|
Carbon blocks are intended for lining blast furnaces and other types of metallurgical furnaces
| Technical characteristics |
Units of
measurements |
Typical values*
|
|||
| Grade |
DBU
|
DBU-А
|
DBU-B
|
DBU-А (M)
|
|
| Bulk density |
g/sm3
|
1.56
|
1.58
|
1.63
|
1.66
|
| Real density |
g/sm3
|
1.89
|
1.92
|
1.90
|
1.93
|
| Total porosity |
%
|
18
|
18
|
14
|
14
|
| Open porosity |
%
|
15
|
15
|
10
|
11
|
| Compression strength |
MPа
|
45
|
37
|
65
|
50
|
| Ash content |
%
|
4.0
|
2.0
|
4.0
|
2.3
|
| Temperature coefficient of linear expansion, (20-520)0C |
10-6 •1/0С
|
2.6
|
2.1
|
2.6
|
2.5
|
| Heat conductivity at 473K |
W/m·K
|
8
|
15
|
9
|
17
|
Indicated values are given as average values of properties and they do not constitute specification.
DBU – carbon blocks are intended for lining of bottoms (hearth bottoms) and crucibles (hearths) of metallurgical furnaces;
DBU-А – highly heat- conductive blocks are intended for lining of external ring courses of crucibles (hearths) of metallurgical furnaces;
DBU-B – low-porous blocks are intended for lining of internal ring courses of crucibles (hearths) of metallurgical furnaces;
DBU-А(M) – highly heat conductive fine-porous blocks are intended for lining of crucibles (hearths) of metallurgical furnaces.
Dimensions of carbon blocks:
|
Maximum dimensions, mm
|
||
| Width |
400
|
550
|
| Height |
400
|
550
|
| Length |
According to customer`s drawings
|
|
Configuration, dimensions and tolerances on geometrical dimensions of blocks are under approved customer’s drawings.
Chief expert in lining products for metallurgical facilities sumskoy@ukrgrafit.com.ua.