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Rulon Bearings

High-Leaded Tin Bronze, UNS C93700, Copper Casting Alloy (SAE 64)
Categories: Metal; Nonferrous Metal; Copper Alloy; Copper Casting Alloy
Material Notes:

Casting methods recommended for this alloy: Centrifugal, Continuous, Permanent Mold, and Sand.

Applications: Bearings for high speed and heavy pressures, pumps, impellers, corrosion-resistant applications, pressure tight castings.

Classified under: High-leaded tin bronzes. ASTM B22; ASTM B584; formerly ASTM B22-C; ASTM B144-3A

Typical data for sand cast test bars. Alloy does not respond to heat treating. Casting shrinkage allowance is 2%
Key Words: High lead tin bronze, ASTM B22, ASTM B584, ASTM B22-C, ASTM B144-3A
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Physical PropertiesMetricEnglishComments
Density 8.95 g/cc0.323 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 6060
Tensile Strength, Ultimate 240 MPa34800 psi
 210 MPa
@Temperature 230 °C		30500 psi
@Temperature 446 °F
 230 MPa
@Temperature 120 °C		33400 psi
@Temperature 248 °F
 270 MPa
@Temperature 25.0 °C		39200 psi
@Temperature 77.0 °F
 295 MPa
@Temperature -40.0 °C		42800 psi
@Temperature -40.0 °F
Tensile Strength, Yield 125 MPa
@Strain 0.5 %		18100 psi
@Strain 0.5 %
 95.0 MPa
@Strain 0.2 %,
Temperature 120 °C		13800 psi
@Strain 0.2 %,
Temperature 248 °F
 95.0 MPa
@Strain 0.2 %,
Temperature 230 °C		13800 psi
@Strain 0.2 %,
Temperature 446 °F
 105 MPa
@Strain 0.5 %,
Temperature 120 °C		15200 psi
@Strain 0.5 %,
Temperature 248 °F
 105 MPa
@Strain 0.5 %,
Temperature 230 °C		15200 psi
@Strain 0.5 %,
Temperature 446 °F
 115 MPa
@Strain 0.2 %,
Temperature 25.0 °C		16700 psi
@Strain 0.2 %,
Temperature 77.0 °F
 125 MPa
@Strain 0.5 %,
Temperature 25.0 °C		18100 psi
@Strain 0.5 %,
Temperature 77.0 °F
 135 MPa
@Strain 0.2 %,
Temperature -40.0 °C		19600 psi
@Strain 0.2 %,
Temperature -40.0 °F
 145 MPa
@Strain 0.5 %,
Temperature -40.0 °C		21000 psi
@Strain 0.5 %,
Temperature -40.0 °F
Elongation at Break 20 %20 %in 50 mm
 16 %
@Temperature 230 °C		16 %
@Temperature 446 °F
 22 %
@Temperature 120 °C		22 %
@Temperature 248 °F
 28 %
@Temperature -40.0 °C		28 %
@Temperature -40.0 °F
 30 %
@Temperature 25.0 °C		30 %
@Temperature 77.0 °F
Reduction of Area  20 %
@Temperature 230 °C		20 %
@Temperature 446 °F
 24 %
@Temperature 25.0 °C		24 %
@Temperature 77.0 °F
 26 %
@Temperature -40.0 °C		26 %
@Temperature -40.0 °F
 27 %
@Temperature 120 °C		27 %
@Temperature 248 °F
Creep Strength  12.0 MPa
@Temperature 288 °C		1740 psi
@Temperature 550 °F		for 0.00001%/h
 51.0 MPa
@Temperature 232 °C		7400 psi
@Temperature 450 °F		for 0.00001%/h
 71.7 MPa
@Temperature 177 °C		10400 psi
@Temperature 351 °F		for 0.00001%/h
Rupture Strength  120 MPa
@Temperature 230 °C,
Time 2.70e+6 sec		17400 psi
@Temperature 446 °F,
Time 750 hour
 135 MPa
@Temperature 230 °C,
Time 1.08e+6 sec		19600 psi
@Temperature 446 °F,
Time 300 hour
 150 MPa
@Temperature 230 °C,
Time 234000 sec		21800 psi
@Temperature 446 °F,
Time 65.0 hour
 210 MPa
@Temperature 175 °C,
Time 86400 sec		30500 psi
@Temperature 347 °F,
Time 24.0 hour
Tensile Modulus 75.8 GPa11000 ksi
 45.0 GPa
@Temperature 230 °C		6530 ksi
@Temperature 446 °F
 68.0 GPa
@Temperature 120 °C		9860 ksi
@Temperature 248 °F
 82.0 GPa
@Temperature 25.0 °C		11900 ksi
@Temperature 77.0 °F
 93.0 GPa
@Temperature -40.0 °C		13500 ksi
@Temperature -40.0 °F
Compressive Strength 90.0 MPa13100 psiat permanent set of 0.1%
 325 MPa47100 psiat permanent set of 10%
 95.0 MPa
@Temperature 120 °C		13800 psi
@Temperature 248 °F		0.1% set
 100 MPa
@Temperature 240 °C		14500 psi
@Temperature 464 °F		0.1% set
 105 MPa
@Temperature 25.0 °C		15200 psi
@Temperature 77.0 °F		0.1% set
 120 MPa
@Temperature 120 °C		17400 psi
@Temperature 248 °F		1% set
 120 MPa
@Temperature 240 °C		17400 psi
@Temperature 464 °F		1% set
 140 MPa
@Temperature -40.0 °C		20300 psi
@Temperature -40.0 °F		0.1% set
 150 MPa
@Temperature 25.0 °C		21800 psi
@Temperature 77.0 °F		1% set
 175 MPa
@Temperature -40.0 °C		25400 psi
@Temperature -40.0 °F		1% set
 215 MPa
@Temperature 25.0 °C		31200 psi
@Temperature 77.0 °F		10% set
 270 MPa
@Temperature 120 °C		39200 psi
@Temperature 248 °F		10% set
 275 MPa
@Temperature 240 °C		39900 psi
@Temperature 464 °F		10% set
 350 MPa
@Temperature -40.0 °C		50800 psi
@Temperature -40.0 °F		10% set
Fatigue Strength 90.0 MPa
@# of Cycles 1.00e+8 		13100 psi
@# of Cycles 1.00e+8
Machinability 80 %80 %UNS C36000 (free-cutting brass) = 100%
Izod Impact 7.00 J5.16 ft-lb
Charpy Impact 15.0 J11.1 ft-lbV-notch
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000170 ohm-cm0.0000170 ohm-cm
 0.0000171 ohm-cm
@Temperature 25.0 °C		0.0000171 ohm-cm
@Temperature 77.0 °F
 0.00001776 ohm-cm
@Temperature 65.0 °C		0.00001776 ohm-cm
@Temperature 149 °F
 0.000018125 ohm-cm
@Temperature 90.0 °C		0.000018125 ohm-cm
@Temperature 194 °F
 0.00001851 ohm-cm
@Temperature 120 °C		0.00001851 ohm-cm
@Temperature 248 °F
 0.00001891 ohm-cm
@Temperature 150 °C		0.00001891 ohm-cm
@Temperature 302 °F
 0.00001933 ohm-cm
@Temperature 175 °C		0.00001933 ohm-cm
@Temperature 347 °F
 0.00001977 ohm-cm
@Temperature 210 °C		0.00001977 ohm-cm
@Temperature 410 °F
 0.0000200 ohm-cm
@Temperature 235 °C		0.0000200 ohm-cm
@Temperature 455 °F
Magnetic Permeability 1.01.0
 
