UNS C96400, Copper Casting Alloy

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UNS C96400, Copper Casting Alloy
Categories:	Metal; Nonferrous Metal; Copper Alloy; Copper Casting Alloy
Material Notes:	Casting methods recommended for this alloy: Centrifugal, Continuous, and Sand. Applications: Valves, pump bodies, flanges, elbows used for sea-water corrosion resistance. Classified under: Copper-nickels Typical data for sand-cast test bars. Alloy does not respond to heat treating
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Physical Properties	Metric	English	Comments

Density	8.94 g/cc	0.323 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	140	140	3000 kg
Tensile Strength, Ultimate	470 MPa	68200 psi
Tensile Strength, Yield	255 MPa @Strain 0.5 %	37000 psi @Strain 0.5 %
Elongation at Break	28 %	28 %	in 50 mm
Modulus of Elasticity	145 GPa	21000 ksi
Fatigue Strength	125 MPa @# of Cycles 1.00e+8	18100 psi @# of Cycles 1.00e+8	Reverse Bending
Machinability	20 %	20 %	UNS C36000 (free-cutting brass) = 100%
Charpy Impact	106 J	78.2 ft-lb	V-notch

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00003448 ohm-cm @Temperature 20.0 °C	0.00003448 ohm-cm @Temperature 68.0 °F	as-cast tempers

Thermal Properties	Metric	English	Comments
CTE, linear	16.0 µm/m-°C @Temperature 20.0 - 300 °C	8.89 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.375 J/g-°C	0.0896 BTU/lb-°F
Thermal Conductivity	29.0 W/m-K @Temperature 20.0 °C	201 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Melting Point	1170 - 1240 °C	2140 - 2260 °F
Solidus	1170 °C	2140 °F
Liquidus	1240 °C	2260 °F
Shrinkage	1.9 %	1.9 %	Patternmaker's Shrinkage

Component Elements Properties	Metric	English	Comments
Carbon, C	<= 0.15 %	<= 0.15 %
Copper, Cu	65 - 69 %	65 - 69 %
Iron, Fe	0.25 - 1.5 %	0.25 - 1.5 %
Lead, Pb	<= 0.030 %	<= 0.030 %
Manganese, Mn	<= 1.5 %	<= 1.5 %
Nickel, Ni	28 - 32 %	28 - 32 %
Niobium, Nb (Columbium, Cb)	0.50 - 1.5 %	0.50 - 1.5 %
Silicon, Si	<= 0.50 %	<= 0.50 %

References for this datasheet.

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MC96400b1 / 11971

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