CeramTec Rocar® S Silicon Carbide, SSiC

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CeramTec Rocar® S Silicon Carbide, SSiC
Categories:	Ceramic; Carbide
Material Notes:	Rocar® is an extremely lightweight silicon carbide ceramic. It permits a reduction in mass forces at high speeds, and is considered for its hardness, excellent resistance to corrosion and sudden changes in temperature, excellent anti-friction properties, and higher heat conductivity over steel. The various types of Rocar include sintered and silicon infiltrated silicon carbide. SSiC is resistant to all chemical media. Since no metallic silicon is present in the matrix, it can be used at temperatures up to 1600°C without impaired strength.
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Physical Properties	Metric	English	Comments

Density	3.15 g/cc	0.114 lb/in³	DIN EN 623-2 / ASTM-C373 / ASTM-C20
Water Absorption	0.00 %	0.00 %	DIN EN 623-2 / ASTM-C373
Porosity	2.0 %	2.0 %	Closed (approximate)
Permeability	0.00	0.00	Gas
Weibull Modulus	>= 10	>= 10	DINV ENV 843-5

Mechanical Properties	Metric	English	Comments
Vickers Microhardness	2300	2300	HV 0.5; DINV ENV 843-4
Tensile Strength at Break	410 MPa	59500 psi	ACMA Test #4 / DIN EN 843-1
Tensile Modulus	430 GPa	62400 ksi	Young's; DINV ENV 843-2 / ASTM-F417
Flexural Strength	410 MPa	59500 psi	DIN EN 843-1
Compressive Strength	3500 MPa	508000 psi	ASTM C-773-88 / DIN 51067T1
Poissons Ratio	0.17	0.17	DINV ENV 843-2
Fracture Toughness	4.40 MPa-m½	4.00 ksi-in½	DIN 51109
Shear Modulus	184 GPa	26700 ksi	Calculated

Electrical Properties	Metric	English	Comments
Volume Resistivity	<= 10 ohm-cm @Temperature 400 °C	<= 10 ohm-cm @Temperature 752 °F	IEC 672-1
	1000 ohm-cm @Temperature 20.0 °C	1000 ohm-cm @Temperature 68.0 °F	IEC 672-1
Dielectric Loss Index	0.20 @Frequency 9.00e+9 Hz	0.20 @Frequency 9.00e+9 Hz	IEC 672-1

Thermal Properties	Metric	English	Comments
CTE, linear	3.00 µm/m-°C @Temperature 20.0 - 200 °C	1.67 µin/in-°F @Temperature 68.0 - 392 °F	DIN EN 821-1
	3.60 µm/m-°C @Temperature 20.0 - 400 °C	2.00 µin/in-°F @Temperature 68.0 - 752 °F	DIN EN 821-1
	4.10 µm/m-°C @Temperature 20.0 - 600 °C	2.28 µin/in-°F @Temperature 68.0 - 1110 °F	DIN EN 821-1
	4.60 µm/m-°C @Temperature 20.0 - 1000 °C	2.56 µin/in-°F @Temperature 68.0 - 1830 °F	DIN EN 821-1
Specific Heat Capacity	0.600 J/g-°C @Temperature 100 - 200 °C	0.143 BTU/lb-°F @Temperature 212 - 392 °F	DINV ENV 821-3
Thermal Conductivity	115 W/m-K	798 BTU-in/hr-ft²-°F	DIN EN 821-2 / ASTM-C408
Maximum Service Temperature, Air	1500 °C	2730 °F
Maximum Service Temperature, Inert	1800 °C	3270 °F

Descriptive Properties
Color	Black
Ra = Arithmetic Mean Roughness Value (µm)	Profilometer (0.8 mm Cutoff)

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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CCERA940 / 107540

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