|
Product Code |
K23 |
K25 |
K26 |
K28 |
K30 |
|
Physical Properties: |
|
Classification
temperature |
1260
2300 |
1370
2500 |
1430
2600 |
1540
2800 |
1650
3000 |
|
Density g/cm3 |
0.75 |
0.8-0.9 |
0.8-0.9 |
0.9-1.0 |
1.1-1.2 |
|
Cold Crushing Strength
N/mm2 |
3.5-4.5 |
3-3.5 |
2.5 |
2-2.2 |
2 |
|
Chemical Analysis: |
|
Al2O3% |
44 |
48 |
55 |
64 |
70 |
|
SiO2% |
50 |
48 |
49 |
35 |
29 |
|
Fe2O3% |
1.1 |
0.9 |
0.6 |
0.3 |
03 |
|
CaO/MgO% |
2.5 |
1.8 |
0.2 |
0.3 |
0.2 |
|
Na2O/K2O% |
2 |
1.2 |
0.5 |
0.3 |
0.2 |
|
Thermal Properties: |
|
Permanent Liner
Change (PLC)% at.. °C |
1230<1 |
1340<1 |
1400<1 |
1510<1 |
1620<1.5 |
|
Thermal Expansion % at
1100 °C |
0.5 |
0.6 |
0.7 |
0.8 |
0.9 |
|
Thermal Conductivity W/m.k |
|
|
|
|
|
|
at 400 °C |
0.18 |
0.23 |
0.25 |
0.32 |
0.41 |
|
at 600 °C |
0.2 |
0.26 |
0.29 |
0.34 |
0.43 |
|
at 800 °C |
0.21 |
0.28 |
0.29 |
0.36 |
0.44 |
|
at 1000 °C |
0.33 |
0.39 |
0.43 |
0.45 |
050 |
