Alumina-corundum reinforcing castables BMKA
Alumina-corundum reinforcing castables BMKA as per TU 1523-040-13706960 -2004
Castables of alumina-corundum composition are designed formonolithic liningof heat units operating at temperatures up to1700оС, particularly of the backup layer of tundishes.
|
Properties |
Rating |
|
1. Weight ratio, %
Fe2O3, max. |
65 5.0 |
|
2. Loss on ignition, %, max. |
4.0 |
|
3. Compressive strength after firing:
- 1350 оС, MPa, min. |
16 35 |
|
4. Apparent porosity after firing:
|
22 |
|
5. Refractoriness, оС, min. |
1700 |
|
6. Grain size, %: residue on mesh №3, max.
|
35
|