Thermal PropertiesMetricEnglishComments
CTE, linear  17.8 µm/m-°C
@Temperature 100 °C		9.89 µin/in-°F
@Temperature 212 °F
 18.0 µm/m-°C
@Temperature 130 °C		10.0 µin/in-°F
@Temperature 266 °F
 18.2 µm/m-°C
@Temperature 165 °C		10.1 µin/in-°F
@Temperature 329 °F
 18.3 µm/m-°C
@Temperature 185 °C		10.2 µin/in-°F
@Temperature 365 °F
 18.4 µm/m-°C
@Temperature 215 °C		10.2 µin/in-°F
@Temperature 419 °F
 18.6 µm/m-°C
@Temperature 235 °C		10.3 µin/in-°F
@Temperature 455 °F
 18.7 µm/m-°C
@Temperature 270 °C		10.4 µin/in-°F
@Temperature 518 °F
Specific Heat Capacity 0.376 J/g-°C0.0899 BTU/lb-°F
Thermal Conductivity  46.9 W/m-K
@Temperature 20.0 °C		325 BTU-in/hr-ft²-°F
@Temperature 68.0 °F
 47.0 W/m-K
@Temperature 20.0 °C		326 BTU-in/hr-ft²-°F
@Temperature 68.0 °F
 48.0 W/m-K
@Temperature 40.0 °C		333 BTU-in/hr-ft²-°F
@Temperature 104 °F
 50.0 W/m-K
@Temperature 70.0 °C		347 BTU-in/hr-ft²-°F
@Temperature 158 °F
 51.0 W/m-K
@Temperature 95.0 °C		354 BTU-in/hr-ft²-°F
@Temperature 203 °F
 52.0 W/m-K
@Temperature 125 °C		361 BTU-in/hr-ft²-°F
@Temperature 257 °F
 54.0 W/m-K
@Temperature 160 °C		375 BTU-in/hr-ft²-°F
@Temperature 320 °F
 56.0 W/m-K
@Temperature 175 °C		389 BTU-in/hr-ft²-°F
@Temperature 347 °F
 59.0 W/m-K
@Temperature 205 °C		409 BTU-in/hr-ft²-°F
@Temperature 401 °F
 62.0 W/m-K
@Temperature 230 °C		430 BTU-in/hr-ft²-°F
@Temperature 446 °F
Melting Point 762 - 930 °C1400 - 1710 °F
Solidus 762 °C1400 °F
Liquidus 930 °C1710 °F
Shrinkage 1.1 %1.1 %Patternmaker's Shrinkage (1/8 in./ft.)
 
Processing PropertiesMetricEnglishComments
Annealing Temperature 260 °C500 °FStress-Relieving Temperature
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al <= 0.0050 %<= 0.0050 %
Antimony, Sb <= 0.50 %<= 0.50 %
Copper, Cu 78 - 82 %78 - 82 %
Iron, Fe <= 0.15 %<= 0.15 %
Lead, Pb 8.0 - 11 %8.0 - 11 %
Nickel, Ni <= 0.70 %<= 0.70 %
Phosphorus, P <= 0.050 %<= 0.050 %
Silicon, Si <= 0.0030 %<= 0.0030 %
Sulfur, S <= 0.080 %<= 0.080 %
Tin, Sn 9.0 - 11 %9.0 - 11 %
Zinc, Zn <= 0.70 %<= 0.70 %

References for this datasheet.

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