SGL Carbon Group EK 2239 Carbon Graphite

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SGL Carbon Group EK 2239 Carbon Graphite
Categories:	Carbon; Graphite
Material Notes:	Good mechanical strength, good sliding properties, high temperature resistance, high thermal shock resistance, low wettability, high corrosion resistance, high thermal conductivity, high purity, and good electrical conductivity. Typical Applications: High Volume Seals Information provided by SGL Carbon Group
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Physical Properties	Metric	English	Comments

Density	1.80 g/cc	0.0650 lb/in³
Open Porosity	<= 2.5 %	<= 2.5 %

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell R	110	110	Size/Load - 10/100
Modulus of Elasticity	20.0 GPa	2900 ksi
Flexural Strength	44.8 MPa	6500 psi
Compressive Strength	148 MPa	21500 psi

Thermal Properties	Metric	English	Comments
CTE, linear	4.50 µm/m-°C @Temperature 20.0 °C	2.50 µin/in-°F @Temperature 68.0 °F
Maximum Service Temperature, Air	399 °C	750 °F	In oxygen
Maximum Service Temperature, Inert	399 °C	750 °F	Reducing Atm.

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ESGK11 / 5690

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