TYPE R-1 (RESIN IMPREGNATED CARBON) Isomolded, very fine grain, high strength, high density, isotropic carbon, resin impregnated for high mechanical and sealing applications. TYPE R-2 (PURE CARBON GRAPHITE) Isomolded, very fine grain, high strength, high density, isotropic graphite. Excellent resistance to thermal shock and oxidation.Typical Applications: High performance graphite for various high temperature applications such as: continuous casting of aggressive alloys. TYPE R-3 (ANTIMONY IMPREGNATED CARBON) Isomolded, very fine grain, high strength, high density, isotropic carbon, antimony impregnated for high mechanical and sealing applications. Min. Metal content %28.
Max. Operating Temperature 200°C (400°F)
Typical Applications: Rings for mechanical seals
Max. Operating Temperature 450°C (850°F)
Typical Applications: Bearings, Seal Rings for mechanical seals and rotary joints
|
R-1 |
R-2 |
R-3 |
|
|
BULK DENSITY |
1,86 g/cm³ |
1,84 g/cm³ |
2,45 g/cm³ |
|
SPECIFIC RESISTANCE |
3,000 µohm.cm |
1,140 µohm.cm |
1,000 µohm.cm |
|
FLEXURAL STRENGTH |
74 MPa |
57 MPa |
85 MPa |
|
COMPRESSIVE STRENGTH |
193 MPa |
124 MPa |
180 MPa |
|
TENSILE STRENGTH |
50 Mpa |
50 MPa |
|
|
MODULUS OF ELASTICITY |
12 Gpa |
14 Gpa |
|
|
SHORE HARDNESS |
86 |
84 |
80 |
|
COEFFICIENT OF THERMAL EXPANSION |
4,2X10 E-6/°C |
5,4 X10 E-6/°C |
5,0 X10 E-6/°C |
|
POROSITY |
<1% |
10% |
<1% |
|
AVERAGE GRAIN SIZE |
15µM |
13µM |
15µM |
|
THERMAL CONDUCTIVITY |
12 W/m°C |
112 W/m°C |
25 W/m°C |