Carbon-graphites with Carbon impregnations
Carbon graphites with Carbon impregnations
Carbon graphites with impregnations
Depending on the method of porosity reduction (elimination), carbon graphites are divided into:
- Carbon graphites impregnated with synthetic resins.
- Carbon graphites impregnated with metals.
In general, impregnation reduces porosity, increases the modulus of elasticity, hardness (slightly), thermal coefficient of linear expansion and thermal conductivity.
|
Material |
Carbon graphite with resin impregnation |
Carbon graphite impregnated with metals |
|||||||
| Type | M106K | M118K | M180K | M200K | M106H | M118F |
M118D |
M181D |
M181P |
| Heat resistance, ˚С |
200˚С |
200˚С | 210˚С | 210˚С | 200˚С | 200˚С |
350˚С |
350˚С | 350˚С |
|
Bending strength, MPa |
65 | - | 80 | 55 | 60 | - | 60 | 80 | 80 |
|
Compressive strength, MPa |
210 | 210 | 240 | 115 | 210 | 210 | 250 | 200 | 250 |
|
Thermal expansion coefficient, 10-6/˚С |
5,5 | 5,0 | 5,5 | 4,5 | 4,8 | 5,0 | 5,5 | 5,5 | 6,0 |
|
Shore hardness, HS |
90 | 85 | 90 | 55 | 85 | 85 | 85 | 80 | 75 |
|
Bulk density, g/cm3 |
1,65 |
1,75 | 1,80 | 1,82 | 1,65 | 1,75 |
2,40 |
2,30 | 2,40 |
|
Porosity, % |
2,0 | 2,0 | 1,2 | 1,2 | 1,5 | 2,0 | 2,0 | 2,0 | 2,5 |
| Peculiarity | Resistant to acids and alkalis, wide use alkali resistant | Acid resistant | Alkali resistant | Resistant to high temperature, high intensity | Resistant to alkali and high temperature, high intensity | ||||