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CBS-600 Carburizing Bearing and Gear Steel
Categories: Metal; Ferrous Metal; Alloy Steel; Carbon Steel; High Carbon Steel
Material Notes: CBS-600 VIM-VAR is a carburizing bearing and gear steel designed for service temperatures up to 600°F.

Information provided by Latrobe and the reference(s).
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Physical PropertiesMetricEnglishComments
Density 7.81 g/cc0.282 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell C 4141core layer, 0.20% C; oil-quenched from 1095°C (2000°F)
 6262case layer, 0.7 to 1.0% C; oil-quenched from 1095°C (2000°F)
Tensile Strength, Ultimate 1520 MPa220000 psi24°C Test Temp
Tensile Strength, Yield  1250 MPa
@Strain 0.2 %		181000 psi
@Strain 0.2 %		24°C Test Temp; 927°C Hardening Temp
 1265 MPa
@Strain 0.2 %		183500 psi
@Strain 0.2 %		24°C Test Temp; 843°C Hardening Temp
 965 MPa
@Strain 0.2 %,
Temperature 371 °C		140000 psi
@Strain 0.2 %,
Temperature 700 °F		843°C Hardening Temp
 1020 MPa
@Strain 0.2 %,
Temperature 371 °C		148000 psi
@Strain 0.2 %,
Temperature 700 °F		927°C Hardening Temp
Elongation at Break 11.4 %11.4 %24°C Test Temp; 843°C Hardening Temp
 12.5 %12.5 %24°C Test Temp; 927°C Hardening Temp
 17.5 %
@Temperature 371 °C		17.5 %
@Temperature 700 °F		843°C Hardening Temp
 18.2 %
@Temperature 371 °C		18.2 %
@Temperature 700 °F		927°C Hardening Temp
Reduction of Area 43.5 %43.5 %after 843°C Hardening Temp
 54.9 %54.9 %after 927°C Hardening Temp
 53.6 %
@Temperature 371 °C		53.6 %
@Temperature 700 °F
Modulus of Elasticity 210 GPa30500 ksi
 172 GPa
@Temperature 550.0 °C		24900 ksi
@Temperature 1022 °F
Poissons Ratio  0.292
@Temperature 20.0 °C		0.292
@Temperature 68.0 °F
 0.309
@Temperature 550.0 °C		0.309
@Temperature 1022 °F
Fracture Toughness 46.2 - 57.1 MPa-m½42.0 - 52.0 ksi-in½cracks originating in case; case depth 0.30 to 0.35 in.
 81.3 - 100 MPa-m½74.0 - 91.0 ksi-in½cracks originating in core
Shear Modulus  64.1 GPa
@Temperature 538 °C		9300 ksi
@Temperature 1000 °F
 81.70 GPa
@Temperature 20.0 °C		11850 ksi
@Temperature 68.0 °F
 
Thermal PropertiesMetricEnglishComments
CTE, linear  12.7 µm/m-°C
@Temperature 21.0 - 204 °C		7.06 µin/in-°F
@Temperature 69.8 - 399 °F		0.20%C
 12.8 µm/m-°C
@Temperature 21.0 - 427 °C		7.11 µin/in-°F
@Temperature 69.8 - 801 °F		0.20%C
Specific Heat Capacity  0.494 J/g-°C
@Temperature 20.0 °C		0.118 BTU/lb-°F
@Temperature 68.0 °F
 0.695 J/g-°C
@Temperature 550.0 °C		0.166 BTU/lb-°F
@Temperature 1022 °F
Thermal Conductivity  33.9 W/m-K
@Temperature 550.0 °C		235 BTU-in/hr-ft²-°F
@Temperature 1022 °F
 48.6 W/m-K
@Temperature 20.0 °C		337 BTU-in/hr-ft²-°F
@Temperature 68.0 °F
Maximum Service Temperature, Air 316 °C600 °F
 
Processing PropertiesMetricEnglishComments
Processing Temperature 729 °C1340 °FCritical Temperature Case Ac1
 729 °C1340 °FCritical Temperature Core Ac1
 802 °C1480 °FCritical Temperature Case Ac3
 885 °C1630 °FCritical Temperature Core Ac3
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al 0.060 %0.060 %
Carbon, C 0.19 %0.19 %
Chromium, Cr 1.45 %1.45 %
Iron, Fe 95.6 %95.6 %
Manganese, Mn 0.60 %0.60 %
Molybdenum, Mo 1.0 %1.0 %
Silicon, Si 1.1 %1.1 %

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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