High-Leaded Tin Bronze, UNS C93400, Copper Casting Alloy

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High-Leaded Tin Bronze, UNS C93400, 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: Bearing and bushings. Classified under: High-leaded tin bronzes Typical data for as-sand-cast separately cast test bars (M01 temper). Alloy does not respond to heat treating
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Physical Properties	Metric	English	Comments

Density	8.87 g/cc	0.320 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	60	60	500 kg
Tensile Strength, Ultimate	220 MPa	31900 psi
Tensile Strength, Yield	110 MPa @Strain 0.5 %	16000 psi @Strain 0.5 %
Elongation at Break	20 %	20 %	in 50 mm
Modulus of Elasticity	76.0 GPa	11000 ksi
Compressive Strength	330 MPa	47900 psi	at 0.1 mm/mm set
Fatigue Strength	100 MPa @# of Cycles 1.00e+8	14500 psi @# of Cycles 1.00e+8
Machinability	70 %	70 %	UNS C36000 (free-cutting brass) = 100%
Izod Impact	6.80 J	5.02 ft-lb

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000144 ohm-cm @Temperature 20.0 °C	0.0000144 ohm-cm @Temperature 68.0 °F

Thermal Properties	Metric	English	Comments
CTE, linear	18.0 µm/m-°C @Temperature 20.0 - 200 °C	10.0 µin/in-°F @Temperature 68.0 - 392 °F
Specific Heat Capacity	0.376 J/g-°C	0.0899 BTU/lb-°F
Thermal Conductivity	4.84 W/m-K	33.6 BTU-in/hr-ft²-°F
Shrinkage	1.6 %	1.6 %	Patternmaker's Shrinkage (3/16 in./ft.)

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

Component Elements Properties	Metric	English	Comments
Aluminum, Al	<= 0.0050 %	<= 0.0050 %
Antimony, Sb	<= 0.50 %	<= 0.50 %
Copper, Cu	82 - 85 %	82 - 85 %
Iron, Fe	<= 0.20 %	<= 0.20 %
Lead, Pb	7.0 - 9.0 %	7.0 - 9.0 %
Nickel, Ni	<= 1.0 %	<= 1.0 %
Phosphorus, P	<= 0.50 %	<= 0.50 %
Silicon, Si	<= 0.0050 %	<= 0.0050 %
Sulfur, S	<= 0.080 %	<= 0.080 %
Tin, Sn	7.0 - 9.0 %	7.0 - 9.0 %
Zinc, Zn	<= 0.80 %	<= 0.80 %

Descriptive Properties
Proportional Limit	55 MPa

References for this datasheet.

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MC93400b1 / 11946

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