Performance

standard board

standard  cylinder

Density

 board

density cylinder

Density(g/cm3)

0.18±0.02

0.16±0.02

0.24±0.03

0.22±0.02

Porosity(%)

90

92

84

86

Carbon content(%)

99.5

Ash  content(%)

<0.1

average conductivity at 1000 centidegree

(W/m·K)

vacuum

0.15-0.3

inertia gas

0.3-0.36

thermal

expansion

coefficient

(10-6/centidegree)

25-1000centidegree

3.1±0.4

1000-2000centidegree

3.6±0.4

compressive

strength(MPa)

Parallel to fiber orientation(XY)

1.1

0.9

2.4

1.2

Vertical to fiber orientation(Z)

0.2

0.2

0.4

0.3

bending strength

(MPa)

Parallel to fiber orientation(XY)

1.6

1.8

2.8

2.3

Vertical to fiber orientation(Z)

1.0

1.2

1.5

1.4

carbonized product maximum service temperature(centidegree)

1800

graphitized product maximum service temperature(centidegree)

2800