CeramTec Rocar® SiG Silicon Carbide, SiSiC

Category	Ceramic , Carbide
Manufacturer	CeramTec North America
Trade Name
Port	Ningbo port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	CeramTec Rocar® SiG Silicon Carbide, SiSiC.pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

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. In SiSiC, the pore cavities are filled with metallic silicon. Since shrinkage during firing is minimal, complex components can be produced with low tolerances. Its maximum application temperature is 1350°C. However, it is not suitable for use in highly alkaline media because of its content of metallic silicon.

Physical Properties	Metric	English	Comments
Density	3.07 g/cc	0.111 lb/in³	DIN EN 623-2
Water Absorption	0.00 %	0.00 %	Open Porosity; DIN EN 623-2
Porosity	0.00 %	0.00 %	closed (approximate)
Permeability	0.00	0.00	%, Gas
Weibull Modulus	>= 14	>= 14	DINV ENV 843-5

Mechanical Properties	Metric	English	Comments
Vickers Microhardness	1200	1200	HV 0.2; Si; DINV ENV 843-4
	2700	2700	HV 0.2; SiC; DINV ENV 843-4
Tensile Strength at Break	340 MPa	49300 psi	ACMA Test #4 / DIN EN 843-1
Tensile Modulus	380 GPa	55100 ksi	Young's; DINV ENV 843-2
Flexural Strength	340 MPa @Temperature 20.0 °C	49300 psi @Temperature 68.0 °F	DIN EN 843-1
	340 MPa @Temperature 1000 °C	49300 psi @Temperature 1830 °F	DIN EN 820-1
Compressive Strength	3500 MPa	508000 psi	DIN 51067T1
Poissons Ratio	0.17	0.17	DINV ENV 843-2
Fracture Toughness	4.00 MPa-m½	3.64 ksi-in½	K<sub>IC</sub> (SEVNB); DIN CEN/TS 14425-1
Shear Modulus	162 GPa	23500 ksi	Calculated

Thermal Properties	Metric	English	Comments
CTE, linear	3.40 µm/m-°C @Temperature 20.0 - 100 °C	1.89 µin/in-°F @Temperature 68.0 - 212 °F	DIN EN 821-1
	4.10 µm/m-°C @Temperature 20.0 - 400 °C	2.28 µin/in-°F @Temperature 68.0 - 752 °F	DIN EN 821-1
	4.40 µm/m-°C @Temperature 20.0 - 600 °C	2.44 µin/in-°F @Temperature 68.0 - 1110 °F	DIN EN 821-1
	4.90 µm/m-°C @Temperature 20.0 - 1000 °C	2.72 µin/in-°F @Temperature 68.0 - 1830 °F	DIN EN 821-1
Specific Heat Capacity	0.700 J/g-°C @Temperature 20.0 °C	0.167 BTU/lb-°F @Temperature 68.0 °F	DINV ENV 821-3
	1.30 J/g-°C @Temperature 1000 °C	0.311 BTU/lb-°F @Temperature 1830 °F	DINV ENV 821-3
Thermal Conductivity	40.0 W/m-K @Temperature 1000 °C	278 BTU-in/hr-ft²-°F @Temperature 1830 °F	DIN EN 821-2
	115 W/m-K @Temperature 20.0 °C	798 BTU-in/hr-ft²-°F @Temperature 68.0 °F	DIN EN 821-2
Maximum Service Temperature, Air	1350 °C	2460 °F
Maximum Service Temperature, Inert	1350 °C	2460 °F

Electrical Properties	Metric	English	Comments
Volume Resistivity	<= 1.0 ohm-cm @Temperature 20.0 °C	<= 1.0 ohm-cm @Temperature 68.0 °F	IEC 672-1
	100 ohm-cm @Temperature 400 °C	100 ohm-cm @Temperature 752 °F	IEC 672-1

Descriptive Properties	Value	Comments
Ra = Arithmetic Mean Roughness Value (µm)	<0.03
Thermal Shock Resistance R1 (K)	181	calculated; R1 = [s? (1-µ)] / (a·E)

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