Latrobe CBS-600™ VIM-VAR Carburizing Bearing and Gear Steel

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Latrobe CBS-600™ VIM-VAR 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. Double vacuum melting is employed to provide optimum tensile properties as well as describe impact and fracture toughness characteristics. Information Provided by Timken Latrobe Steel. Timken sold Latrobe in December 2006. They are now Latrobe Specialty Steels Co.
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Physical Properties	Original Value	Comments

Density	0.282 lb/in³

Mechanical Properties	Original Value	Comments
Hardness, Rockwell C	37	Core at 700°F, 1000hr
	38	Core at 300°F, 100hr
	58	Case at 600°F, 1000hr
	62	Case at 300°F, 1000hr
Tensile Strength, Ultimate	203.5 ksi	371°C Test Temp; 843°C Hardening Temp
	206.2 ksi	371°C Test Temp; 927°C Hardening Temp
	220 ksi	24°C Test Temp
Tensile Strength, Yield	1250 MPa @Strain 0.2 %	24°C Test Temp; 927°C Hardening Temp
	1265 MPa @Strain 0.2 %	24°C Test Temp; 843°C Hardening Temp
	965 MPa @Strain 0.2 %, Temperature 371 °C	843°C Hardening Temp
	1020 MPa @Strain 0.2 %, Temperature 371 °C	927°C Hardening Temp
Elongation at Break	11.4 %	24°C Test Temp; 843°C Hardening Temp
	12.5 %	24°C Test Temp; 927°C Hardening Temp
	17.5 % @Temperature 371 °C	843°C Hardening Temp
	18.2 % @Temperature 371 °C	927°C Hardening Temp
Reduction of Area	43.5 %	after 843°C Hardening Temp
	54.9 %	after 927°C Hardening Temp
	53.6 % @Temperature 371 °C
Modulus of Elasticity	30500 ksi
	24900 ksi @Temperature 550.0 °C
Poissons Ratio	0.292 @Temperature 20.0 °C
	0.309 @Temperature 550.0 °C
Shear Modulus	9300 ksi @Temperature 538 °C
	11850 ksi @Temperature 20.0 °C

Thermal Properties	Original Value	Comments
CTE, linear	12.7 µm/m-°C @Temperature 21.0 - 204 °C	0.20%C
	12.8 µm/m-°C @Temperature 21.0 - 427 °C	0.20%C
Specific Heat Capacity	0.118 BTU/lb-°F @Temperature 20.0 °C
	0.166 BTU/lb-°F @Temperature 550.0 °C
Thermal Conductivity	33.9 W/m-K @Temperature 550.0 °C
	48.6 W/m-K @Temperature 20.0 °C
Maximum Service Temperature, Air	600 °F

Processing Properties	Original Value	Comments
Processing Temperature	729 °C	Case Ac1 Critical Temperaure Ar3
	729 °C	Core Ac1 Critical Temperaure Ar3
	802 °C	Case Ac3 Critical Temperaure Ar3
	885 °C	Core Ac3 Critical Temperaure Ar3

Component Elements Properties	Original Value	Comments
Aluminum, Al	0.060 %
Carbon, C	0.19 %
Chromium, Cr	1.45 %
Iron, Fe	95.6 %
Manganese, Mn	0.60 %
Molybdenum, Mo	1.0 %
Silicon, Si	1.1 %

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 go back to viewing the property data in MatWeb's normal format.

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NTIMK006 / 19354

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