UNS C99750, Copper Casting Alloy

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UNS C99750, Copper Casting Alloy
Categories:	Metal; Nonferrous Metal; Copper Alloy; Copper Casting Alloy
Material Notes:	Casting methods recommended for this alloy: D,I,M,P,S. Properties typical for as-sand-cast separately cast test bars (M01 temper).
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Physical Properties	Metric	English	Comments

Density	8.00 g/cc	0.289 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	110	110	500 kg
	119	119	heat treated; 500 kg
Hardness, Rockwell B	77	77
Tensile Strength, Ultimate	448 MPa	65000 psi
	517 MPa	75000 psi	heat treated
Tensile Strength, Yield	220 MPa @Strain 0.2 %	31900 psi @Strain 0.2 %
	276 MPa @Strain 0.2 %	40000 psi @Strain 0.2 %	heat treated
Elongation at Break	20 %	20 %	heat treated, in 50 mm
	30 %	30 %	in 50 mm
Modulus of Elasticity	117 GPa	17000 ksi
Compressive Strength	193 MPa	28000 psi	at 0.001 mm/mm set
	262 MPa	38000 psi	at 0.01 mm/mm set
	495 MPa	71800 psi	at 0.1 mm/mm set
Fatigue Strength	128 MPa @# of Cycles 1.00e+8	18600 psi @# of Cycles 1.00e+8
Machinability	80 %	80 %
Charpy Impact	100 J	73.8 ft-lb	V-notch

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000086205 ohm-cm @Temperature 20.0 °C	0.000086205 ohm-cm @Temperature 68.0 °F

Thermal Properties	Metric	English	Comments
CTE, linear	24.3 µm/m-°C @Temperature 20.0 - 200 °C	13.5 µin/in-°F @Temperature 68.0 - 392 °F
Specific Heat Capacity	0.376 J/g-°C	0.0899 BTU/lb-°F
Melting Point	819 - 843 °C	1510 - 1550 °F
Solidus	819 °C	1510 °F
Liquidus	843 °C	1550 °F

Processing Properties	Metric	English	Comments
Annealing Temperature	260 °C	500 °F	Stress-Relieving Temperature

Component Elements Properties	Metric	English	Comments
Aluminum, Al	1.0 %	1.0 %
Copper, Cu	58 %	58 %
Lead, Pb	1.0 %	1.0 %
Manganese, Mn	20 %	20 %
Zinc, Zn	20 %	20 %

References for this datasheet.

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MC99750b1 / 11988

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