nickel, Ni	<= 1.0 %	<= 1.0 %
Tin, Sn	<= 1.5 %	<= 1.5 %
Zinc, Zn	37 %	37 %

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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