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Rulon Bearings

Low-Zinc Silicon Brass, UNS C87600, Copper Casting Alloy
Categories: Metal; Nonferrous Metal; Copper Alloy; Copper Casting Alloy

Material Notes: Recommended Casting Methods: Sand.

Applications: Valve stems.

Classified under: Silicon bronzes and silicon brasses. ASTM B584; formerly ASTM B198-13C.

<>Alloy does not respond to heat treating. Typical data for as-sand-cast separately cast test bars (M01 temper).

Key Words: Silicon Brass, ASTM B584; ASTM B198-13C
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Physical PropertiesMetricEnglishComments
Density 8.30 g/cc0.300 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 110110500 kg load
 1351353000 kg load
Hardness, Rockwell B 7676
Tensile Strength, Ultimate 455 MPa66000 psi
Tensile Strength, Yield 220 MPa
@Strain 0.5 %
31900 psi
@Strain 0.5 %
Elongation at Break 20 %20 %in 51 mm
Modulus of Elasticity 115 GPa16700 ksi
Compressive Strength 415 MPa60200 psiat 0.1 mm/mm set
Machinability 40 %40 %UNS C36000 (free-cutting brass) = 100%
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.000028735 ohm-cm
@Temperature 20.0 °C
0.000028735 ohm-cm
@Temperature 68.0 °F
6% IACS
 
Thermal PropertiesMetricEnglishComments
Specific Heat Capacity 0.376 J/g-°C0.0899 BTU/lb-°F
Thermal Conductivity 28.4 W/m-K
@Temperature 20.0 °C
197 BTU-in/hr-ft²-°F
@Temperature 68.0 °F
Melting Point 860 - 971 °C1580 - 1780 °F
Solidus 860 °C1580 °F
Liquidus 971 °C1780 °F
Shrinkage 1.6 %1.6 %Patternmaker's Shrinkage (3/16 in./ft.)
 
Processing PropertiesMetricEnglishComments
Annealing Temperature 260 °C500 °FStress-Relieving Temperature
 
Component Elements PropertiesMetricEnglishComments
Copper, Cu >= 88 %>= 88 %
Iron, Fe <= 0.20 %<= 0.20 %
Lead, Pb <= 0.50 %<= 0.50 %
Manganese, Mn <= 0.25 %<= 0.25 %
Silicon, Si 3.5 - 5.5 %3.5 - 5.5 %
Zinc, Zn 4.0 - 7.0 %4.0 - 7.0 %

References for this datasheet.

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MC87600b1 / 11922

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