High density carbon, graphite, carbographite, carbon-carbon-composite materials and components.
Contact Details
Ceramisis Ltd29 Harley StreetLondonW1G 9QREngland Telephone:+44 020 7927 6710Fax:+44 020 7637 0419E-mail:sales@ceramisis.com
High Density Carbon & Graphite Materials Specifications
General purpose graphite
Main Characteristic
General purpose low spec
General purpose low spec
General purpose mid spec
General purpose high spec
General purpose high spec
Grade
GP10
GP15
GP20
GP25
GP30
Average grain size- microns
15
15
12
5
8
Density - g/cc
1.78
1.78
1.79
1.83
1.86
Porosity- %
10%
11%
11%
10%
8%
Thermal Conductivity-W/mK
85
115
92
69
68
CTE-microns/m.degC
4.6
4.5
5.5
5.7
5.9
Flexural Strength- Mpa
43
40
52
75
65
Compressive Strength- Mpa
93
80
106
170
155
Youngs Modulus - Gpa
9.2
9.9
10
13
12
Shore Hardness
53
52
62
79
76
Resistivity- uOhm cm
1600
1100
1340
1540
1640
Max operating temp- in air
500 deg C
500 deg C
500 deg C
500 deg C
500 deg C
-in vacuum
2200 degC
2200 degC
2200 degC
2200 degC
2200 degC
-in innert gas
2000 degC
2000 degC
2000 degC
2000 degC
2000 degC
Specialist Graphite Grades
Main Characteristic
Densified
High thermal conductivity
High electrical reststivity
High strength & expansion
High strength & expansion densified
Ultra fine grained high expansion
Grade
SPG35
SPG40
SPG45
SPG50
SPG55
SPG60
Average grain size- microns
13
10
5
4
4
<1
Density - g/cc
1.88
1.82
1.65
1.77
1.77
1.79
Porosity- %
4%
10%
25%
20%
4%
20%
Thermal Conductivity-W/mK
111
140
75
95
95
72
CTE-microns/m.degC
5
4.8
7.7
8.1
8.1
8.1
Flexural Strength- Mpa
57
54
53
85
85
110
Compressive Strength- Mpa
126
90
105
140
140
195
Youngs Modulus - Gpa
12.6
11
9
11
11
14.5
Shore Hardness
65
55
68
74
74
85
Resistivity- uOhm cm
1170
900
1900
1500
1500
1750
Max operating temp- in air
500 deg C
500 deg C
500 deg C
500 deg C
500 deg C
500 deg C
-in vacuum
2200 degC
2200 degC
2200 degC
2200 degC
2200 degC
2200 degC
-in innert gas
2000 degC
2000 degC
2000 degC
2000 degC
2000 degC
2000 degC
Oxidation Resistant Graphite Grades
Main Characteristic Oxidation resistant plus:
Boronised wear resistant
Phosphated high strength
Phosphated high thermal conductivity
Phosphated General purpose mid spec
Phosphated General purpose high spec
Grade
HTBG210
HTG300
HTG350
HTG400
HTG450
Average grain size- microns
10
5
10
13
5
Density - g/cc
1.85
1.87
1.82
1.85
1.86
Porosity- %
10%
21%
10%
11%
10%
Thermal Conductivity-W/mK
30
60
140
85
70
CTE-microns/m.degC
4.6
7.8
4.8
5.2
5.5
Flexural Strength- Mpa
70
96
54
50
84
Compressive Strength- Mpa
120
185
90
130
208
Youngs Modulus - Gpa
20
11
11
14
13
Shore Hardness
60
94
55
65
85
Resistivity- uOhm cm
1300
2000
900
1200
1550
Max operating temp- in air
800 deg C
600 deg C
600 deg C
600 deg C
600 deg C
Max continuous operating temp in air
600 deg C
550 deg C
550 deg C
550 deg C
550 deg C