Carbon blocks
Carbon blocks are used for lining blast furnaces and other types of metallurgical furnaces
|
Properties |
Units of measurement |
Typical values |
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|
Grade |
|
DBU |
DBU-A |
DBU-B |
DBU-A (M) |
DBMP |
|
Bulk density |
g/cm3 |
1.56 |
1.58 |
1.63 |
1.66 |
1.62 |
|
Real density |
g/cm3 |
1.89 |
1.92 |
1.90 |
1.93 |
- |
|
Total porosity |
% |
18 |
18 |
14 |
14 |
- |
|
Open porosity |
% |
15 |
15 |
10 |
11 |
18 |
|
Compression strength |
MPa |
45 |
37 |
65 |
50 |
39 |
|
Ash content |
% |
4.0 |
2.0 |
4.0 |
2.0 |
15 |
|
Average linear thermal expansion coefficient, (20-520) ºC |
10-6 •1/°С |
2.6 |
2.1 |
2.6 |
2.5 |
2.4 |
|
Heat conductivity at 473K |
W/m•K |
9 |
15 |
10 |
17 |
16 |
|
Average pore diameter |
µm |
- |
- |
- |
- |
0.4 |
The above values are average values and they do not constitute a specification.
DBU - standard quality carbon blocks ;
DBU-A - carbon blocks with higher thermal conductivity;
DBU-B - carbon blocks with higher strength characteristics;
DBU-A (М) - carbon blocks with higher thermal conductivity and strength characteristics;
DBPM - micropore carbon blocks.
Dimensions of carbon blocks:
|
|
Dimensions, mm |
|
|
Width |
from 400 |
to 700 |
|
Height |
from 400 |
to 700 |
|
Length |
As per customer's drawings |
|
Configuration, dimensions and tolerances on geometrical dimensions of the blocks are as per approved customer’s drawings.