Graphite blocks
Graphite blocks are used for lining the hearth bottoms of blast furnaces and other types of metallurgical furnaces.
|
Properties |
Units of measurement |
Typical values |
|
|
Grade |
|
DBG |
DBG (M) |
|
Bulk density |
g/cm3 |
1.62 |
1.74 |
|
Real density |
g/cm3 |
2.24 |
2.24 |
|
Open porosity |
% |
23 |
17 |
|
Total porosity |
% |
28 |
22 |
|
Compression strength |
MPa |
23 |
31 |
|
Flexural strength |
MPa |
9 |
16 |
|
Ash content |
% |
0.3 |
0.3 |
|
Linear thermal expansion coefficient, (20-520) ºC |
10-6 •К-1 |
2.5 |
2.6 |
|
Heat conductivity at 20 ºC |
W/m•K |
120 |
180 |
The above values are average values and they do not constitute a specification.
Dimensions of graphite blocks:
|
|
Maximum dimensions, mm |
|
Width |
from 200 to 400 |
|
Height |
from 200 to 400 |
|
Length |
to 1600 |