Carbon
Block
Carbon block can be used in electrical arc furnace and blast furnace as
conducing material and protecting wall. We can produce carbon block on
following section size (MM):
Section(MM)400×400
Section(MM)220×220
Section(MM)400×600
Section(MM)550×550
Section(MM)500×600
COMMON CARBON BLOCK FOR BLAST FURNACE
COMMON CARBON BLOCK FOR ELECTRICAL ARC FURNACE
Items |
Unit |
Figure for |
Blast Furnace |
Arc Furnace |
Ash max |
% |
8 |
8 |
Comprehensive strength min |
Mpa |
35 |
30 |
Porosity max |
% |
20 |
25 |
Bulk Density min |
g/cm3 |
1.50 |
1.50 |
Alkali Resistance
|
grade |
LC |
LC |
Carbon content min |
% |
90 |
90 |
Thermal conductivity (900°C)
min |
W/m∙k |
5.0 |
5.0 |
NOTE |
Thermal conductivity is only for reference use, cannot be practiced |
Self-bake
Carbon Block for Blast Furnace (YB/T2803-1991)
Self-bake Carbon Block for Calcium Carbide Furnace (YB/T5145-1993)
|
Unit |
Self-fire Carbon Block for Blast Furnace |
Self-fire Carbon Block for Calcium Carbide Furnace |
TKZ-1 |
TKZ-2 |
TKZ-1 |
TKZ-2 |
Pre heat |
Heat over
(800°C) |
Pre heat |
Heat over
(800°C) |
Pre heat |
Heat over
(800°C) |
Pre heat |
Heat over
(800°C) |
Carbon content min |
% |
85 |
93 |
82 |
90 |
85 |
93 |
80 |
86 |
Ash content max |
% |
5 |
6 |
9 |
10 |
5 |
6 |
10 |
13 |
Bulk Density min |
g/cm3 |
1.62 |
1.52 |
1.60 |
1.50 |
1.6 |
1.5 |
1.58 |
1.45 |
Porosity max |
% |
10 |
20 |
13 |
23 |
10 |
20 |
15 |
25 |
Comprehensive strength min |
Mpa |
31 |
31 |
26 |
26 |
300 |
300 |
250 |
250 |
Shrinkage after heating over (800°C)
|
% |
0.05 |
- |
0.01 |
- |
- |
0.05 |
- |
0.1 |
|