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Rulon Bearings

3M Techical Ceramics Ekasic® T Plus Silicon Carbide
Categories: Ceramic; Carbide

Material Notes:

Information provided by 3M Technical Ceramics, formerly ESK Ceramics.

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Physical PropertiesMetricEnglishComments
Density >= 3.24 g/cc>= 0.117 lb/in³DIN EN 623-2
Porosity <= 1.0 %<= 1.0 %DIN EN 623-2
Grain Size <= 2.0 µm<= 2.0 µm
Weibull Modulus 1515[m]; DIN EN 843-5
 
Mechanical PropertiesMetricEnglishComments
Hardness, Knoop 22.5
@Pressure 100 MPa
22.5
@Pressure 14500 psi
DIN EN 843-4
Hardness, Vickers 22.5
@Pressure 1000 MPa
22.5
@Pressure 145000 psi
DIN EN 843-4
Tensile Modulus 430 GPa62400 ksiYoung's; DIN EN 843-2
Flexural Strength 650 MPa94300 psi4-pt bending; DIN EN 843-1
Compressive Strength >= 2500 MPa>= 363000 psiDIN 51104
Poissons Ratio 0.170.17DIN EN 843-2
Fracture Toughness 6.00 MPa-m½5.46 ksi-in½SENB
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 1000 ohm-cm - 1e+051000 ohm-cm - 1e+05DIN EN 50359
 
Thermal PropertiesMetricEnglishComments
CTE, linear  4.10 µm/m-°C
@Temperature 25.0 - 500 °C
2.28 µin/in-°F
@Temperature 77.0 - 932 °F
DIN EN 821-1
 5.30 µm/m-°C
@Temperature 500 - 1000 °C
2.94 µin/in-°F
@Temperature 932 - 1830 °F
DIN EN 821-1
Specific Heat Capacity 0.710 J/g-°C0.170 BTU/lb-°FC DIN EN 821-3
Thermal Conductivity 95.0 W/m-K659 BTU-in/hr-ft²-°FDIN EN 821-2
 
Descriptive Properties
Thermal Stress29 W/mmR2= R1-λ
 306 KR1 = sB·(1-ν)/(α·E)

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